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10 Best HVAC Companies in Houston, TX

The best HVAC companies in Houston include Air Tech of Houston for 24-hour AC, plumbing and generator work, Mission Air Conditioning & Plumbing for vetted technicians, and All Star A/C for long warranties in the northwest. Bellaire Air Conditioning and The Lee Thompson Co bring more than 55 years of family history each, while Ace Comfort and Cool Care stand out for transparent pricing. Every company here holds at least 4.7 stars from 200 or more Google reviews.

  • Last reviewed September 2026
  • 10 companies reviewed · How We Rank

Our top 10 hvac companies in Houston

In Houston, the air conditioner is the most important appliance in the house. Summers stretch from May into October with heat indexes well above 100 degrees, humidity stays high most of the year, and a system that fails in August can make a home unlivable within hours. Hurricane season adds power outages, and the region's clay soil and older ductwork keep repair crews busy. This list covers ten HVAC companies that rank near the top of Google Maps for Houston and hold at least a 4.7 rating from 200 or more reviews. We checked every high-ranking result and removed listings with warning signs such as template websites or vague reviews. The ten below range from a 1961 family firm to owner-led shops with a loyal following, and several also handle plumbing and electrical work. A few checks apply to any contractor in Texas. HVAC companies must hold an air conditioning contractor license from the Texas Department of Licensing and Regulation, and you can look the number up online. Ask for written quotes with model numbers, check what the labor warranty covers, and find out whether the company is available overnight and on Sundays before you need it.

  1. Air Tech of Houston AC & Plumbing

    Best for 24-hour service4.8(6520 Google reviews)2114 Lou Ellen Ln, Houston, TXBest for round-the-clock AC, plumbing and electrical service from one licensed company    Rank01

    Why we picked them

    Tops Google's Houston results with 4.8 from 6,520 reviews and round-the-clock service since 1985.

    What we like

    • Published Texas licenses
    • AC, plumbing, electrical and generators
    • 6,500+ Google reviews

    Things to consider

    • Warranty terms not published

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Heat pump installation
    • Maintenance plans

    Key details

    Best for
    round-the-clock AC, plumbing and electrical service from one licensed company
    Service area
    Houston
    Years in business
    41 years
    Warranty
    100% satisfaction guarantee, plus 100% Money Back, No Surprise, Property Protection, Comfort, Utility Savings, $500 Installation Date, $500 No Frustration and No Lemon guarantees
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  2. Mission Air Conditioning & Plumbing

    Best for vetted technicians4.8(2992 Google reviews)1630 Elmview Dr, Houston, TX 77080Best for older Houston homes needing both HVAC and plumbing from one contractor    Rank02

    Why we picked them

    A family company with 4.8 from 3,001 reviews and background-checked technicians.

    What we like

    • Technician photo sent before visits
    • No Breakdown Guarantee
    • AC and plumbing licenses published

    Things to consider

    • Closed on Sundays

    Services

    • Water heater repair
    • Repiping
    • AC repair
    • AC installation
    • Furnace repair
    • Duct cleaning
    • Maintenance plans

    Key details

    Best for
    older Houston homes needing both HVAC and plumbing from one contractor
    Service area
    Houston
    Years in business
    10 years
    Warranty
    No Breakdown Guarantee
    Financing
    Available
    Credentials
    Texas master plumber license

  3. All Star A/C, Plumbing & Electrical

    Best warranty in northwest Houston4.9(1988 Google reviews)9418 Mills Rd, Houston, TXBest for northwest Houston families who want a long parts and labor warranty    Rank03

    Why we picked them

    4.9 from 1,988 reviews and an owner who shows up personally on holiday weekends.

    What we like

    • Up to 10-year parts and labor warranty
    • Family owned since 2010
    • Twice-yearly protection plan

    Things to consider

    • License number not published

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Maintenance plans

    Key details

    Best for
    northwest Houston families who want a long parts and labor warranty
    Service area
    Houston
    Years in business
    16 years
    Warranty
    Up to 10 years on parts and labor for qualifying installations.
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  4. Bellaire Air Conditioning

    Best for custom ductwork4.9(511 Google reviews)5414 Ashbrook Dr, Houston, TXBest for custom ductwork and indoor air quality in Bellaire and Meyerland homes    Rank04

    Why we picked them

    More than 55 years in southwest Houston and 4.9 from 511 reviews.

    What we like

    • Family owned since 1968
    • Custom duct design
    • Open 24 hours

    Things to consider

    • One review mentions a drain leak after service

    Services

    • AC repair
    • AC installation
    • Heat pump installation
    • Maintenance plans

    Key details

    Best for
    custom ductwork and indoor air quality in Bellaire and Meyerland homes
    Service area
    Houston
    Years in business
    58 years
    Warranty
    Fix-It-Fast, Professional Workmanship, and Cleaner Than We Found It guarantees
    Emergency service
    Available
    Financing
    Available

  5. Ace Comfort Air Conditioning & Heating

    Best for transparent pricing4.9(211 Google reviews)601 Milwaukee St, Houston, TXBest for inner-loop homeowners who want fair, transparent pricing    Rank05

    Why we picked them

    An owner-led inner-loop company whose reviewers say its prices beat other quotes.

