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Heating, Cooling, Plumbing & Indoor Air Quality Services in Old Town & Gold Coast, IL

Old Town & Gold Coast Service Overview

  • Historic Residential Properties: Old Town and the Gold Coast include pre-1900 rowhomes, mansions, historic residences, and older properties where the mechanical system needs to be considered alongside the building itself.

  • High-Rise & Modern Residences: Newer high-rise residences closer to Lake Shore Drive and Oak Street can have very different heating, cooling, plumbing, and comfort requirements.

  • Full-Service Mechanical Trades: Deljo Heating, Cooling & Plumbing provides heating, cooling, plumbing, and indoor air quality service throughout Old Town, the Gold Coast, and the 60610 ZIP code.

 

In Old Town and the Gold Coast, the mechanical system is only part of the job. A pre-1900 rowhome along Astor Street may have original plaster, detailed woodwork, and hydronic heat that deserves a careful approach, while a modern high-rise closer to Lake Shore Drive presents a completely different set of comfort needs. Here, getting the work right often means improving the system without losing sight of the property around it.

Deljo Heating, Cooling & Plumbing provides heating, cooling, plumbing, and indoor air quality service throughout Old Town, the Gold Coast, and the 60610 ZIP code. Call 773-829-4295 or contact us online to schedule service.

technicians in front of truck

Home Services Built Around Historic & Modern Chicago Properties

Old Town and the Gold Coast bring together historic rowhomes, mansions, multi-level residences, and modern high-rise condos. The right heating, cooling, plumbing, or indoor air quality approach depends on the property, the existing system, and how much of the finished space needs to remain undisturbed.

Solving HVAC, Plumbing & Indoor Air Quality Issues in Old Town & Gold Coast

Problem: Older residences can have historic finishes, plaster, woodwork, and hydronic systems that require careful service, while high-rise residences can have individual systems and building conditions that create a completely different set of requirements.

Solution: Deljo evaluates the actual property and mechanical system before determining whether repair, maintenance, replacement, airflow improvements, humidity control, or another service is appropriate.

Boiler, Steam & Heating Service in Old Town & Gold Coast

Steam and hot-water boilers remain an important part of heating service in the neighborhood’s older residences. Mansions and pre-war rowhomes around Astor Street and the Old Town Triangle can still rely on hydronic systems that have served the property for decades.

Elsewhere in 60610, furnaces, heat pumps, and newer high-efficiency equipment are part of the mix. In high-rise residences closer to the lakefront, the heating setup can be completely different from what we find in a rowhome or mansion farther west. When an Old Town or Gold Coast heating system needs attention, the work may involve:

A heating call near the Charnley-Persky House may involve a very different system from one closer to Oak Street or Lake Shore Drive. We focus on how the property is actually heated before deciding whether repair, maintenance, or replacement is the right path.

“Sam was very knowledgeable and easy to work with. He was patient and capable of explaining the situation with ease.”

Eric P

Stay warm all winter long! Call Deljo at 773-829-4295 to schedule heating service in Old Town or the Gold Coast.

AC Repair, Ductless Cooling & Discreet System Upgrades

Cooling can be one of the trickier parts of working in older Old Town and Gold Coast residences. Conventional ductwork is not always practical where homeowners want to preserve plaster, millwork, or other finished surfaces. Ductless and concealed systems can offer another way to add or improve cooling without making the installation more disruptive than it needs to be.

Repairmen works on a home's air conditioner unit outdoors.

The high-rise side of the neighborhood brings a different set of conditions. Units closer to Lake Shore Drive can have their own cooling systems, different exposures, and very different load demands from the older homes farther west. For cooling that fits the property instead of fighting against it, Deljo offers:

The Old Town Art Fair fills Wisconsin and Lincoln avenues each June, while the Gold Coast Art Fair brings more summer activity nearby. Inside the home, we are focused on keeping the space comfortable with a system that works naturally with the building.

“Had the A/C Checked out and some other things to the roof unit. Mr Mora was quick and efficient at checking things out and doing what needed to be done. Yep, it’s cold.”

Kenneth B

Beat the summer heat with reliable AC service! Call Deljo at 773-829-4295 to schedule cooling service in Old Town or the Gold Coast.

