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Emergency HVAC Contractors in Katy, TX (2026)

Top 50 of 642 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Katy: The Katy Plumbing Company Heating & Air, open 24/7.

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

Top emergency HVAC contractors in Katy at a glance

Top emergency HVAC contractors in Katy at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1The Katy Plumbing Company Heating & Air664.9★ (3,343)Katy24/7
2Air Tech of Katy664.8★ (3,047)Katy24/7
3BVS Home Experts654.9★ (940)Katy24/7
4Just Fix It Today634.8★ (434)Katy24/7
5One Hour Air Conditioning & Heating® of Houston634.7★ (9,886)Houston, 16 mi away24/7
6ARS / Rescue Rooter624.6★ (11,276)Houston, 17 mi away24/7
7MJS A/C and Heating LLC625.0★ (151)Katy24/7
8Mr. Reliable Heating & Air625.0★ (124)Katy24/7
9TemperaturePro Katy-Cypress625.0★ (107)Katy24/7
10Air Express624.8★ (495)Richmond, 7 mi away24/7

Call an emergency HVAC contractor in Katy now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Katy, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 642 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Air Tech of Katy

    Based in Katy

    66/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 3,047 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,047 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5614 Franz Rd Suite B, Katy, TX 77493
    View profile for Air Tech of Katy(281) 317-7680

  3. #3 BVS Home Experts

    Based in Katy

    65/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 940 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 940 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2717 Commercial Center Blvd E201, Katy, TX 77494
    View profile for BVS Home Experts(281) 248-8369

  4. #4 Just Fix It Today

    Based in Katy

    63/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 434 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 434 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    21819 Katy Fwy Ste B103, Katy, TX 77450
    View profile for Just Fix It Today(281) 503-4125

  6. #6 ARS / Rescue Rooter

    Based in Houston, 17 mi away

    62/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.6★ from 11,276 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 11,276 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10515 Okanella St STE 100, Houston, TX 77041
    View profile for ARS / Rescue Rooter(713) 428-2700

  10. #10 Air Express

    Based in Richmond, 7 mi away

    62/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.8★ from 495 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 495 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7225 N Park Dr, Richmond, TX 77407
    View profile for Air Express(281) 638-8593

  12. #12 5 Star A/C Filter

    Based in Katy

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 85 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2900 Katy Hockley Cut Off Rd #B204, Katy, TX 77493
    View profile for 5 Star A/C Filter(281) 391-1911

  19. #19 Texas Air Care

    Based in Katy

    61/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 56 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19946 Cresent Creek Dr, Katy, TX 77449
    View profile for Texas Air Care(281) 752-8070

  24. #24 AC Man Houston

    Based in Katy

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1539 S Mason Rd, Katy, TX 77450
    View profile for AC Man Houston(713) 460-2653

Top 50 of 642 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Katy, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26RP AC SERVICES AND REMODELING604.9★ (36)In Katy
27Aire Serv of Houston Northwest604.9★ (653)16 mi
28Air Star Now605.0★ (646)19 mi
29American Comfort Experts604.9★ (583)17 mi
30Texas Eagle AC and Heating, LLC605.0★ (194)12 mi
31Precision Katy Heating & Cooling605.0★ (21)In Katy
32Excel Air604.9★ (442)16 mi
33Multipoint AC & Heating604.9★ (198)12 mi
34Climate Experts Heating, Ventilation, and Air Conditioning595.0★ (129)11 mi
35Climate Control Solutions Air Conditioning And Heating595.0★ (267)15 mi
36Air Bourne Air A/C & Heat Inc.594.6★ (261)11 mi
37AirMaster Services593.9★ (115)In Katy
38House Pro Air Conditioning594.7★ (1,336)21 mi
39TEXAS A/C PRO LLC595.0★ (15)In Katy
40Pro CAP Construction Ac Plumbing Company595.0★ (32)4 mi
41The Lee Thompson Co594.9★ (412)18 mi
42Anointed Comfort Heating And Cooling595.0★ (19)2 mi
43ASR Mechanical595.0★ (788)24 mi
44Cy-Fair Mechanical LLC594.9★ (191)15 mi
45Air Chek Service Cooling & Heating594.5★ (14)In Katy
46LGS HVAC Inc594.9★ (16)2 mi
47Modern Air of Katy595.0★ (132)15 mi
48Spring Branch AC594.9★ (349)19 mi
49Dependable Comfort AC & Heating, Inc.584.1★ (16)In Katy
50Fresh Air LP584.8★ (488)20 mi

How we ranked emergency HVAC contractors in Katy

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

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 from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Katy: questions

Which HVAC contractors in Katy are open 24/7?

25 on this list post 24/7 hours, including The Katy Plumbing Company Heating & Air, Air Tech of Katy, BVS Home Experts, Just Fix It Today and One Hour Air Conditioning & Heating® of Houston.

Who is ranked #1 for emergency heating and cooling in Katy, TX?

The Katy Plumbing Company Heating & Air is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Katy ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Katy

  1. October 2026: CR Scores recalculated for 642 hvac contractors serving Katy.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages