No heat or no cooling right now?
If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside. Otherwise, call a company below that says it takes emergency calls. Quick checks first: AC not cooling · furnace not working.
The list
Chicago HVAC companies, A to Z
Filter by what each business says on its own website. “Says 24/7 emergency” means its site says so – call to confirm before you rely on it.
Your HVAC company, Chicago
The one City Spotlight place for Chicago sits here, above the A to Z list. Requests sent from this page for areas the Spotlight company serves go to it. Offered only to companies that pass our listing rules. How it works
A Perfect Climate Inc.
Based in Addison, IL · 719 W Fullerton Ave B, Addison, IL 60101
Names on its website: Arlington Heights, Des Plaines, Downers Grove, Elmhurst, Hoffman Estates, Lombard, Melrose Park, Mount Prospect, Oak Park, Palatine and more
Berwyn Western
Based in Westmont, IL · 804 Burr Oak Dr, Westmont, IL 60559
Names on its website: Berwyn, Downers Grove, Elmhurst, Oak Park, Naperville, LaGrange, Darien, Hinsdale, Western Springs
Besco Air Inc. Heating & Cooling
Based in Chicago, IL · 5850 N Northwest Hwy, Chicago, IL 60631
Names on its website: Evanston, Skokie, Park Ridge, Oak Park, Northbrook, Glenview, Des Plaines, Niles, Wilmette
Bestway Heating Co.
Based in Evergreen Park, IL · 3001 W 87th St, Evergreen Park, IL 60805
Names on its website: Chicago, Southwest Suburbs
Citywide Supply and Service
Based in Chicago, IL · 6101 W Montrose Ave, Chicago, IL 60634
EconoTemp Inc.
Based in Downers Grove, IL · 2717 Curtiss St, Downers Grove, IL 60515
Names on its website: Naperville
License number shown on its website: 133770
Energy Matters
Based in Oak Park, IL · 41 Chicago Ave, Oak Park, IL 60302
Names on its website: Berwyn, Brookfield, Chicago, Elmhurst, Elmwood Park, Forest Park, River Forest, Riverside
Energy Services Air Conditioning and Heating Company
Based in Elmhurst, IL · 510 Spring Rd #1, Elmhurst, IL 60126
Names on its website: Naperville
License number shown on its website: HVAC: #CAC1813726
Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric
Based in Chicago, IL · 5701 W 73rd St, Chicago, IL 60638
License number shown on its website: IL: 055-042791, IN: CO51300002
Heatmasters Heating & Cooling
Based in Chicago, IL · 5540 W Lawrence Ave, Chicago, IL 60630
Names on its website: Park Ridge, Evanston, Skokie, Glencoe, Glenview, Harwood Heights, Norridge
Home Comfort Services, Inc.
Based in Des Plaines, IL · 500 E Touhy Ave H, Des Plaines, IL 60018
Names on its website: Arlington Heights, Evanston, Glenview, Highland Park, Morton Grove, Mount Prospect, Niles, Palatine, Park Ridge, Skokie and more
House of Heat
Based in Oak Park, IL · 334 W Harrison St, Oak Park, IL 60304
License number shown on its website: Licensed and bonded (no number shown)
KTS Heating and Cooling Inc.
Based in Chicago, IL · 4256 N Ravenswood Ave, Chicago, IL 60613
Master Mechanical
Based in Mount Prospect, IL · 119 S Emerson St Suite 327, Mount Prospect, IL 60056
Names on its website: Arlington Heights, Buffalo Grove, Des Plaines, Elk Grove Village, Glenview, Northbrook, Palatine, Prospect Heights, Rolling Meadows, Wheeling
My Guy HVAC, Inc.
Based in Chicago, IL · 6134 N Milwaukee Ave Ste A, Chicago, IL 60646
Names on its website: Evanston, Skokie, Lincolnwood, Norridge, Harwood Heights
Oasis Plumbing, Heating & Cooling
Based in Chicago, IL · 5736 N Western Ave, Chicago, IL 60659
Names on its website: Skokie, Elmhurst, Lombard, Addison, Wilmette, Winnetka, Northlake
Polar Heating & Air Conditioning
Based in Orland Park, IL · 13801 Southwest Hwy, Orland Park, IL 60462
Names on its website: Chicago, LaGrange, South Holland, New Lennox, Joliet, Plainfield, Naperville, Aurora, Lake Forest, Hammond
Shavitz Heating and Air Conditioning
Based in Skokie, IL · 8024 St Louis Ave, Skokie, IL 60076
Names on its website: Chicago, Evanston, Glencoe, Glenview, Highland Park, Northbrook, Park Ridge, Wilmette, Winnetka, Lincolnwood
License number shown on its website: 1698271
Top Air Solutions
Based in Glenview, IL · 1975 N Lake Terrace, Glenview, IL 60026
Names on its website: Addison, Arlington Heights, Buffalo Grove, Deerfield, Des Plaines, Elk Grove Village, Northbrook, Oak Brook, Palatine, Schaumburg
Universal HVAC Group Inc
Based in Chicago, IL · 6000 N Northwest Hwy, Chicago, IL 60631
Names on its website: Skokie, Evanston, Lincolnwood, Morton Grove, Niles, Park Ridge, Des Plaines, Schaumburg, Highland Park, Arlington Heights and more
Unlimited Heating & Cooling, Inc.
