Skip to content
ContractorsRanked

Best HVAC Contractors in Gainesville, TX (2026)

36 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Gainesville: Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning), CR Score 67/100; 5.0★ from 657 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Absolute Heat & Air, posts 24/7 hours; ranked #2 of 36.

  3. 6

    Most-reviewed: Cote's Mechanical, LLC, 1,457 Google reviews at 4.8★, the most of 36 ranked; ranked #6.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

36 Gainesville HVAC contractors are ranked here by CR Score, from ten published factors. 18 are open 24/7, 24 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 4.9★ across 36 rated businesses.

Top 10 HVAC contractors in Gainesville at a glance

Top 10 HVAC contractors in Gainesville at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning)675.0★ (657)Gainesville24/7Overall
2Absolute Heat & Air664.8★ (580)Gainesville24/7Emergencies
3Aire Serv of Denton654.9★ (198)Gainesville24/7—
4C & L Services645.0★ (89)Gainesville24/7—
5PHI Heat & Air, Inc644.9★ (112)Gainesville24/7—
6Cote's Mechanical, LLC634.8★ (1,457)Sanger, 18 mi away24/7Most reviews
7Alvis Mechanical LLC615.0★ (20)Gainesville24/7—
8Arctic Air Heating And Cooling614.9★ (75)Allen, 10 mi away24/7—
9Nextgen Airworks LLC605.0★ (12)Gainesville24/7—
10Legacy Air Solutions605.0★ (61)GainesvilleSat—

The 36 best HVAC contractors in Gainesville, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Gainesville

    #1 Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning)

    Based in Gainesville

    67/100CR Score

    Ranked #1 because of its Google rating and trade focus: 5.0★ from 657 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 657 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3200 US-82, Gainesville, TX 76240
    View profile for Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning)(940) 334-4822

  2. #2 Absolute Heat & Air

    Based in Gainesville

    66/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 580 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 580 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2106 US-82, Gainesville, TX 76240
    View profile for Absolute Heat & Air(940) 736-7455

  3. #3 Aire Serv of Denton

    Based in Gainesville

    65/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 198 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 198 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    840 E Main St, Gainesville, TX 76240
    View profile for Aire Serv of Denton(940) 241-4809

  4. #4 C & L Services

    Based in Gainesville

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 89 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for C & L Services(940) 736-7661

  5. #5 PHI Heat & Air, Inc

    Based in Gainesville

    64/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 112 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 112 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4561 US-82, Gainesville, TX 76240
    View profile for PHI Heat & Air, Inc(940) 768-8586

  6. #6 Cote's Mechanical, LLC

    Based in Sanger, 18 mi away

    63/100CR Score

    Ranked #6 because of its Google rating and review volume: 4.8★ from 1,457 Google reviews, the most in Gainesville.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 1,457 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    315 N 3rd St, Sanger, TX 76266
    View profile for Cote's Mechanical, LLC(940) 202-0196

  7. #7 Alvis Mechanical LLC

    Based in Gainesville

    61/100CR Score

    Ranked #7 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Alvis Mechanical LLC(940) 443-8961

  9. #9 Nextgen Airworks LLC

    Based in Gainesville

    60/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 12 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Nextgen Airworks LLC(903) 718-1992

  10. #10 Legacy Air Solutions

    Based in Gainesville

    60/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 61 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun closed
    View profile for Legacy Air Solutions(940) 923-0570

  11. #11 Bluebonnet Heat and Air

    Based in Gainesville

    59/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 10 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    461 Co Rd 214, Gainesville, TX 76240
    View profile for Bluebonnet Heat and Air(940) 612-9455

  14. #14 Comfort Ice Box LLC

    Based in Sanger, 20 mi away

    58/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 70 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    306 Deer Run Dr, Sanger, TX 76266
    View profile for Comfort Ice Box LLC(972) 896-1172

  15. #15 MCM Heating & Air Conditioning

    Based in Gainesville

    58/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.6★ from 50 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 50 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 8:30 AM–2:30 PM · Sun closed
    Address
    131 Co Rd 131, Gainesville, TX 76240
    View profile for MCM Heating & Air Conditioning(940) 668-7129

  16. #16 OneTech A/C Gainesville

    Based in Gainesville

    58/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 3 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1923 Tulane St, Gainesville, TX 76240
    View profile for OneTech A/C Gainesville(469) 447-1111

  17. #17 R2 Mechanical HVAC

    Based in Denton, 25 mi away

    58/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 95 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 95 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6200 Meadowlands Dr, Krum, TX 76249
    View profile for R2 Mechanical HVAC(940) 208-5398

  18. #18 PRK Services, Inc.