Indoor Air Quality, Humidity & Smart Comfort Controls

Comfort problems in Old Town and the Gold Coast are not always tied to failed equipment. In larger multi-level homes along Astor Street or North State Parkway, one floor can feel very different from another. Original plaster, natural woodwork, and older interiors can also make humidity control more noticeable, especially during Chicago winters.

High-rise condos bring their own concerns. Residents closer to Lake Shore Drive or Oak Street may be more focused on thermostat control, filtration, and getting better performance from an individual system without making unnecessary changes to the rest of the unit. For homes where comfort depends on more than temperature alone, Deljo can help with:

The goal is practical: better airflow, more balanced humidity, cleaner air, and controls that make the system easier to live with every day.

Plumbing Service for Old Town Homes & Gold Coast Residences

Plumbing work here can be as much about access and care as the repair itself. In an older rowhome or mansion, a pipe repair, fixture replacement, or bathroom update may need to be completed around finished surfaces the homeowner wants protected. In a high-rise residence, access and shared building infrastructure can become part of the job.

pipe repair

Around Astor Street, Oak Street, Rush Street, and the Old Town Triangle, plumbing needs range from everyday repairs to larger upgrades in kitchens and bathrooms. When plumbing problems show up, Deljo can take care of:

Whether we are tracing a leak, replacing a fixture, or working around a finished interior, the goal is to solve the problem cleanly and keep unnecessary disruption to a minimum.

“Greg was professional, prompt, attentive. Actively answered questions and offered advice. Would use this service again.”

Jeremy G

Need plumbing help in Old Town or the Gold Coast? Call Deljo at 773-829-4295 to schedule service.

Local Service From Astor Street to the Old Town Triangle

The Gold Coast stretches from North Avenue to Oak Street and from Lake Shore Drive west to Clark Street, bringing mansions, rowhomes, and high-rise residences into a compact part of Chicago. Astor Street remains one of the area’s defining residential corridors, while Oak Street and Rush Street add a much busier commercial and entertainment side.

Old Town shifts the feel again. The Old Town Triangle preserves much of the neighborhood’s 19th-century character, while Second City anchors an active entertainment district nearby. North State Parkway adds another tree-lined residential corridor with Victorian and Edwardian architecture.

That mix matters on service calls. One address may involve a boiler serving a multi-level historic home, while another may involve newer forced-air equipment or condo systems in a high-rise only a few blocks away.

Comfort Service That Respects the Property

Homeowners in Old Town and the Gold Coast are often looking for two things at once: dependable comfort and work that respects the property itself. That can mean preserving a boiler that still makes sense, improving cooling without tearing into finished spaces, or handling a plumbing repair with as little disruption as possible.

Deljo Heating, Cooling & Plumbing provides heating, cooling, plumbing, and indoor air quality service throughout Old Town, the Gold Coast, Astor Street, the Old Town Triangle, North State Parkway, Oak Street, Rush Street, and the surrounding 60610 ZIP code. Call 773-829-4295 or contact us online to schedule service.

Old Town & Gold Coast Homeowners FAQ

What heating services does Deljo provide in Old Town and the Gold Coast?

A: Deljo provides 24/7 emergency heating service, heating installation, heating repair, heating maintenance, furnace service and replacement, heat pump service, and boiler service.

Does Deljo service boiler and steam heating systems?

A: Yes. Boiler service is included among Deljo’s heating services, and steam and hot-water boilers remain an important part of heating service in many older residences in the area.

Does Deljo provide AC repair and installation in Old Town and the Gold Coast?

A: Yes. Deljo provides AC repair, AC installation, AC maintenance, heat pump service, and ductless AC service.

Can ductless cooling be useful in older Old Town or Gold Coast homes?

A: Ductless and concealed systems can offer another way to add or improve cooling where conventional ductwork is not practical or where homeowners want to preserve plaster, millwork, or other finished surfaces.

What indoor air quality services does Deljo provide?

A: Deljo can help with air duct cleaning, Aeroseal, indoor air quality inspection and testing, air filtration, purifying ionizers, air purifiers, whole-home humidifiers, whole-home dehumidifiers, thermostats, and AC coil and condenser cleaning.

What plumbing services are available in Old Town and the Gold Coast?

