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.

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:
- Heating installation
- Heating repair
- Heating maintenance
- Furnace service and replacement
- Heat pump service
- Boiler service
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.

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:
- Air duct cleaning
- Aeroseal
- Indoor air quality inspection and testing
- Air filtration
- Purifying ionizers
- Air purifiers
- Whole-home humidifiers
- Whole-home dehumidifiers
- Thermostats
- AC coil and condenser cleaning
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.

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:
- 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
- Showers and bathtubs
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 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 October 2026.
The most recent job was on October 14, 2026.
Deljo Heating, Cooling & Plumbing has completed 9,898 jobs in Chicago, IL in the last 12 months.
Job Locations and Reviews
Performed seasonal maintenance on two furnaces and humidifiers, including replacement of 16x25x1 and 14x20x1 air filters. Verified heating operation and humidifier function, with the thermostat confirming normal heat call and indoor humidity at 38%. Used an inspection camera to visually check internal components, and all systems were operating properly at completion.
Performed scheduled maintenance on the wall-mounted Aprilaire steam humidifier serving the #80 tank, inspecting the cylinder, drain and fill plumbing, and electrical connections. Verified proper operation with On/Off, Fill, and Steam indicators active and no Drain or Service alerts present, confirming the unit is functioning normally.
Performed a full plumbing inspection of the residence, including all four bathrooms, checking fixtures and supply connections for leaks, corrosion, and proper operation. Verified toilet supply lines were intact, with braided stainless steel flexible connectors showing no rust, cracking, or active leakage, and conducted a water quality test for pH and chlorine/bromine levels.
Responded to a no-heat complaint (furnace blowing cold air) and inspected the gas furnace with the lower access panel removed, finding standing water and rust/mineral staining on the base pan around the PVC flue/condensate connection, indicating a condensate drainage leak. Inspected the condensate drain line, collar, and fittings serving the furnace and associated coil cabinet, and addressed the water intrusion at the source to restore proper drainage and safe operation; tested the unit to verify heat output.
Responded to a no-cool call where the indoor blower operated but the outdoor condensing unit failed to energize following a recent blower motor and wheel replacement. Inspected the air handler control board and low-voltage wiring, which was found dense and disorganized with loosely draped and tangled conductors, and verified the thermostat control circuit and 24V signal path to the condenser contactor. Checked the refrigerant-side components, including the valve and brass fitting connections, and measured line temperature to confirm system operation and restore cooling.
Returned to the site and replaced the water treatment beads and a motor on the whole-building water heater system. Installed new blower motor assemblies per manufacturer installation instructions, reconnected wiring and fittings, and verified proper operation of the unit following the repair.
Performed annual maintenance on two gas furnaces, a whole-house humidifier, and a water heater, including replacement of the 16x25x4 media filters and servicing of the humidifier pad (#35). During inspection, heat discoloration and soot scorching were observed on the upper cabinet insulation of one furnace, and borescope inspection of the heat exchanger passage revealed a crumpled foreign object near the far end; recommend further evaluation of combustion and venting performance and heat exchanger integrity.
Performed scheduled maintenance on one furnace and one humidifier, including replacement of the 17x28x1 pleated return air filter, which showed dust loading and frame damage. Inspected the blower and plenum area, noting light dust and powder residue on the plastic housing, and verified the humidifier assembly and drain fitting were in serviceable condition. System was left operating and ready for the heating season.
Performed maintenance inspection on a gas furnace approximately 12 years old, including a borescope inspection of the heat exchanger and flue passages, which revealed heavy rust, scale buildup, and corrosion along with debris accumulation. Found the heat exchanger severely deteriorated with multiple perforations and burn-through holes, along with brittle wiring and aged control components, creating a potential safety hazard. Documented findings with photographs and recommended furnace replacement.
Performed scheduled maintenance on the gas furnace and tankless water heater, including replacement of the 20x25x1 air filter and inspection of the furnace, humidifier, condensate drain, and PVC venting, with no leaks, corrosion, or damage observed. Flushed and descaled the tankless water heater at the customer's request, cleaning the inlet water filter screen and verifying proper operation upon completion.
Responded to a no-cool complaint on a Trane gas furnace/air handler installation. Inspected the equipment with the front panel removed and evaluated the gas valve, burner assembly, control wiring, and condensate drain piping to diagnose the cause of the unit not energizing. Noted rust streaking on the galvanized flue pipe near the cabinet connection, which should be monitored for possible moisture or condensation issues.
Responded to a no-cooling call on a 5-year-old split system and inspected the attic-mounted air handler, where the control board displayed a "STANDBY – FLOAT SW FAULT" code, indicating the condensate overflow safety switch had tripped and locked out cooling operation. The evaporator coil and cabinet showed no signs of frost, ice, or corrosion, and the blower assembly appeared intact. Addressed the float switch fault condition to restore normal operation and ensure proper condensate drainage and system cooling.
Performed scheduled maintenance on two furnaces and two whole-house humidifiers under the service agreement; media filters were excluded from scope. Inspected the basement mechanical space and crawl space access, and documented rust and corrosion on the ductwork above one humidifier along with moisture spotting on the unit housing, loose wiring with exposed connectors, and staining on the floor and access steps, which should be evaluated for possible water leakage or excess condensation.
Responded to a water leak complaint on a 15-year-old Unico mini-split system. Inspected the indoor unit and verified supply air temperature of approximately 47.5°F at the outlet to confirm proper cooling operation. Connected a reinforced hose to the unit's drain line to flush and clear the condensate drain obstruction, restoring proper drainage and resolving the leak.
Completed a full commercial HVAC system changeout, replacing the furnace, condensing unit, evaporator coil, and thermostat, and installing a new Bradford White gas water heater. Reconnected the gas supply with shutoff valves, flue venting, and water supply and drain piping, then verified proper operation of all new equipment.
Performed scheduled maintenance on the furnace, humidifier, and gas water heater under the service agreement. Inspected and cleaned the furnace flame sensor and ignition assembly, confirmed secure mounting, and found no cracks or damage. Vacuumed soot and debris from the water heater burner compartment and base, and noted corrosion on the adjacent steel pipe for monitoring.
Replaced the existing furnace, air conditioning condenser, and evaporator coil with a new matched Carrier system, including a new Ecobee smart thermostat. Installed the new Carrier upflow furnace with a condensate safety switch in the drain pan and connected the galvanized supply plenum and duct transitions, with the 26SCA4 outdoor unit installation documentation completed and left with the equipment. The system was started up and verified for proper operation, with no visible leaks, rust, or damage at completion.
Performed annual maintenance on one furnace and one humidifier, including replacement of the 16x25x1 air filter and inspection of the condensate drain system. Inspected the condensate pump and clear drain trap, noting residue buildup in the trap and staining on the floor below the pump that indicates prior moisture, and verified the pump was powered and operating with its indicator light on.
Performed scheduled maintenance on the gas furnace, air conditioning system, and water heater under the maintenance agreement. Inspected the furnace burner assembly, gas valve, flame sensor, and wiring, verifying stable blue burner flames and proper ignition operation. Inspected the outdoor condenser's electrical compartment, including the run capacitor, contactor, and wiring connections, and documented heavy dust and grime accumulation on the components.
Diagnosed a toilet that was flushing poorly with water backing up through the basement floor drains, indicating a partial blockage in the main drain line. Cleared the obstruction to restore proper drainage, then tested the toilet and floor drains to confirm normal flushing with no further backup.
