At Deljo Heating and Cooling, we have maintained our reputation as the top HVAC and plumbing service provider in Elmwood Park for over 100 years. Our mission is to deliver customer-focused solutions that keep your home or business comfortable year-round. Whether you need heating, cooling, or plumbing services, we are here to meet your needs.
If you need emergency services, such as emergency air conditioning repair in Elmwood Park, call (773) 888-4229. Keep reading to learn about our services in more detail.
Elmwood Park Heating
Ensure your home stays warm and safe through Elmwood Park’s harsh winters with our reliable heating services:
- Furnace Installation: When it’s time to replace your furnace, trust our fully licensed technicians to install a high-quality heating system that meets your needs.
- Furnace Maintenance: Regular furnace maintenance by our expert technicians can extend the life of your furnace and reduce energy costs.
- Furnace Repair: Our 24/7 emergency heating repair services ensure that you’re never left in the cold. We promptly address any heating issues to restore your comfort.
- Boiler Services: From boiler installation to boiler maintenance and boiler repairs, our team handles all your boiler needs to ensure efficient performance throughout the winter.
Elmwood Park Cooling

When the summer heat rises, rely on Deljo Heating & Cooling to keep your home cool and comfortable:
- Air Conditioning Installation: Our licensed technicians provide professional AC installation services, ensuring your system operates efficiently.
- Air Conditioning Maintenance: Routine maintenance can improve your air conditioner’s performance and lower cooling costs by up to 30%.
- Air Conditioning Repair: No need to sweat it if your AC unit breaks down. Our expert technicians are available 24/7 to provide prompt AC repairs.
- Ductless Mini-Split Systems: Ideal for older homes without ductwork, our mini-split systems offer flexible heating and cooling solutions.
Emergency Air Conditioning Repair in Elmwood Park
When the summer heat hits, a malfunctioning air conditioner can quickly turn your home into an uncomfortable space. Deljo Heating and Cooling provides 24/7 emergency AC repair in Elmwood Park. Expect fast and effective solutions to restore your cooling system.
Our experienced technicians are equipped to diagnose and repair all major AC brands and models. Signs you may need emergency AC repair include:
- Insufficient cooling
- Warm air blowing from your vents
- Loud or unusual noises coming from the unit
- Frequent cycling
- System shutting down unexpectedly
- Refrigerant leaks
- Ice buildup on the coils
- Unresponsive thermostat
- Electrical issues
Don’t wait for the problem to worsen. Instead, contact Deljo Heating and Cooling for fast, reliable emergency AC repair in Elmwood Park. We’re here to keep your home cool and comfortable when you need it most.
Plumber in Elmwood Park, IL
Reliable plumbing is essential for maintaining a safe and comfortable home. At Deljo Heating and Cooling, we offer expert plumbing services in Elmwood Park, ensuring your pipes, fixtures, and water systems function efficiently. Whether you have a leaky faucet, clogged drains, or a major plumbing emergency, our licensed plumbers are ready to assist.
Our plumbing services include:
- Emergency Plumbing Repairs: Available 24/7 to perform urgent plumbing repairs and prevent costly damage.
- Drain Cleaning: Clearing stubborn clogs and maintaining smooth water flow.
- Water Heater Services: Installation, repair, and maintenance of traditional and tankless water heaters.
- Whole Home Water Filtration: Whole-home water filters ensure your family has access to clean, safe drinking water.
- Pipe Repair & Frozen Pipe Solutions: Fixture repairs, flood control, and protecting your home from winter plumbing issues like frozen pipes.
- Sump Pump Installation & Maintenance: Sump pump services to prevent basement flooding and water damage.
With our team of experienced professionals, you can trust Deljo Heating and Cooling to handle all your plumbing needs in Elmwood Park with precision and care.
Indoor Air Quality Solutions
The air quality in your home significantly impacts your family’s health. Deljo Heating & Cooling offers advanced air purification systems, including the Carrier Infinity Air Purifier GAPA and the REME HALO® Whole Home In-Duct Air Purifier, to eliminate indoor pollutants and improve your indoor air quality.