A: Deljo provides emergency plumbing services, drain cleaning, water heaters, whole-home water filters, pipe repair, frozen pipe service, flood control, sump pumps, plumbing fixtures, repiping, sewer lines, and showers and bathtubs.

Page Updated on September 18, 2026

 

Recent Jobs and Reviews in Chicago, IL

Chicago, IL at a glance

Deljo Heating, Cooling & Plumbing has completed 20 jobs in Chicago, IL in September 2026.

The most recent job was on September 21, 2026.

Job Locations and Reviews

Responded to no cooling complaint on 9-year-old MagicPak unit installed in July. Diagnosed intermittent power loss affecting condenser operation and wet switch sensor, along with "no power to R wire" error at Nest thermostat. Inspected electrical connections and wire terminations at unit, finding loose connections at low-voltage terminal block causing intermittent power interruptions. Secured all wire connections using proper wire nuts and verified continuity on R wire circuit to thermostat. Addressed standing water in condensate pan by clearing partial blockage in drain line and confirming proper wet switch operation. Cycled system through multiple cooling cycles to verify consistent power delivery to all components and confirmed condenser now running continuously without interruption. Thermostat displaying proper power status and unit operating normally at departure.
Responded to no cooling complaint on 9-year-old MagicPak unit installed in July. Diagnosed intermittent power loss affecting condenser operation and wet switch sensor, along with "no power to R wire" error at Nest thermostat. Inspected electrical connections and wire terminations at unit, finding loose connections at low-voltage terminal block causing intermittent power interruptions. Secured all wire connections using proper wire nuts and verified continuity on R wire circuit to thermostat. Addressed standing water in condensate pan by clearing partial blockage in drain line and confirming proper wet switch operation. Cycled system through multiple cooling cycles to verify consistent power delivery to all components and confirmed condenser now running continuously without interruption. Thermostat displaying proper power status and unit operating normally at departure.
Gabe G.
Gabe G. Checked in
Responded to no cooling complaint on 9-year-old MagicPak unit installed in July. Diagnosed intermittent power loss affecting condenser operation and wet switch sensor, along with "no power to R wire" error at Nest thermostat. Inspected electrical connections and wire terminations at unit, finding loose connections at low-voltage terminal block causing intermittent power interruptions. Secured all wire connections using proper wire nuts and verified continuity on R wire circuit to thermostat. Addressed standing water in condensate pan by clearing partial blockage in drain line and confirming proper wet switch operation. Cycled system through multiple cooling cycles to verify consistent power delivery to all components and confirmed condenser now running continuously without interruption. Thermostat displaying proper power status and unit operating normally at departure.
Chicago, IL 60610
Returned to complete previously scheduled repairs on residential HVAC system. Replaced faulty flame sensor and ignitor to restore proper burner operation and system safety. Installed new angle shut-off valve on water supply line to improve system serviceability and code compliance. Completed two additional minor repairs identified during initial service visit. Performed complete system drain and refill procedure to remove sediment and contaminants, ensuring optimal heat transfer efficiency and extending equipment lifespan. All replaced components tested and verified operational. System restored to full functionality with improved reliability and safety.
Returned to complete previously scheduled repairs on residential HVAC system. Replaced faulty flame sensor and ignitor to restore proper burner operation and system safety. Installed new angle shut-off valve on water supply line to improve system serviceability and code compliance. Completed two additional minor repairs identified during initial service visit. Performed complete system drain and refill procedure to remove sediment and contaminants, ensuring optimal heat transfer efficiency and extending equipment lifespan. All replaced components tested and verified operational. System restored to full functionality with improved reliability and safety.
Drew W.
Drew W. Checked in
Returned to complete previously scheduled repairs on residential HVAC system. Replaced faulty flame sensor and ignitor to restore proper burner operation and system safety. Installed new angle shut-off valve on water supply line to improve system serviceability and code compliance. Completed two additional minor repairs identified during initial service visit. Performed complete system drain and refill procedure to remove sediment and contaminants, ensuring optimal heat transfer efficiency and extending equipment lifespan. All replaced components tested and verified operational. System restored to full functionality with improved reliability and safety.
Chicago, IL 60614