    What we like

    • Published Texas license
    • NATE certified technicians
    • Free estimates

    Things to consider

    • Smaller review base

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Maintenance plans

    Key details

    Best for
    inner-loop homeowners who want fair, transparent pricing
    Service area
    Houston
    Years in business
    11 years
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  6. Cool Care Heating and Air Conditioning

    Best written guarantee4.9(352 Google reviews)2015 Bauer Dr, Houston, TXBest for west Houston homeowners who want a written guarantee and no-fee diagnostics    Rank06

    Why we picked them

    A family firm with 4.9 from 352 reviews and clear, simple explanations.

    What we like

    • 100% written guarantee
    • No diagnostic fee on approved repairs
    • Open 8 AM to 8 PM daily

    Things to consider

    • No overnight service

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Duct cleaning
    • Maintenance plans

    Key details

    Best for
    west Houston homeowners who want a written guarantee and no-fee diagnostics
    Service area
    Houston
    Years in business
    14 years
    Warranty
    100% written guarantee on work. Ask how long it lasts and what it covers.
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  7. House Pro Air Conditioning

    Best for detailed maintenance4.7(1573 Google reviews)330 Garden Oaks Blvd, Houston, TXBest for thorough inspections and indoor air quality work in the Heights and Garden Oaks    Rank07

    Why we picked them

    More than 25 years in Garden Oaks and 1,573 reviews at 4.7.

    What we like

    • 32-point inspections
    • Indoor air quality focus
    • 0% financing options

    Things to consider

    • One review alleges an upsell

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Heat pump installation
    • Duct cleaning
    • Maintenance plans

    Key details

    Best for
    thorough inspections and indoor air quality work in the Heights and Garden Oaks
    Service area
    Houston
    Years in business
    26 years
    Warranty
    No Breakdown Guarantee with $59 AC tune up
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  8. Just-N-Time AC and Heating

    Best for evening emergencies4.9(429 Google reviews)2219 W 34th St # A1, Houston, TXBest for late-day AC emergencies from a responsive owner-run shop    Rank08

    Why we picked them

    4.9 from 429 reviews and a team that comes out late in the day.

    What we like

    • Owner-run
    • Returns to fix missed details
    • Free estimates

    Things to consider

    • Closed on Sundays

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Maintenance plans

    Key details

    Best for
    late-day AC emergencies from a responsive owner-run shop
    Service area
    Houston
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

  9. The Lee Thompson Co

    Best long-established family firm4.9(528 Google reviews)1718 Elmview Dr, Houston, TXBest for homeowners and businesses who want a 60-year-old family firm    Rank09

    Why we picked them

    Six decades in Houston, 4.9 from 528 reviews and customers loyal for 30+ years.

    What we like

    • In business since 1961
    • Residential and commercial
    • Open 24 hours

    Things to consider

    • License number not published

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Maintenance plans

    Key details

    Best for
    homeowners and businesses who want a 60-year-old family firm
    Service area
    Houston
    Years in business
    65 years
    Emergency service
    Available
    Financing
    Available
    Credentials
    Fully licensed and insured

  10. Mr. Reliable Heating & Air

    Best for honest diagnostics4.9(825 Google reviews)1729 Brittmoore Rd B2, Houston, TXBest for quick diagnostics and membership-based maintenance in west Houston    Rank10

    Why we picked them

    4.9 from 825 reviews, with technicians praised for avoiding unnecessary repairs.

    What we like

    • Published Texas license
    • BBB A+ and NCI certified
    • Online booking

    Things to consider

    • Founding year not published

    Services

    • AC repair
    • AC installation
    • Furnace repair
    • Duct cleaning
    • Maintenance plans

    Key details

    Best for
    quick diagnostics and membership-based maintenance in west Houston
    Service area
    Houston
    Emergency service
    Available
    Financing
    Available
    Credentials
    Texas air conditioning contractor license

Compare the top hvac companies in Houston

Ranking position reflects our editorial review, not customer ratings.

