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
Houston 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, Houston
The one City Spotlight place for Houston 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
Air Tech of Pasadena
Based in Pasadena, TX · 2915 Preston Ave., Pasadena, TX 77503
Names on its website: Houston, Baytown, League City, Pearland, Sugar Land, Katy, Webster, Humble, Friendswood, Missouri City and more
License number shown on its website: HVAC: TACLB116317E
Air-Ton Heating & AC
Based in Houston, TX · 4102 Dawn, Houston, TX 77025
Names on its website: Bellaire, Braeswood Place, Briar Forest, Hyde Park, Montrose, Memorial, Meyerland, Midtown, Rice Village, River Oaks and more
License number shown on its website: TACLB146256E
Allgood Air Conditioning & Heating
Based in Pasadena, TX · 415 Houston Ave UNIT C, Pasadena, TX
ASAP AIR AC and Heating
Based in Houston, TX · 1009 Aurora St., Houston, TX 77009
Names on its website: Bellaire, Bunker Hill, Champions, Hedwig Village, Hilshire Village, Jersey Village, Montrose, River Oaks, West University Place, Hunters Creek Village and more
License number shown on its website: LIC# TACLB021942E
Barrett's Heating & Air Conditioning LLC
Based in La Porte, TX · 208 E Main St., La Porte, TX 77571
Names on its website: Baytown, Channelview, Crosby, Deer Park, Dickinson, El Lago, Friendswood, Highlands, Kemah, League City and more
License number shown on its website: TACLB21174E
Bellaire Air Conditioning
Based in Houston, TX · 5414 Ashbrook Dr, Houston, TX 77081
Names on its website: Afton Oaks, Bellaire, Braeswood Place, Cinco Ranch, Houston Heights, Katy, River Oaks, Stafford, Sugar Land, Texas Medical Center and more
Bruce Mech Air Conditioning and Heating
Based in Spring, TX · 22600 Interstate 45N Suite 180, Spring, TX 77373
Names on its website: Conroe, Cypress, Huntsville, Humble, Katy, Magnolia, Tomball
License number shown on its website: TACLB3550E
Cool Care Heating and Air Conditioning
Based in Houston, TX · 2015 Bauer Dr, Houston, TX 77080
Names on its website: Bellaire, Cypress, Jersey Village, Katy, Piney Point Village, West University Place
License number shown on its website: TACLA022232E
Courtesy Air Conditioning & Heating
Based in Houston, TX · 1950 Eldridge Pkwy, Houston, TX 77077
Names on its website: Katy, Sugar Land
License number shown on its website: TACLB8060E
Dalton Air Conditioning and Heating LLC
Based in Pearland, TX · 5410 Brookside Rd, Pearland, TX 77581
Names on its website: Alvin, Brookside Village, Fresno, Friendswood, League City, Manvel, Missouri City, Rosharon, Sugar Land, Webster and more
License number shown on its website: TACLA24546
G&P Mechanical Inc.
Based in Stafford, TX · 13004 Murphy Rd. Suite #232, Stafford, TX 77477
Names on its website: Sugar Land, Missouri City, Houston, Sienna Plantation
Goode Air Conditioning & Heating, Inc.
Based in Humble, TX · 219 Derrick Dr, Humble, TX 77338
Names on its website: Atascocita, Huffman, Kingwood, New Caney, Porter, Summerwood
License number shown on its website: TACLA1329C
Lester Air Conditioning
Based in Deer Park, TX · 1001 Center St, Deer Park, TX 77536
Names on its website: Baytown, Channelview, Clear Lake, La Porte, Pasadena, Seabrook
License number shown on its website: TACLB2774
McCann Services, Inc.