Completed scheduled HVAC maintenance agreement service on furnace system. Performed comprehensive inspection of blower motor assembly and replaced air filters. Documented equipment condition with photos of blower wheel assembly and filter replacement for maintenance records.
Completed scheduled HVAC maintenance agreement service on furnace system. Performed comprehensive inspection of blower motor assembly and replaced air filters. Documented equipment condition with photos of blower wheel assembly and filter replacement for maintenance records.
Alan M.
Alan M. Checked in
Completed scheduled HVAC maintenance agreement service on furnace system. Performed comprehensive inspection of blower motor assembly and replaced air filters. Documented equipment condition with photos of blower wheel assembly and filter replacement for maintenance records.
Chicago, IL 60610
Completed HVAC system cleaning that was previously initiated, with specific attention to mold remediation near the rooftop unit. Removed and thoroughly cleaned blower wheel assembly, which showed significant dust accumulation and discoloration on the curved blades and central hub. Addressed mold contamination in the RTU area to restore proper air quality and system performance.
Completed HVAC system cleaning that was previously initiated, with specific attention to mold remediation near the rooftop unit. Removed and thoroughly cleaned blower wheel assembly, which showed significant dust accumulation and discoloration on the curved blades and central hub. Addressed mold contamination in the RTU area to restore proper air quality and system performance.
Jonathan M.
Jonathan M. Checked in
Completed HVAC system cleaning that was previously initiated, with specific attention to mold remediation near the rooftop unit. Removed and thoroughly cleaned blower wheel assembly, which showed significant dust accumulation and discoloration on the curved blades and central hub. Addressed mold contamination in the RTU area to restore proper air quality and system performance.
Chicago, IL 60614
Completed commercial preventative maintenance inspection on boiler system in accordance with maintenance agreement. Documented existing conditions including water heater tank showing significant rust deterioration and corrosion, along with drainage system components and boiler room grating displaying oxidation and mineral buildup. All observations photographed for maintenance records, and boiler room access code confirmed for future service calls.
Completed commercial preventative maintenance inspection on boiler system in accordance with maintenance agreement. Documented existing conditions including water heater tank showing significant rust deterioration and corrosion, along with drainage system components and boiler room grating displaying oxidation and mineral buildup. All observations photographed for maintenance records, and boiler room access code confirmed for future service calls.
Joe A.
Joe A. Checked in
Completed commercial preventative maintenance inspection on boiler system in accordance with maintenance agreement. Documented existing conditions including water heater tank showing significant rust deterioration and corrosion, along with drainage system components and boiler room grating displaying oxidation and mineral buildup. All observations photographed for maintenance records, and boiler room access code confirmed for future service calls.
Chicago, IL 60630
Responded to A/C breakdown on commercial rooftop unit. Upon arrival, performed electrical diagnostics using digital multimeter to test system components. Testing revealed failed capacitor requiring replacement. Installed complete breakdown kit including new dual-run capacitor and contactor assembly. Verified proper voltage readings and electrical connections throughout system. Tested unit operation and confirmed cooling cycle functioning properly. System restored to normal operation.
Responded to A/C breakdown on commercial rooftop unit. Upon arrival, performed electrical diagnostics using digital multimeter to test system components. Testing revealed failed capacitor requiring replacement. Installed complete breakdown kit including new dual-run capacitor and contactor assembly. Verified proper voltage readings and electrical connections throughout system. Tested unit operation and confirmed cooling cycle functioning properly. System restored to normal operation.
Angel G.
Angel G. Checked in
Responded to A/C breakdown on commercial rooftop unit. Upon arrival, performed electrical diagnostics using digital multimeter to test system components. Testing revealed failed capacitor requiring replacement. Installed complete breakdown kit including new dual-run capacitor and contactor assembly. Verified proper voltage readings and electrical connections throughout system. Tested unit operation and confirmed cooling cycle functioning properly. System restored to normal operation.
Chicago, IL 60610
Completed return visit for PVC drain line repair in utility room. Repaired and secured vertical PVC drainage piping with proper fittings and joints, ensuring proper alignment and connection integrity throughout the system.
Completed return visit for PVC drain line repair in utility room. Repaired and secured vertical PVC drainage piping with proper fittings and joints, ensuring proper alignment and connection integrity throughout the system.
