Published on: July 4, 2025

Last updated: August 2025

Top Chicago HVAC Companies

Chicago’s four-season reality is no joke: polar-vortex snaps send wind chills below zero, lake-effect humidity makes summer feel tropical, and shoulder seasons swing 30°F in a day. That volatility stresses equipment—and budgets—unless your system is sized, installed, and maintained by a pro who knows Chicago housing stock. From steam-boiler two-flats and 1920s bungalows with leaky ducts to tight new infills and high-rise condo RTUs, the right contractor will balance comfort, efficiency, and code compliance while navigating permits, utility rebates, and building rules.

Choosing wisely pays for itself. Top Chicago HVAC companies run Manual J/S/D calculations (not guesswork), right-size furnaces and heat pumps, seal and balance ductwork, and design humidity control for both seasons (humidifiers for winter, whole-home dehumidification for summer). They also understand combustion safety (make-up air, chimney liners after high-efficiency swaps, CO monitoring), condo board requirements, and the City of Chicago inspection cadence. Thinking electric? Cold-climate heat pumps and dual-fuel setups can cut gas usage dramatically—if the design accounts for Chicago’s 99% design temps.

Don’t leave performance or rebates on the table. Ask about incentives from ComEd and local gas utilities, and federal tax credits for qualifying high-efficiency equipment, heat pumps, and envelope improvements. Pros will flag long-lead items (condensers, smart thermostats), plan around extreme-weather service demand, and provide clear warranties (parts and labor), so there are no surprises in January or July.

Here’s a quick Chicago HVAC hiring checklist to use before you request bids:

Credentials: Illinois/Chicago license, liability & workers’ comp; NATE- or factory-certified techs.
Load & design: Written Manual J (load), Manual S (equipment), Manual D (ducts) for replacements—especially if changing fuel type.
Scope clarity: Line-item estimate with model numbers, SEER2/HSPF2/AFUE ratings, thermostat, pads/stands, permits, crane/roof fees if needed.
Home performance: Plan for duct sealing, balancing, filtration (MERV-13 where feasible), ERV/HRV options, and humidity control.
Combustion safety: CO testing, combustion analysis, liner/makeup-air details for gas appliances.
Rebates & paperwork: Who files utility rebates, registrations, warranties, and permits?
Commissioning & QA: Startup checklist (static pressure, refrigerant charge, airflow, delta-T), photos, and homeowner training.
Service & warranty: Labor warranty terms, emergency response times, and maintenance plan pricing.
References: Tour an active job or speak with clients in a similar home/condo type.

Businesses marked are featured.

Chicago HVAC Companies

Compare Chicago’s top HVAC companies for energy-efficient installs, fast repairs, and 24/7 emergency service—websites, phone numbers, and addresses included.

Four Seasons Heating

(866) 444-2404
5701 W 73rd St., Chicago, IL 60638

As the largest Chicago HVAC company, Four Seasons delivers full-service heating, cooling, plumbing, and electrical work backed by 50 + years of “No Extra Charge” reliability across Chicagoland.

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Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
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All Temp Heating & Air Conditioning

(866) 693-2009
‍4363 W Montrose Ave., Chicago, IL 60641

Family-owned since 1938, this trusted Chicago HVAC contractor pairs generations of expertise with high-efficiency Bryant equipment to keep North Side homes comfortable while trimming utility bills.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
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Deljo Heating & Cooling

(773) 829-4295
4300 W Bryn Mawr Ave., Chicago, IL 60646

Founded in 1922, Deljo’s Chicago HVAC team specializes in residential comfort, blending century-old craftsmanship with modern smart-thermostat integrations for ultra-precise climate control.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
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Polar Heating & Air Conditioning

(708) 260-8855
13801 Southwest Hwy., Orland Park, IL 60462

Serving city and suburbs, Polar’s Chicago HVAC experts offer price-match guarantees, long labor warranties, and quick installs that beat the heat—or cold—without breaking the bank.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
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Compass Heating and Air Conditioning Inc.

(630) 504-8688
‍1051 E Main St., East Dundee, IL 60118

A Mitsubishi Diamond Contractor, Compass delivers high-efficiency ductless and heat-pump solutions to greater Chicago HVAC markets, tailoring comfort for lofts, vintage homes, and new builds alike.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
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Heating and cooling Chicago
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Air-Rite Heating & Cooling, Inc.

(630) 966-8100
1150 Frontenac Rd., Naperville, IL 60563

This third-generation Chicago HVAC company combines 60 + years of experience with ACCA-certified technicians to deliver precision installs and thorough comfort audits.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
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Heatmasters Heating & Cooling

(773) 777-5700
‍5540 W Lawrence Ave., Chicago, IL 60630

Operating since 1950, Heatmasters’ Chicago HVAC technicians focus on furnace efficiency and air-quality solutions, backed by their signature Masters Maintenance Program.

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Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
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A Custom Services, Inc.

(773) 539-8175
2929 N Neenah Ave., Chicago, IL 60634

Licensed and bonded, A Custom Services provides Chicago HVAC repair plus boiler care and retrofits, earning kudos for fast turnarounds and clear, upfront pricing.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
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Hero Air

(224) 433-0425
4823 W Patterson Ave. #2, Chicago, IL 60641

Five-star-rated Hero Air delivers Chicago HVAC installs and repairs with customer-first financing, ensuring comfort solutions fit every budget without sacrificing quality.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
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Heating and cooling Chicago
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Integrity Heating & Cooling, Inc.

(888) 996-4754
‍19450 97th Ave., Mokena, IL 60448

With Lennox Premier status and a 100 % Satisfaction pledge, Integrity Heating & Cooling serves the Chicago HVAC market, delivering eco-friendly installs, transparent pricing, and dependable support.

Chicago HVAC installation
Chicago HVAC repair
Energy-efficient HVAC
HVAC maintenance Chicago
Heating and cooling Chicago
Air conditioning Chicago

Selecting the right Chicago HVAC contractor isn’t just about surviving the next heat wave—it’s about building a system that delivers healthy air, low utility bills, and stress-free ownership for the next 10–15 years. Start by gathering model/serial numbers of your current equipment, photos of the mechanical area and ductwork, and any comfort issues by room. Request apples-to-apples proposals with model numbers and efficiency ratings (SEER2/HSPF2 for heat pumps, AFUE for furnaces), plus a copy of the Manual J/S/D results and a commissioning checklist (refrigerant charge, static pressure, airflow, combustion analysis).

Before signing, confirm who pulls permits, files utility rebates (e.g., ComEd and local gas programs), registers warranties, and schedules inspections—then nail down labor-warranty terms and emergency response times. For older masonry homes, ask about chimney liner needs and make-up air; for condos, clear building rules on condenser placement, riser access, and work hours. If you’re exploring electrification, press for a cold-climate heat-pump option or dual-fuel strategy with published low-temp performance (COP at 5°F) and dehumidification plans for July.

Lock in comfort with a maintenance cadence: filter changes every 1–3 months, spring AC tune-ups, fall heat checks, humidifier pad swaps, and annual coil/condensate service. Consider IAQ upgrades (MERV-13 filtration where ducts allow, ERV for fresh air, spot dehumidifiers) to elevate health and resale value. Do these things—and partner with one of the vetted firms above—and you’ll get more than hot-and-cold on demand. You’ll secure a system that’s quiet, efficient, code-compliant, and ready for Chicago’s next polar vortex and its next 95°F lake-breeze scorcher.

Disclosure: This list is intended as an informational resource and is based on independent research and publicly available information. It does not imply that these businesses are the absolute best in their category. Learn more here.

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