Finding reliable HVAC contractors in Chicago, IL matters more here than almost anywhere in the country. Chicago's climate is genuinely extreme in both directions: summers regularly push 90°F with high Lake Michigan humidity, while winters bring polar vortex events with wind chills below −30°F. A heating system failure during a January freeze isn't a comfort issue — it's a safety emergency. Chicago homeowners depend on HVAC contractors who know the local systems, handle both forced-air and hydronic (boiler) heating, and respond when it matters most.
This directory lists HVAC contractors serving Chicago and the greater Chicagoland area, including neighborhoods across the North, South, and West sides, as well as suburbs including Naperville, Arlington Heights, Evanston, Oak Park, and the broader Cook County region. All listings use public business information. Unclaimed profiles are clearly labeled — no contractor has paid to appear here.
Illinois & Chicago HVAC Licensing
HVAC contractor requirements in Illinois can be set by municipalities, so check the rules for the project address. For Chicago work, confirm the contractor and permit requirements with the City of Chicago Department of Buildings; other Illinois jurisdictions may use different local credentials. City of Chicago licensed trade contractor search (Chicago only).
Chicago systems face a substantial heating season and a separate summer cooling load. The National Weather Service's Chicago climate normals document both. Before winter, test the heater and arrange the inspection appropriate to its fuel and equipment type. Before summer, check cooling operation and ask a technician to investigate poor airflow or uneven temperatures. If the home uses a boiler rather than a furnace, request a proposal specific to that system instead of a generic forced-air tune-up. For replacements, compare the heating and cooling load calculations with the proposed equipment.
Start with the Chicago Department of Buildings permit office to confirm the approval and inspection requirements for the address and scope. HVAC contractor requirements in Illinois can be set by municipalities, so check the rules for the project address. For Chicago work, confirm the contractor and permit requirements with the City of Chicago Department of Buildings; other Illinois jurisdictions may use different local credentials. Review the City's construction-code guidance and licensed trade contractor search.
Check the program that matches your utility account: ComEd's heat-pump incentives, Nicor Gas residential rebates, or Peoples Gas home rebates. Gas-utility programs list qualifying furnaces, boilers, and thermostats; ComEd provides electric heat-pump incentives. Confirm equipment and account eligibility with the utility before relying on an incentive in your installation budget.
Neighborhood
AllLincoln ParkWicker ParkLogan SquareHyde ParkBridgeportRogers ParkAndersonvilleNapervilleArlington HeightsEvanston5701 W. 73 St., Chicago, IL 60638
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
5850 N Northwest Hwy, Chicago, IL 60631, USA
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
3504 W Chicago Ave. Chicago, IL 60651
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
5638 N. Elston Ave., Chicago, IL 60646
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
2227 W Fullerton Ave, Chicago, IL 60647
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
4300 W. Bryn Mawr Avenue, Chicago, Illinois 60646
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
4363 W. Montrose Ave, Chicago, IL 60630
HVAC contractor serving the Chicago area with ac repair, air conditioning, heating, furnace services.
6134 N Milwaukee Ave Ste A, Chicago, IL 60646
HVAC contractor serving the Chicago area with air conditioning, heating, furnace, hvac installation services.
3916 N Central Park Ave
HVAC contractor serving Chicago with air conditioning, heating, heat pump and related heating and cooling services.
514 S Arthur Ave
HVAC contractor serving Chicago with furnace repair, ac repair, mini-split ac and related heating and cooling services.
919 N Ashland Ave
HVAC contractor serving Chicago with furnace repair, ac installation, boiler repair and related heating and cooling services.
105 W 61st Street
HVAC contractor serving Chicago with ac repair, furnace repair, heat pump and related heating and cooling services.
5540 W Lawrence Ave
HVAC contractor serving Chicago with furnace repair, heat pump, air conditioning and related heating and cooling services.
8024 St Louis Ave
HVAC contractor serving Chicago with furnaces, air conditioning, ductless systems and related heating and cooling services.