Jorge D.
Jorge D. Checked in
Completed return visit for PVC drain line repair in utility room. Repaired and secured vertical PVC drainage piping with proper fittings and joints, ensuring proper alignment and connection integrity throughout the system.
Chicago, IL 60613
Returned to property to complete evaporator coil cleaning as part of building wellness check follow-up. Upon arrival, found extensive ice and frost buildup covering the entire evaporator coil assembly, with heavy accumulation on fins and icicle-like formations indicating active freezing condition. Addressed the frozen coil issue, performed thorough cleaning of the evaporator coil to remove dirt, dust, and debris accumulation from fin surfaces. Cleaned corroded areas at base of unit and ensured proper system operation upon completion.
Returned to property to complete evaporator coil cleaning as part of building wellness check follow-up. Upon arrival, found extensive ice and frost buildup covering the entire evaporator coil assembly, with heavy accumulation on fins and icicle-like formations indicating active freezing condition. Addressed the frozen coil issue, performed thorough cleaning of the evaporator coil to remove dirt, dust, and debris accumulation from fin surfaces. Cleaned corroded areas at base of unit and ensured proper system operation upon completion.
Gregory Z.
Gregory Z. Checked in
Returned to property to complete evaporator coil cleaning as part of building wellness check follow-up. Upon arrival, found extensive ice and frost buildup covering the entire evaporator coil assembly, with heavy accumulation on fins and icicle-like formations indicating active freezing condition. Addressed the frozen coil issue, performed thorough cleaning of the evaporator coil to remove dirt, dust, and debris accumulation from fin surfaces. Cleaned corroded areas at base of unit and ensured proper system operation upon completion.
Chicago, IL 60616
Responded to ongoing condensation issue causing drywall damage in bathroom ceiling area. Accessed attic space above bathroom and wrapped previously exposed ductwork with bubble wrap insulation to prevent further condensation buildup. Installed insulation on multiple sections of metallic ductwork running through ceiling joists, securing material with appropriate fasteners and support brackets. Verified all accessible ductwork in affected area is now properly insulated to maintain temperature differential and eliminate moisture accumulation on duct surfaces.
Responded to ongoing condensation issue causing drywall damage in bathroom ceiling area. Accessed attic space above bathroom and wrapped previously exposed ductwork with bubble wrap insulation to prevent further condensation buildup. Installed insulation on multiple sections of metallic ductwork running through ceiling joists, securing material with appropriate fasteners and support brackets. Verified all accessible ductwork in affected area is now properly insulated to maintain temperature differential and eliminate moisture accumulation on duct surfaces.
Anthony H.
Anthony H. Checked in
Responded to ongoing condensation issue causing drywall damage in bathroom ceiling area. Accessed attic space above bathroom and wrapped previously exposed ductwork with bubble wrap insulation to prevent further condensation buildup. Installed insulation on multiple sections of metallic ductwork running through ceiling joists, securing material with appropriate fasteners and support brackets. Verified all accessible ductwork in affected area is now properly insulated to maintain temperature differential and eliminate moisture accumulation on duct surfaces.
Chicago, IL 60622
Returned to property to install surge protection devices for both the outdoor condensing unit and indoor ECM blower motor as previously discussed. Successfully installed inline surge suppressors on the electrical circuits serving the condenser and air handler to protect sensitive electronic components from voltage spikes and power surges. All surge protection devices tested and verified operational upon completion.
Returned to property to install surge protection devices for both the outdoor condensing unit and indoor ECM blower motor as previously discussed. Successfully installed inline surge suppressors on the electrical circuits serving the condenser and air handler to protect sensitive electronic components from voltage spikes and power surges. All surge protection devices tested and verified operational upon completion.
Charlie B.
Charlie B. Checked in
Returned to property to install surge protection devices for both the outdoor condensing unit and indoor ECM blower motor as previously discussed. Successfully installed inline surge suppressors on the electrical circuits serving the condenser and air handler to protect sensitive electronic components from voltage spikes and power surges. All surge protection devices tested and verified operational upon completion.
Chicago, IL 60614