Why Choose Deljo for Plumbing, Heating and Cooling in Elmwood Park, IL?
Local Expertise
With deep roots in Chicago since 1922, we understand the unique HVAC needs of Elmwood Park residents and businesses. Our local expertise ensures tailored solutions that perfectly fit your requirements.
Quality Service Guaranteed
We are committed to delivering HVAC services that exceed your expectations. Our NATE-certified technicians use only the highest quality equipment and provide superior service backed by manufacturer warranties.
24/7 Emergency Services
HVAC issues can occur at any time. That’s why we offer round-the-clock emergency services to address your heating and cooling needs immediately.
Contact Us Today for Elmwood Park HVAC Services
Experience what differentiates Deljo from other companies servicing HVAC in Elmwood Park. For all your heating and cooling needs, trust Deljo Heating & Cooling. Call us at (773) 888-4229 or online to schedule an appointment today. Let our expert team keep your home comfortable and safe all year round.
Recent Jobs and Reviews in Elmwood Park, IL
Elmwood Park, IL at a glance
Deljo Heating, Cooling & Plumbing has completed 20 jobs in Elmwood Park, IL between February 2026 and August 2026.
The most recent job was on August 17, 2026.
Job Locations and Reviews
Responded to no cooling complaint on 3-year-old residential air conditioning system. Performed diagnostic evaluation of outdoor condenser unit, which was found to be properly positioned on concrete pad with electrical connections intact. Documented equipment condition through photographic records showing unit exterior, mounting configuration, and electrical service connections for warranty and maintenance tracking purposes.
Completed scheduled maintenance on residential air conditioning system. Inspected evaporator coil assembly, verified proper operation of all electrical components and wiring connections, checked thermostat functionality, and confirmed system cooling performance. Unit found to be in good working condition with no major issues identified.
Responded to no cooling complaint on 1-year-old Carrier Infinity system affecting entire home. Upon inspection, discovered severely clogged air filter restricting airflow to unit. Replaced dirty filter with new filter, restoring proper airflow and system operation. Verified system cooling functionality through thermostat diagnostics, confirming unit running at 100% demand with proper runtime. System returned to normal operation with full cooling capacity restored.
Completed preventative maintenance agreement on single condenser unit. Performed electrical diagnostics using multimeter to verify capacitor microfarad readings at 80.7 MFD, confirming proper operation within manufacturer specifications. Inspected all electrical connections and wiring terminals for secure contact and proper voltage. Checked condenser coil condition and airflow. Media filter replacement not included per agreement terms.
Completed routine air conditioning maintenance inspection per agreement terms. Accessed and inspected blower assembly, confirming squirrel cage fan wheel in clean operational condition with minimal debris accumulation on blades and proper motor shaft alignment. Performed electrical safety procedures at outdoor disconnect box, utilizing lockout/tagout device to ensure technician safety during service. Inspected electrical connections and terminal blocks, verifying secure wire terminations and proper circuit integrity. Documented equipment condition through photography for service records. Unit operating within normal parameters upon completion of maintenance visit.
Performed routine HVAC maintenance agreement service on a residential condensing unit with 16x25x1 filter. Inspected blower wheel assembly, confirming clean condition with no debris accumulation and proper blade alignment. Conducted electrical diagnostics using digital multimeter, recording amperage and voltage readings to verify system performance within manufacturer specifications. All components operating normally with no issues identified during inspection.
Completed preventive maintenance agreement service on Carrier brand outdoor condensing unit. Performed standard inspection of unit components including condenser coils, fan motor assembly, and electrical connections. Installed new 16x25x1 filter as specified in maintenance agreement. Unit found in good operating condition with no visible damage, proper airflow through grille panels, and clean exterior housing. Concrete pad stable with adequate clearance from structure. Documented equipment condition with photographs for service records.
Performed routine AC maintenance on residential condensing unit. Inspected condenser coils, verified electrical connections at disconnect box, checked refrigerant lines, and replaced air filter. Unit operating within normal parameters upon completion.