400 East Ogden Ave
HVAC contractor serving Chicago with ac repair, furnace repair, heat pump and related heating and cooling services.
19083 W Casey Road
HVAC contractor serving Chicago with heating repair, cooling repair, duct cleaning and related heating and cooling services.
701 Devon Ave
HVAC contractor serving Chicago with hvac repair, indoor air quality, duct cleaning and related heating and cooling services.
2914 Bernice Ave
HVAC contractor serving Chicago with ac repair, furnace repair, ductless systems and related heating and cooling services.
1150 Frontenac Rd
HVAC contractor serving Chicago with ac repair, furnace repair, heat pump and related heating and cooling services.
3807 N Western Ave
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
4256 N Ravenswood Ave
HVAC contractor serving Chicago with heating repair, boiler repair, radiant floor heating and related heating and cooling services.
1 E Erie St
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
4801 S Knox Ave
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
1913 W 21st St
HVAC contractor serving Chicago with heating, air conditioning, hvac and related heating and cooling services.
1655 S Blue Island Ave
HVAC contractor serving Chicago with heating, air conditioning, commercial hvac and related heating and cooling services.
1100 W Cermak Rd Ste 533
HVAC contractor serving Chicago with heating, air conditioning, commercial hvac and related heating and cooling services.
1655 S Blue Island Ave #4074
HVAC contractor serving Chicago with heating, air conditioning, commercial hvac and related heating and cooling services.
2804 W Belmont Ave STE 106
HVAC contractor serving Chicago with heating, air conditioning, hvac and related heating and cooling services.
5145 S Archer Ave
HVAC contractor serving Chicago with heating, air conditioning, hvac and related heating and cooling services.
3838 W Chicago Ave
HVAC contractor serving Chicago with heating, hvac and related heating and cooling services.
3257 N Sheffield Ave Ste 113
HVAC contractor serving Chicago with heating, air conditioning, indoor air quality and related heating and cooling services.
1016 W Jackson Blvd
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
446 N Western Ave
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
1346 N Greenview Ave
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
1342 N Waller Ave
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
5722 S Wood St
HVAC contractor serving Chicago with heating, air conditioning and related heating and cooling services.
1823 W Belmont Ave
HVAC contractor serving Chicago with heating, stoker heating and related heating and cooling services.
4935 W Fulton St
HVAC contractor serving Chicago with air conditioning, heating and related heating and cooling services.
1440 W Taylor St # 857
HVAC contractor serving Chicago with heating, air conditioning, commercial hvac and related heating and cooling services.
514 S Arthur Ave
IBBOTSON Heating & Air Conditioning Co. is an HVAC contractor in Arlington Heights, IL offering furnace repair, ac repair, mini-split ac and related heating and cooling services.
105 W 61st Street
Hearthstone Heating and Air Conditioning Ltd. is an HVAC contractor in Westmont, IL offering ac repair, furnace repair, heat pump and related heating and cooling services.
2914 Bernice Ave
South Suburban Heating and Air Conditioning is an HVAC contractor in Lansing, IL offering ac repair, furnace repair, ductless systems and related heating and cooling services.
19083 W Casey Road
Thornton Heating Service Inc. is an HVAC contractor in Libertyville, IL offering heating repair, cooling repair, duct cleaning and related heating and cooling services.
1150 Frontenac Rd
Air-Rite Heating & Cooling is an HVAC contractor in Naperville, IL offering ac repair, furnace repair, heat pump and related heating and cooling services.
400 East Ogden Ave
Dutchman Heating & Cooling Inc. is an HVAC contractor in Naperville, IL offering ac repair, furnace repair, heat pump and related heating and cooling services.
701 Devon Ave
Y-tech Heating & Air Conditioning is an HVAC contractor in Park Ridge, IL offering hvac repair, new system installation, preventive maintenance and related heating and cooling services.
8024 St Louis Ave
Shavitz Heating and Air Conditioning is an HVAC contractor in Skokie, IL offering furnaces, boilers, air conditioning and related heating and cooling services.