Chicago, IL - Completed a full water heater replacement in the basement utility area, installing a new Standard brand tanked water heater unit. Connected all supply and discharge copper piping to the top of the unit with proper fittings and configurations, and installed a thermal expansion tank to protect the system from excessive pressure buildup. The installation required two technicians and approximately three hours to complete, ensuring all connections met code requirements and the system was fully operational.
Sean W.
Sean W. Checked in
Completed a full water heater replacement in the basement utility area, installing a new Standard brand tanked water heater unit. Connected all supply and discharge copper piping to the top of the unit with proper fittings and configurations, and installed a thermal expansion tank to protect the system from excessive pressure buildup. The installation required two technicians and approximately three hours to complete, ensuring all connections met code requirements and the system was fully operational.
Chicago, IL 60613
Completed routine HVAC maintenance agreement inspection. Verified system operation and documented equipment condition with photos showing utility room installation and safety sensor with proper wiring configuration.
Completed routine HVAC maintenance agreement inspection. Verified system operation and documented equipment condition with photos showing utility room installation and safety sensor with proper wiring configuration.
Jay L.
Jay L. Checked in
Completed routine HVAC maintenance agreement inspection. Verified system operation and documented equipment condition with photos showing utility room installation and safety sensor with proper wiring configuration.
Chicago, IL 60626
Performed comprehensive maintenance on two furnaces and humidifier system as part of ongoing service agreement. Replaced 16x25x1 air filter and installed #35 water panel for humidifier to ensure optimal air quality and humidity control. Conducted thorough inspection of HVAC installation including furnace units, air handler, PVC condensate drainage lines, electrical connections, and ductwork components. Examined blower assembly and verified proper operation of centrifugal fan with clean blades and housing showing normal condensation patterns, confirming system functionality and readiness for continued service.
Performed comprehensive maintenance on two furnaces and humidifier system as part of ongoing service agreement. Replaced 16x25x1 air filter and installed #35 water panel for humidifier to ensure optimal air quality and humidity control. Conducted thorough inspection of HVAC installation including furnace units, air handler, PVC condensate drainage lines, electrical connections, and ductwork components. Examined blower assembly and verified proper operation of centrifugal fan with clean blades and housing showing normal condensation patterns, confirming system functionality and readiness for continued service.
Gabe G.
Gabe G. Checked in
Performed comprehensive maintenance on two furnaces and humidifier system as part of ongoing service agreement. Replaced 16x25x1 air filter and installed #35 water panel for humidifier to ensure optimal air quality and humidity control. Conducted thorough inspection of HVAC installation including furnace units, air handler, PVC condensate drainage lines, electrical connections, and ductwork components. Examined blower assembly and verified proper operation of centrifugal fan with clean blades and housing showing normal condensation patterns, confirming system functionality and readiness for continued service.
Chicago, IL 60647
Conducted comprehensive assessment of existing residential HVAC system and water heating equipment for full system replacement estimate. Evaluated current installation consisting of gas furnace, AO Smith water heater, and integrated humidifier unit housed in utility closet, documenting equipment conditions, existing ductwork configuration including metallic flex duct and ventilation routing, plumbing connections with copper and PVC piping, electrical service, and spatial constraints for replacement equipment sizing and installation access.
Conducted comprehensive assessment of existing residential HVAC system and water heating equipment for full system replacement estimate. Evaluated current installation consisting of gas furnace, AO Smith water heater, and integrated humidifier unit housed in utility closet, documenting equipment conditions, existing ductwork configuration including metallic flex duct and ventilation routing, plumbing connections with copper and PVC piping, electrical service, and spatial constraints for replacement equipment sizing and installation access.
Michael C.
Michael C. Checked in
Conducted comprehensive assessment of existing residential HVAC system and water heating equipment for full system replacement estimate. Evaluated current installation consisting of gas furnace, AO Smith water heater, and integrated humidifier unit housed in utility closet, documenting equipment conditions, existing ductwork configuration including metallic flex duct and ventilation routing, plumbing connections with copper and PVC piping, electrical service, and spatial constraints for replacement equipment sizing and installation access.
Chicago, IL 60611