Completed comprehensive air conditioning maintenance agreement service on outdoor condensing unit and associated system components. Performed thorough inspection of cylindrical condenser unit with horizontal louvered vents, verified proper operation of fan assembly beneath protective grille, checked electrical disconnect box and conduit connections for secure mounting and proper function. Inspected indoor mechanical components including refrigerant lines with insulation wrapping, verified pressure gauge readings within manufacturer specifications, and examined all pipe connections and fittings for integrity. System operating within normal parameters upon completion of maintenance protocol.
Completed preventive maintenance agreement service on residential Carrier furnace system and condenser unit. Inspected HVAC equipment in basement mechanical room, replaced 16x25x1 air filter, and verified proper operation of heating system components. Documented equipment condition with photos showing furnace, ductwork, and associated mechanical systems in functional working order.
Responded to callback for non-operational AC unit with detached humidifier hose. Upon arrival, located disconnected humidifier supply line with brass fittings separated from unit. Reconnected humidifier hose assembly to proper mounting point and verified secure connection at both ends. Inspected humidifier control settings showing 14.5% current humidity reading on digital gauge, with dial positioned between OFF and operational range (15%-35% settings based on outdoor temperature). Tested system operation and confirmed AC unit and humidifier functioning properly with all connections secure.
# Complete HVAC System Replacement Successfully completed full system replacement including furnace, condenser unit, and evaporator coil. Removed existing equipment and installed new matched system components to manufacturer specifications. Performed refrigerant charging and system commissioning using calibrated digital manifold gauges to verify proper pressures and temperatures. Conducted comprehensive system testing to confirm proper operation of all components. System is now operating efficiently with optimal airflow and refrigerant charge verified within manufacturer parameters.
Responded to no cooling complaint on 10+ year old American Standard system with R-410A refrigerant. Performed diagnostic evaluation and discovered upstairs condenser coil showing signs of potential refrigerant leak. Utilized Fieldpiece digital manifold gauges to measure system pressures and confirm low refrigerant charge. Documented equipment model TE31630D175B1605AP and inspected mechanical room installation including furnace, air handler, and associated refrigerant lines. Customer advised of findings and recommended further leak detection testing to determine exact location and extent of coil damage before proceeding with refrigerant recharge.
Responded to no cooling complaint on Carrier rooftop unit. Upon arrival, found thermostat displaying 80°F setpoint while attempting to maintain 72°F in cooling mode. Inspected outdoor condenser unit on roof, which showed clean coil fins and no visible physical damage. Verified unit had power and assessed control board operation. Diagnosed system malfunction preventing proper cooling cycle engagement. Performed necessary repairs to restore cooling function. Cycled system through complete cooling operation to verify proper temperature control. Unit operating within normal parameters upon departure with thermostat successfully maintaining desired temperature setpoint.
Responded to a non-functional boiler following previous thermocouple repair. Inspected the Robertshaw gas valve assembly and electrical components, including the dedicated boiler on/off switch and associated wiring. Restored proper operation by correcting the connection between thermocouple and gas valve.
Returned to install thermocouple on gas valve assembly as part of callback service. Successfully completed installation and verified proper flame operation at all burners, confirming system functionality.
Responded to service call for non-functioning boiler. Inspected aging light blue boiler unit mounted on concrete platform with extensive black piping system. Determined unit has reached end of useful life and requires replacement; customer advised of findings.
Performed HVAC system maintenance and enrolled customer in maintenance agreement program. Conducted diagnostic temperature reading (108.1°F) at supply vent using PDT650 thermometer and inspected control board circuitry, confirming proper electrical connections and component functionality.
Successfully completed installation of a new furnace and humidifier system in the basement utility area. Installed proper ventilation connections including PVC and metal piping with appropriate valves and fittings. Ensured all electrical components were properly wired and the system was fully operational before completing the service.
Responded to no-heat service call for 15-year-old furnace system with no air output from vents. Upon inspection, found motor shaft and blower wheel assembly required cleaning and lubrication. Serviced blower components and verified proper operation, restoring normal airflow through the system.