Based in Houston, TX · 7400 Ashcroft Drive, Houston, TX 77081
Names on its website: Bellaire, Katy, Sugar Land, Missouri City, Spring Valley Village, Memorial, The Heights, West University Place, River Oaks, Tanglewood and more
License number shown on its website: TACLA000410C
P & M Air Conditioning and Heating
Based in Houston, TX · 6734 Rupley Circle, Houston, TX 77087
Names on its website: Bellaire, Friendswood, Pearland, West University
License number shown on its website: TACLA27684, TACLA8987
Payless Cooling & Heating
Based in Pearland, TX · 1416 North Main Street #200, Pearland, TX 77581
Names on its website: Houston, Friendswood, Missouri City, Sugar Land
License number shown on its website: TACLA22850E
Preferred Home Services
Based in Friendswood, TX · 4031 Ellis Rd. Suite 200, Friendswood, TX 77546
Names on its website: Alvin, Bacliff, Baytown, Channelview, Deer Park, Dickinson, Fresno, Galena Park, Hitchcock, Houston and more
License number shown on its website: #TACLB108588E
Ready Air
Based in Houston, TX
Names on its website: Bellaire, Katy, West U, Medical Center, Meyerland, Heights
Smart Air (Houston Smart Air Cooling and Heating)
Based in Houston, TX · 12455 Westpark Drive, Unit G3, Houston, TX 77082
Names on its website: Katy, Bellaire, Sugar Land, Memorial, River Oaks, Spring, The Heights, Montrose, Cypress, Westchase and more
License number shown on its website: TACLB48205E
Stalwart Air Conditioning and Heating Services
Based in Pearland, TX · 2817 Miller Ranch Ste 337, Pearland, TX 77584
Names on its website: Webster, Missouri City, Clear Lake, Sugar Land, Friendswood, League City, Alvin, Rosharon, Spring, Katy and more
License number shown on its website: TACLA00042992C
Sun Air Conditioning & Heating
Based in Sugar Land, TX · 2245 Texas Drive #300, Sugar Land, TX 77479
Names on its website: Stafford, Richmond, Houston, Missouri City, Greatwood, Sienna Plantation, Rosenberg, Katy, Bellaire, Needville and more
License number shown on its website: TACLB000483C; TACLA00128543C
The Lee Thompson Co.
Based in Houston, TX · 1718 Elmview Dr, Houston, TX 77080
Names on its website: Alief, Alvin, Bellaire, Channelview, Cinco Ranch, Cleveland, Crosby, Cypress, Deer Park, Friendswood and more
License number shown on its website: TACLA2337C
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 Houston area
HVAC licenses in Texas
HVAC contractors are licensed by the state.
Who licenses: Texas Department of Licensing and Regulation (TDLR), Air Conditioning and Refrigeration Contractors program
License types: Air Conditioning and Refrigeration Contractor License, Class A, Air Conditioning and Refrigeration Contractor License, Class B, Registered Technician, Certified Technician.
Companies: Under Texas Occupations Code Chapter 1302 (section 1302.251), a person may not engage in air conditioning and refrigeration contracting without a TDLR contractor license; Class A covers any size system and Class B covers cooling up to 25 tons and heating up to 1.5 million BTU/hour.
Local rules: A licensed contractor must give notice to the municipality that enforces air conditioning and refrigeration rules (Occupations Code 1302.262), and cities may charge an administrative fee and require permits.
Check a license: tdlr.texas.gov
Look up the company's ACR contractor license number on the TDLR license search and make sure it is active and shown on the contract and ads.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: tdlr.texas.gov, tdlr.texas.gov, tdlr.texas.gov, tdlr.texas.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
Keeping cool in Houston
Cooling season is the long one in Houston, so most of the wear falls on the air conditioner or heat pump. These guides cover the care that prevents most summer breakdowns.
Questions
Houston HVAC questions
How many HVAC companies are listed in Houston?
22 HVAC companies, each based within about 25 miles of Houston. They are listed alphabetically.
Which Houston HVAC companies say they offer 24/7 emergency service?
10 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: Air Tech of Pasadena, Allgood Air Conditioning & Heating, Barrett’s Heating & Air Conditioning LLC, Bruce Mech Air Conditioning and Heating, Goode Air Conditioning & Heating, Inc., McCann Services, Inc., P & M Air Conditioning and Heating, Payless Cooling & Heating, Stalwart Air Conditioning and Heating Services, The Lee Thompson Co.. Call to confirm availability and after-hours rates.
Do HVAC contractors in Houston need a license?
Texas licenses HVAC contractors statewide through the Texas Department of Licensing and Regulation (TDLR), Air Conditioning and Refrigeration Contractors program. Check a license at tdlr.texas.gov.
Which Houston 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?
16 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: Dallas, TX · San Antonio, TX · Austin, TX · Oklahoma City, OK · New Orleans, LA · Albuquerque, NM · Little Rock, AR · El Paso, TX. All of Texas.
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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.