Chicago, IL - Conducted on-site assessment for whole-house humidifier installation on existing 4-year-old Amana forced-air natural gas furnace located in basement with no current humidification system. Evaluated available plenum space, existing ductwork configuration, and water supply routing to determine optimal humidifier placement and recommend between fan-powered and bypass unit options based on system compatibility and spatial constraints.
Matthew A.
Matthew A. Checked in
Conducted on-site assessment for whole-house humidifier installation on existing 4-year-old Amana forced-air natural gas furnace located in basement with no current humidification system. Evaluated available plenum space, existing ductwork configuration, and water supply routing to determine optimal humidifier placement and recommend between fan-powered and bypass unit options based on system compatibility and spatial constraints.
Chicago, IL 60613
Responded to no cooling call with reported loud noise from rooftop packaged HVAC unit. Upon arrival, inspected 6-year-old air handler and rooftop RTU installation. Performed diagnostic assessment of unit operation, examined fan assembly and motor components through top grille access. Evaluated condenser fan guard, motor mounting, and internal components for abnormal wear, debris, or mechanical issues causing excessive noise. Documented equipment condition with photos showing rooftop unit placement, fan assembly configuration, and overall system installation for service records.
Responded to no cooling call with reported loud noise from rooftop packaged HVAC unit. Upon arrival, inspected 6-year-old air handler and rooftop RTU installation. Performed diagnostic assessment of unit operation, examined fan assembly and motor components through top grille access. Evaluated condenser fan guard, motor mounting, and internal components for abnormal wear, debris, or mechanical issues causing excessive noise. Documented equipment condition with photos showing rooftop unit placement, fan assembly configuration, and overall system installation for service records.
Gerardo M.
Gerardo M. Checked in
Responded to no cooling call with reported loud noise from rooftop packaged HVAC unit. Upon arrival, inspected 6-year-old air handler and rooftop RTU installation. Performed diagnostic assessment of unit operation, examined fan assembly and motor components through top grille access. Evaluated condenser fan guard, motor mounting, and internal components for abnormal wear, debris, or mechanical issues causing excessive noise. Documented equipment condition with photos showing rooftop unit placement, fan assembly configuration, and overall system installation for service records.
Chicago, IL 60660
Responded to E103 error code on Nest thermostat for a 9-year-old Trane XR air conditioning system (Model 4TTR3024H1000PA). Diagnosed and resolved thermostat wiring/contact issue at the rooftop unit. System restored to normal cooling operation without requiring thermostat replacement.
Responded to E103 error code on Nest thermostat for a 9-year-old Trane XR air conditioning system (Model 4TTR3024H1000PA). Diagnosed and resolved thermostat wiring/contact issue at the rooftop unit. System restored to normal cooling operation without requiring thermostat replacement.
Gerardo M.
Gerardo M. Checked in
Responded to E103 error code on Nest thermostat for a 9-year-old Trane XR air conditioning system (Model 4TTR3024H1000PA). Diagnosed and resolved thermostat wiring/contact issue at the rooftop unit. System restored to normal cooling operation without requiring thermostat replacement.
Chicago, IL 60647
Conducted comprehensive estimate visit for dual-zone HVAC system replacement in large residential property. Evaluated existing 20-year-old Trane/Goodman equipment including basement-installed furnace and air conditioner, plus main floor furnace and heat pump, all original to the home and approaching end of service life. Basement system replacement specified as like-for-like gas furnace and air conditioning unit; main floor system designed as hybrid configuration with heat pump primary heating and downsized gas furnace backup for enhanced efficiency. Reviewed installation requirements for both utility closet and main floor closet locations, assessed existing ductwork, electrical service, venting arrangements, and condensate drainage systems. Documented current equipment specifications, photographed existing Goodman furnace installation with PVC venting and electrical connections, and captured smart thermostat configuration. Presented equipment options from Trane and Carrier product line
Conducted comprehensive estimate visit for dual-zone HVAC system replacement in large residential property. Evaluated existing 20-year-old Trane/Goodman equipment including basement-installed furnace and air conditioner, plus main floor furnace and heat pump, all original to the home and approaching end of service life. Basement system replacement specified as like-for-like gas furnace and air conditioning unit; main floor system designed as hybrid configuration with heat pump primary heating and downsized gas furnace backup for enhanced efficiency. Reviewed installation requirements for both utility closet and main floor closet locations, assessed existing ductwork, electrical service, venting arrangements, and condensate drainage systems. Documented current equipment specifications, photographed existing Goodman furnace installation with PVC venting and electrical connections, and captured smart thermostat configuration. Presented equipment options from Trane and Carrier product line