Based in Elmhurst, IL · 185 N York St Rear, Elmhurst, IL 60126
Names on its website: Villa Park, Lombard, Downers Grove, Addison, Bensenville, Westchester, Hillside, Northlake, Burr Ridge
Y-tech Heating & Air Conditioning
Based in Park Ridge, IL · 701 Devon Ave, Park Ridge, IL 60068
Names on its website: Arlington Heights, Chicago, Des Plaines, Evanston, Glenview, Mount Prospect, Niles, Oak Park, River Forest, Skokie
Details on this page come from each business’s own website, checked October 2026. Free listings are shown alphabetically. How we list · Update or remove a listing
Before you hire
Checking an HVAC company in the Chicago area
HVAC licenses in Illinois
There is no statewide HVAC contractor license that we could find; cities or counties license HVAC work.
Local rules: We could not find a statewide HVAC or mechanical contractor license in Illinois: the Illinois Department of Financial and Professional Regulation's list of regulated professions does list trades such as roofing contractors but shows no heating, air conditioning or refrigeration contractor category. Licensing appears to be set by individual cities. The City of Springfield issues residential and commercial mechanical licenses (five years of experience for residential, seven for commercial, plus the ICC Master Mechanical exam, under Springfield Mechanical Ordinance Chapter 173); its mechanical contractor registration also needs a $5,000 surety bond in favor of the city. Chicago Municipal Code section 4-4-322 lets the Commissioner of Buildings suspend or revoke the license, registration or certification of a person providing construction services relating to heat, ventilation, air conditioning or refrigeration systems, which indicates Chicago has such a credential, but we could not open the Chicago Department of Buildings licensing pages (access was blocked) and so could not confirm the license names or requirements. Rules in other Illinois cities and counties were not checked.
Ask the contractor for the mechanical or HVAC license issued by your city or village (or county, if you are unincorporated), confirm it with that building department, and check that the permit is pulled in the contractor's name.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
We could not confirm every detail from Illinois’s own sources, so treat this as a starting point and check with the agency.
Sources: idfpr.illinois.gov, idfpr.illinois.gov, codelibrary.amlegal.com, springfield.il.us. Checked October 2026 from official sources. This is not legal advice.
Questions to ask
Ask every company the same questions: license number, insurance, EPA refrigerant certification, a written itemized estimate, a load calculation for new equipment, after-hours rates, who pulls the permit, and the warranty. All eight questions.
Seasonal care
Getting through a Chicago winter
Heating season is the long one in Chicago, so the furnace, boiler or heat pump does most of the work. Start with these before the first cold snap – and keep carbon monoxide alarms working.
Questions
Chicago HVAC questions
How many HVAC companies are listed in Chicago?
22 HVAC companies, each based within about 25 miles of Chicago. They are listed alphabetically.
Which Chicago HVAC companies say they offer 24/7 emergency service?
16 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: A Perfect Climate Inc., Berwyn Western, Besco Air Inc. Heating & Cooling, Bestway Heating Co., Citywide Supply and Service, Energy Services Air Conditioning and Heating Company, Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric, Heatmasters Heating & Cooling, Home Comfort Services, Inc., House of Heat, KTS Heating and Cooling Inc., Master Mechanical and others. Call to confirm availability and after-hours rates.
Do HVAC contractors in Chicago need a license?
In Illinois, HVAC work is licensed by cities or counties rather than the state – ask the local building department.
Which Chicago companies work on heat pumps?
14 of the listed businesses say on their own website that they install or repair heat pumps. Use the Heat pumps filter above the list.
Which HVAC companies here do commercial work?
20 of the listed businesses say on their own website that they work on commercial properties. Use the Commercial filter above the list.
Do technicians need EPA certification?
Yes: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification, in every state. Ask any company you are considering.
Nearby metro areas: St. Louis, MO · Kansas City, MO · Indianapolis, IN · Milwaukee, WI · Louisville, KY · Des Moines, IA · Madison, WI · Cedar Rapids, IA. All of Illinois.
Request an HVAC company
Ask us to find an HVAC company in Chicago
Tell us the job and your ZIP code. We pass your request to listed companies that serve your area, and they contact you directly.
No heat in freezing weather, or no cooling in dangerous heat? Call a company from the list that says it takes emergency calls – a form is not fast enough. If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside.