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
Chattanooga 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, Chattanooga
The one City Spotlight place for Chattanooga 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
Action Air
Based in Hixson, TN · 7605 Hixson Pike, Hixson, TN 37343
Names on its website: Chattanooga, Cleveland, Collegedale, East Ridge, Fort Oglethorpe, Ooltewah, Red Bank, Signal Mountain, Soddy Daisy
License number shown on its website: CE, CMC-C | Tennessee License #34663
Air 911 Heating and Cooling LLC
Based in Chattanooga, TN · 4295 Cromwell Road Suite 528, Chattanooga, TN 37421
Names on its website: Red Bank, Cleveland, Signal Mountain, Walden, Middle Valley, East Ridge, Hixson, Soddy-Daisy, Ooltewah, Ringgold
License number shown on its website: TN-53170, AL-23182, SC-117295
Air Comfort HVAC
Based in Ringgold, GA · 11 S Commerce Dr, Ringgold, GA 30736
Names on its website: Dalton, Chattanooga, East Ridge, Fort Oglethorpe, Harrison, Hixson, Rocky Face, Cleveland
License number shown on its website: GA: CN211401; TN: 85767
Air Heat
Based in Chickamauga, GA
Names on its website: Fort Oglethorpe, Ringgold, East Ridge
License number shown on its website: LICENSED IN GA: CN210158
AirSystems Unlimited, LLC
Based in Cleveland, TN · 1713 South Lee Highway, Cleveland, TN 37311
Names on its website: Apison, Birchwood, Chattanooga, Collegedale, Georgetown, Harrison, Hixson, Lookout Mountain, McDonald, Ooltewah and more
Bailey's Heating & Air
Based in Fort Oglethorpe, GA · 1475 Cross St., Fort Oglethorpe, GA 30742
Names on its website: Chattanooga, Jasper, Rossville, Dalton, Calhoun, Cleveland
License number shown on its website: Georgia: CR108739; Tennessee: 48519
Bell Heating & Air, LLC
Based in Chattanooga, TN
Names on its website: Hixson, Red Bank, Harrison, Soddy Daisy, Lakesite, East Ridge, East Brainerd, Cleveland, Dunlap
Dale's Heating & Air, Inc.
Based in Chattanooga, TN · 2131 Polymer Drive, Chattanooga, TN 37421
Names on its website: Apison, Charleston, Cleveland, Collegedale, Georgetown, Harrison, Hixson, McDonald, Ooltewah
DynaMech Heating, Cooling, Electrical & Plumbing
Based in Cleveland, TN · 1195 Old Chattanooga Pike SW, Cleveland, TN 37311
Names on its website: Chattanooga, Ooltewah
Eldridge Service Company
Based in Chattanooga, TN · 2605 East 30th St., Chattanooga, TN 37407
Names on its website: Chickamauga, Cleveland, Dalton, Fort Oglethorpe, Hixson, Lafayette, Lookout Mountain, Ooltewah, Red Bank, Ringgold and more
General Heating & Air Conditioning Co Inc
Based in Chattanooga, TN · 6501 Lee Highway, Suite 110, Chattanooga, TN 37421
Names on its website: Apison, Cleveland, Dalton, East Brainerd, Flintstone, Fort Oglethorpe, Lafayette, Ooltewah, Ringgold, Soddy Daisy and more
Keith Heating and Air
Based in Rossville, GA · 445 Schmitt Road, Rossville, GA 30741
Names on its website: Lakeview, Chickamauga, Chattanooga Valley, East Ridge, Fort Oglethorpe, Ringgold, Brainerd, Chattanooga
Malone Heat & Air, Inc.
Based in Ringgold, GA
Names on its website: Chattanooga, East Ridge, Soddy-Daisy, Ooltewah, Fort Oglethorpe, LaFayette, Chickamauga, Hixson, Signal Mountain, Harrison and more
Maximum Heating & Air
Based in Chattanooga, TN · 5113 Highway 58, Ste A1, Chattanooga, TN 37416
Names on its website: Cleveland, Soddy Daisy, Red Bank, Brainerd, East Ridge, Harrison, East Brainerd, Ooltewah, McDonald, Apison and more
Metro Plumbing, Heating and Air
Based in Chattanooga, TN · 8988 Fuller Rd, Chattanooga, TN 37421
Names on its website: East Brainerd, Ringgold, Collegedale, Harrison, Hixson, Signal Mountain, Cleveland, Red Bank, East Ridge
Mountain City Service
Based in Chattanooga, TN
Names on its website: Signal Mountain, Walden, Fairmount, Red Bank, Falling Water
Neal's Heating & Air
Based in Lafayette, GA · 814 N. Main St., Lafayette, GA 30728
Names on its website: Rock Spring, Chickamauga, Ringgold, Dalton, Fort Oglethorpe, Rossville, Chattanooga
One Source Heating, Cooling, Plumbing & Electrical
Based in Chattanooga, TN · 3976 Hixson Pike, Chattanooga, TN 37415
Names on its website: North Georgia
License number shown on its website: Chattanooga HVAC TN Lic #83651
Patriot Services
Based in Chattanooga, TN · 6113 Airways Blvd, Chattanooga, TN 37421
Names on its website: Lookout Mountain, Signal Mountain
License number shown on its website: TN 73064; CN211396 (GA)
Rivertech Heating & Air Conditioning
Based in Chattanooga, TN · 6477 East Brainerd Rd, Chattanooga, TN 37421
Names on its website: East Brainerd, Red Bank
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 Chattanooga area
HVAC licenses in Tennessee
Licensing is split between the state and local governments.
Who licenses: Tennessee Board for Licensing Contractors, Department of Commerce and Insurance
License types: CMC-C (HVAC, Refrigeration and Gas Piping; Solar HVAC (Geothermal)), CMC (Full mechanical contracting classification).
Companies: Under Tenn. Code Ann. Title 62, Chapter 6, contractors on projects of $25,000 or more, including mechanical and HVAC work, must hold a Board-issued contractor license with the matching classification (CMC-C covers HVAC and refrigeration).
Local rules: Most HVAC projects under $25,000 are regulated locally, and cities and counties may issue their own mechanical or journeyman HVAC licenses (some counties also require a Home Improvement license).
Check a license: search.cloud.commerce.tn.gov
Search the company on the state license lookup for jobs of $25,000 or more, and for smaller jobs call your city or county codes office to learn what local HVAC license applies.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: tn.gov, tn.gov, tn.gov, support.commerce.tn.gov. Checked October 2026 from official sources. This is not legal advice.
HVAC licenses in Georgia
HVAC contractors are licensed by the state.
Who licenses: Georgia State Board of Conditioned Air Contractors (State Construction Industry Licensing Board, Secretary of State)
License types: Conditioned Air Contractor Class I (restricted), Conditioned Air Contractor Class II (unrestricted).
Companies: Georgia requires a state conditioned air contractor license (O.C.G.A. Title 43, Chapter 14) to perform conditioned air contracting, and the board says you may not perform services until you hold an active license. Under Board rules (Ga. Comp. R. & Regs. ch. 121), Class I is restricted to systems not exceeding 175,000 BTU of heating and 60,000 BTU of cooling and Class II is unrestricted.
Local rules: Local business license and permit rules were not confirmed here.
Check a license: goals.sos.ga.gov
Search the contractor on the Secretary of State's GOALS licensee search and confirm an active Conditioned Air Class I or Class II license that covers the size of system being installed.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: sos.ga.gov, sos.ga.gov, sos.ga.gov, rules.sos.ga.gov. 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
Year-round care in Chattanooga
Chattanooga homes lean on both heating and cooling, so each system needs a check before its season: cooling in spring, heating in fall.
Questions
Chattanooga HVAC questions
How many HVAC companies are listed in Chattanooga?
20 HVAC companies, each based within about 35 miles of Chattanooga. They are listed alphabetically.
Which Chattanooga HVAC companies say they offer 24/7 emergency service?
8 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: General Heating & Air Conditioning Co Inc, Keith Heating and Air, Malone Heat & Air, Inc., Metro Plumbing, Heating and Air, Mountain City Service, Neal’s Heating & Air, One Source Heating, Cooling, Plumbing & Electrical, Patriot Services. Call to confirm availability and after-hours rates.
Do HVAC contractors in Chattanooga need a license?
In Tennessee, licensing is split between the state and local governments. Check a license at search.cloud.commerce.tn.gov.
Which Chattanooga companies work on heat pumps?
15 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?
15 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: Atlanta, GA · Charlotte, NC · St. Louis, MO · Kansas City, MO · Nashville, TN · Virginia Beach, VA · Raleigh, NC · Louisville, KY. All of Tennessee.
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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.