Tyler B.
Tyler B. Checked in
Conducted comprehensive estimate visit for dual-zone HVAC system replacement in large residential property. Evaluated existing 20-year-old Trane/Goodman equipment including basement-installed furnace and air conditioner, plus main floor furnace and heat pump, all original to the home and approaching end of service life. Basement system replacement specified as like-for-like gas furnace and air conditioning unit; main floor system designed as hybrid configuration with heat pump primary heating and downsized gas furnace backup for enhanced efficiency. Reviewed installation requirements for both utility closet and main floor closet locations, assessed existing ductwork, electrical service, venting arrangements, and condensate drainage systems. Documented current equipment specifications, photographed existing Goodman furnace installation with PVC venting and electrical connections, and captured smart thermostat configuration. Presented equipment options from Trane and Carrier product line
Chicago, IL 60618
Responded to callback for recurring malfunction code 24 on basement Carrier unit that reappeared after previous day's service visit. Accessed thermostat system monitor and adjusted gas heat airflow efficiency settings to resolve the system fault error. Documented thermostat configuration changes with photos showing enable/disable toggle adjustments and airflow parameter modifications to clear the malfunction code and restore proper system operation.
Responded to callback for recurring malfunction code 24 on basement Carrier unit that reappeared after previous day's service visit. Accessed thermostat system monitor and adjusted gas heat airflow efficiency settings to resolve the system fault error. Documented thermostat configuration changes with photos showing enable/disable toggle adjustments and airflow parameter modifications to clear the malfunction code and restore proper system operation.
Gregory Z.
Gregory Z. Checked in
Responded to callback for recurring malfunction code 24 on basement Carrier unit that reappeared after previous day's service visit. Accessed thermostat system monitor and adjusted gas heat airflow efficiency settings to resolve the system fault error. Documented thermostat configuration changes with photos showing enable/disable toggle adjustments and airflow parameter modifications to clear the malfunction code and restore proper system operation.
Chicago, IL 60614
Conducted on-site assessment for water heater replacement due to active leak. Performed detailed measurements of existing equipment and surrounding ductwork to determine proper sizing and clearances for new unit installation. Documented current conditions including mechanical room layout, existing piping configuration, and ventilation components to prepare comprehensive replacement estimate.
Conducted on-site assessment for water heater replacement due to active leak. Performed detailed measurements of existing equipment and surrounding ductwork to determine proper sizing and clearances for new unit installation. Documented current conditions including mechanical room layout, existing piping configuration, and ventilation components to prepare comprehensive replacement estimate.
Jake R.
Jake R. Checked in
Conducted on-site assessment for water heater replacement due to active leak. Performed detailed measurements of existing equipment and surrounding ductwork to determine proper sizing and clearances for new unit installation. Documented current conditions including mechanical room layout, existing piping configuration, and ventilation components to prepare comprehensive replacement estimate.
Chicago, IL 60613

Client Testimonials

Read the opinions of our satisfied customers.

5 stars

Deljo’s heating and cooling team was awesome to work with. As a first-time homeowner, I really appreciated how clearly they explained everything and answered all my questions. From the quote to the install and follow-up, the service was top-notch. Highly recommend!

Lindsey A. Chicago, IL

5 stars

Matt did an amazing job. He serviced our home and our rental property. He gave us options to help our systems run more efficiently. He also told us about Deljo’s new plumbing inspection which was very affordable. He is great!

Jordan R. Chicago, IL

5 stars

We had a problem with our Humidifier and called Deljo. Jesus came out to help and was amazing. He was extremely knowledgeable, detail oriented, and super courteous. Amazing customer experience!

Jeff C. Chicago, IL

5 stars

Jordan and Jesus were extremely helpful and knowledgeable! We would 100% work with them and have them back. They were both very professional and efficiently fixed our heating system.

Emily L. Chicago, IL

5 stars

Shout out to Ernesto for coming out and servicing our furnace and air con. Deljo provides a great service and glad to trust them with our HVAC for our small business.

Lauren H. Chicago, IL

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