Jay's HVAC Combustion Specialist LLC is an HVAC contractor in Chicago, IL offering hvac, combustion, commercial hvac and related heating and cooling services.
700 Commerce Dr, Suite 500, Oak Brook, IL 60523
Residential and light commercial heating and cooling contractor based in Oak Brook, serving Chicago and the suburbs with 24/7 furnace, boiler, and air conditioning repair and installation.
1. Confirm the contractor requirements for your address
HVAC contractor requirements in Illinois can be set by municipalities, so check the rules for the project address. For Chicago work, confirm the contractor and permit requirements with the City of Chicago Department of Buildings; other Illinois jurisdictions may use different local credentials. City of Chicago licensed trade contractor search (Chicago only).
2. Require a mechanical permit for any replacement or new installation
Chicago requires a mechanical permit for HVAC replacements and new installations. The licensed contractor pulls the permit through the Chicago Department of Buildings — not the homeowner. Unpermitted HVAC work in Chicago can create serious complications at sale, and Chicago's building inspectors enforce this actively. See our HVAC permits guide.
3. Confirm boiler experience if you have radiant or steam heat
A significant portion of Chicago's older housing stock — especially two-flats, greystones, and buildings constructed before 1960 — uses hot-water or steam boiler systems. Not all HVAC contractors have hydronic heating expertise. Ask directly: "Do you service boilers?" and confirm they've worked on systems like yours. Steam boilers in particular require specific knowledge to service safely.
4. Ask about polar vortex preparedness — backup heat matters
Chicago experiences polar vortex events with temperatures below 0°F and wind chills well below −30°F. If a contractor proposes a heat pump system, confirm it's a cold-climate model rated to at least −13°F and that adequate backup heat is included. A standard air-source heat pump without backup heat is not adequate for Chicago winters.
5. Get a Manual J sizing calculation — don't accept rule-of-thumb sizing
Chicago's heating load is extreme by U.S. standards. Equipment sized for a milder climate may be undersized for Chicago winters. Require a Manual J load calculation on any new installation or replacement. A contractor who sizes by matching the old tonnage or the neighbor's system is cutting a corner that costs you. See ourHVAC system sizing guide.
Chicago sits in IECC Climate Zone 5A — the "Hot-Humid summer, Cold winter" zone at the extreme end. Average January lows reach 16°F; polar vortex events push wind chills to −30°F or below. Average July highs hit 84°F with dew points that make heat index values regularly top 95°F. Few U.S. cities demand this much from both heating and cooling equipment simultaneously.
Gas furnaces remain the dominant heating choice in Chicago for reliability at extreme cold. High-efficiency 95–98% AFUE models are the standard recommendation. Chicago's natural gas infrastructure is mature, and Peoples Gas supplies virtually the entire metro.
Boilers are common in pre-1960 buildings. Chicago's two-flat and three-flat housing stock — one of the densest concentrations of this housing type in the country — frequently uses steam or hot-water boilers. If you're in this type of property, prioritize contractors with demonstrated hydronic experience.
Central air conditioning is standard in most post-1960 construction and in updated older buildings. Window units and ductless mini-splits are common in buildings without existing ductwork. SEER2 minimums for Chicago (Climate Zone 5) differ from southern markets — confirm your contractor quotes equipment that meets current federal minimums for your zone.
HVAC Cost Guide 2026
National price ranges for repair and replacement
How to Hire an HVAC Contractor
12-point checklist before you sign anything
HVAC Permits: When You Need One
What unpermitted work costs you in Chicago
HVAC System Sizing Guide
Why Manual J matters — especially in Climate Zone 5A
HVAC Contractor Scams
10 common tactics and a red-flag checklist
Furnace Not Working?
9 common causes and what to do — critical reading for Chicago winters
Listings on this page use public business information — name, address, phone, website, and services as reported in public directories and company websites. No contractor has paid to appear here. Profiles marked "Unclaimed" have not been verified by the business. To add your business, claim or fix your listing, visit hvaclisting.com/claim or hvaclisting.com/takedown.