    Based in Sanger, 19 mi away

    58/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 123 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 123 Google reviews
    Hours
    Mon–Sun 7 AM–7 PM
    Address
    1606 Duck Creek Rd, Sanger, TX 76266
    View profile for PRK Services, Inc.(940) 382-8554

  19. #19 Underwood's Heating & Air

    Based in Sanger, 19 mi away

    56/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 64 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun 8 AM–7 PM
    Address
    5538 Farm to Market 455 W, Sanger, TX 76266
    View profile for Underwood's Heating & Air(940) 367-9739

  20. #20 King's Heat & A/C

    Based in Gainesville

    56/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.5★ from 8 Google reviews
    Address
    1544 Burns City Rd #6300, Gainesville, TX 76240
    View profile for King's Heat & A/C(940) 668-7589

  21. #21 Peak Mechanical

    Based in Sanger, 22 mi away

    56/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.6★ from 42 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 42 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6721 FM 2164, Sanger, TX 76266
    View profile for Peak Mechanical(940) 382-2103

  22. #22 American Comfort LLC

    Based in Sanger, 21 mi away

    55/100CR Score

    Ranked #22 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 15 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for American Comfort LLC(817) 350-1517

  23. #23 Peak Mechanical, LLC

    Based in Sanger, 22 mi away

    55/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 13 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6715 FM 2164, Sanger, TX 76266
    View profile for Peak Mechanical, LLC(817) 381-5061

All 36 HVAC contractors

#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile.

HVAC contractors in Gainesville, ranks 26 to 36
RankBusinessCR ScoreGoogle ratingDistance
26Affordable air conditioning533.6★ (53)In Gainesville
27Energy Saver534.2★ (5)1 mi
28Air D&B HVAC534.5★ (4)In Gainesville
29Chad Sieger's Plumbing Heating and Air523.2★ (18)In Gainesville
30Starsky Mechanical Heating and Air Conditiong525.0★ (11)20 mi
31North Texas Environmental515.0★ (5)22 mi
32TL Central Heating & Air, LLC505.0★ (11)20 mi
3372 Degrees Services Heating & Air Conditioning493.9★ (19)18 mi
34R & T Mechanical LLC483.5★ (11)18 mi
35Capital Plumbing and Mechanical455.0★ (20)19 mi
36GO Services Solution445.0★ (4)25 mi

Also serving Gainesville

10 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Gainesville
BusinessGoogle ratingDistance
Air D&B HVACIn Gainesville
Cozy Homes HVAC3.0★ (2)18 mi
Culpepper Plumbing & AC Inc5.0★ (1)In Gainesville
Dumpster Rentals OklahomaIn Gainesville
EnLight.Energy5.0★ (2)2 mi
Ewing Heating & AirIn Gainesville
Patriot Heating & Cooling18 mi
Safe Step HVAC contractor5.0★ (1)18 mi
Sieger's Plumbing3.4★ (22)In Gainesville
Texas HVAC Services3.0★ (2)In Gainesville

How much do HVAC contractors cost in Gainesville?

National price ranges in USD, not adjusted for Gainesville. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Gainesville?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in Texas

In Texas, Texas Department of Licensing and Regulation (TDLR) licenses Air conditioning and refrigeration contractor licenses (Class A and B).

  1. Search the business name or license number on the Texas Department of Licensing and Regulation (TDLR) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in Texas

In Texas, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.

How we ranked Gainesville HVAC contractors

We scored 36 Gainesville HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Gainesville data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Gainesville: frequently asked questions

Who is the best HVAC contractor in Gainesville?

By CR Score, the highest-ranked HVAC contractor in Gainesville, TX is Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning) with a CR Score of 67/100. It has 5.0★ from 657 Google reviews. It is open 24/7. Absolute Heat & Air (#2) and Aire Serv of Denton (#3) follow. We ranked 36 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Gainesville?

ContractorsRanked ranks 36 HVAC contractors serving Gainesville, TX. 17 of them are based in Gainesville; the rest serve it from nearby towns. Another 10 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Gainesville are open 24/7?

18 ranked HVAC contractors in Gainesville post 24/7 hours. The highest-ranked are Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning) (#1), Absolute Heat & Air (#2) and Aire Serv of Denton (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Gainesville work on weekends?

24 of 36 ranked HVAC contractors post Saturday hours and 22 post Sunday hours. The highest-ranked open Saturdays are Hesse Heat & Air (Formerly Hesse-Schniederjan Heating and Air Conditioning) (#1), Absolute Heat & Air (#2) and Aire Serv of Denton (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Texas?

In Texas, Texas Department of Licensing and Regulation (TDLR) handles licensing and covers Air conditioning and refrigeration contractor licenses (Class A and B). Search the business or license number at https://www.tdlr.texas.gov/LicenseSearch/.

How much does ac replacement cost in Gainesville?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Gainesville. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Gainesville HVAC contractors have?

The median Google rating among 36 rated HVAC contractors in Gainesville is 4.9★, with a median of 20 reviews. Cote's Mechanical, LLC has the most, 1,457 reviews, and ranks #6. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Gainesville?

In Texas, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.

Update log for Gainesville

  1. October 2026: CR Scores recalculated for 36 hvac contractors serving Gainesville.
  2. October 2026: 1 duplicate listing merged.

More HVAC contractors and Gainesville pages

Other trades in Gainesville