Editorial comparison of the 10 ranked companies. Customer ratings, where shown, come from the source named on each company profile.
RankCompanyBest forKey servicesService areaGoogle ratingEmergencyProfile
01Air Tech of Houston AC & Plumbinground-the-clock AC, plumbing and electrical service from one licensed companyAC repair, AC installation, Furnace repairHouston4.8 (6520)YesView →
02Mission Air Conditioning & Plumbingolder Houston homes needing both HVAC and plumbing from one contractorWater heater repair, Repiping, AC repairHouston4.8 (2992)Not listedView →
03All Star A/C, Plumbing & Electricalnorthwest Houston families who want a long parts and labor warrantyAC repair, AC installation, Furnace repairHouston4.9 (1988)YesView →
04Bellaire Air Conditioningcustom ductwork and indoor air quality in Bellaire and Meyerland homesAC repair, AC installation, Heat pump installationHouston4.9 (511)YesView →
05Ace Comfort Air Conditioning & Heatinginner-loop homeowners who want fair, transparent pricingAC repair, AC installation, Furnace repairHouston4.9 (211)YesView →
06Cool Care Heating and Air Conditioningwest Houston homeowners who want a written guarantee and no-fee diagnosticsAC repair, AC installation, Furnace repairHouston4.9 (352)Not listedView →
07House Pro Air Conditioningthorough inspections and indoor air quality work in the Heights and Garden OaksAC repair, AC installation, Furnace repairHouston4.7 (1573)YesView →
08Just-N-Time AC and Heatinglate-day AC emergencies from a responsive owner-run shopAC repair, AC installation, Furnace repairHouston4.9 (429)YesView →
09The Lee Thompson Cohomeowners and businesses who want a 60-year-old family firmAC repair, AC installation, Furnace repairHouston4.9 (528)YesView →
10Mr. Reliable Heating & Airquick diagnostics and membership-based maintenance in west HoustonAC repair, AC installation, Furnace repairHouston4.9 (825)YesView →

HVAC companies serving Houston and nearby areas

Most companies in this ranking work across Texas and the surrounding suburbs. Coverage and travel fees vary, so confirm your address is inside the service area before scheduling.

  • Houston
  • Conroe
  • Katy
  • The Woodlands
  • Humble
  • Pasadena
  • Bellaire
  • River Oaks
  • Cypress
  • Jersey Village
  • Spring
  • Tomball

Nearby rankings

Houston, Texas

Service coverage across Houston. Individual company areas are listed on each profile.

How we chose the best hvac companies in Houston

Read our full ranking methodology →

We searched Google Maps for HVAC companies in Houston on September 17, 2026, then checked each high-ranking result's reviews and website. We removed listings with red flags such as template or lead-generation websites, free email addresses in place of a company domain, or vague reviews. The remaining companies rated 4.5 or higher with at least 50 reviews are listed in the order Google returned them. Ratings and review counts are as read on that date and will change. No company paid to be included.

How to choose a hvac company in Houston

  • Verify insurance and credentials

    Ask for a current certificate of insurance and confirm registration or licensing with the authority that issues it, not with the company.

  • Ask for a written estimate

    Scope, materials, removal, disposal and who pulls the permit should all be named on the page rather than agreed on the doorstep.

  • Compare multiple quotes

    Two or three bids on the same scope. A number far below the others usually means something has been left out of it.

  • Understand the warranty

    Separate the manufacturer's warranty on materials from the company's own warranty on the work, and get both in writing.

  • Ask who performs the work

    Find out whether the crew are employees or subcontractors, and who supervises them on the day.

  • Check recent local projects

    Ask for addresses or photographs of comparable jobs finished nearby in the last year or two.

  • Avoid high-pressure sales

    A discount that expires today, or a knock on the door after a storm, is a reason to slow down rather than sign.

  • Get everything in writing

    Change orders, timeline and payment schedule included, before the first payment changes hands.

Questions to ask before hiring

  • Are you insured, and can you send the certificate?
  • How long have you worked in this area?
  • Will you provide a written estimate with materials listed?
  • What warranty do you offer on the work itself?
  • Do you use subcontractors for this job?
  • Who handles permits and inspection?
  • What would you recommend here, and why?
  • How are unexpected costs handled once work starts?
  • What is the estimated timeline from start to finish?
  • Can you provide recent local references?

Red flags

  • No verifiable local business address or registration
  • Pressure to sign on the first visit
  • A demand for full payment up front
  • An offer to cover or waive your insurance deductible
  • Refusal to put warranty terms in writing
  • A quote that will not itemize scope

Related home services in Houston

HVAC guides for Houston homeowners

HVAC companies in Houston FAQs

  • Do HVAC companies in Houston need a license?

    Yes. Texas requires HVAC contractors to hold an air conditioning and refrigeration contractor license from the Texas Department of Licensing and Regulation, and you can look up a number on the TDLR website. Air Tech of Houston, Mission, Ace Comfort, Cool Care and Mr. Reliable all publish their license numbers.

  • Which Houston HVAC companies offer 24-hour AC repair?

    Most companies on this list are open 24 hours, including Air Tech of Houston, All Star A/C, Bellaire Air Conditioning, House Pro, The Lee Thompson Co and Mr. Reliable. Mission, Ace Comfort and Just-N-Time are open around the clock Monday through Saturday but closed Sundays, and Cool Care keeps 8 AM to 8 PM hours.

  • How often should an AC be serviced in Houston?

    Because air conditioners run most of the year in Houston, most technicians recommend at least one tune-up a year, and many companies suggest two. Plans such as All Star's Home Protection Plan include two inspections a year, and House Pro uses a 32-point checklist on each visit.

About this ranking

Originally published
September 2026
Last reviewed
September 2026
Companies evaluated
10

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