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Emergency HVAC Contractors in Greatwood, TX (2026)

Top 50 of 638 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 Greatwood: One Hour Air Conditioning & Heating® of Houston, 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 Greatwood at a glance

Top emergency HVAC contractors in Greatwood at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1One Hour Air Conditioning & Heating® of Houston624.7★ (9,886)Houston, 21 mi away24/7
2The Katy Plumbing Company Heating & Air624.9★ (3,343)Katy, 19 mi away24/7
3Air Check Mechanical Services624.9★ (173)Rosenberg, 3 mi away24/7
4Fresh Air LP624.8★ (488)Richmond, 8 mi away24/7
5TemperaturePro624.9★ (113)Sugar Land, 1 mi away24/7
6ARS / Rescue Rooter624.6★ (11,276)Houston, 22 mi away24/7
7Air Tech of Houston AC & Plumbing624.9★ (5,588)Houston, 23 mi away24/7
8BVS Home Experts624.9★ (940)Katy, 14 mi away24/7
9Air Tech of Katy614.8★ (3,047)Katy, 19 mi away24/7
10Air Express614.8★ (495)Richmond, 11 mi away24/7

Call an emergency HVAC contractor in Greatwood 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 Greatwood, 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 638 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.

  4. #4 Fresh Air LP

    Based in Richmond, 8 mi away

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 488 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 488 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5702 Powerline Rd, Richmond, TX 77469
    View profile for Fresh Air LP(281) 499-3511

  5. #5 TemperaturePro

    Based in Sugar Land, 1 mi away

    62/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 113 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 113 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19901 Southwest Fwy Suite 237A, Sugar Land, TX 77479
    View profile for TemperaturePro(281) 519-0031

  8. #8 BVS Home Experts

    Based in Katy, 14 mi away

    62/100CR Score

    Ranked #8 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

  9. #9 Air Tech of Katy

    Based in Katy, 19 mi away

    61/100CR Score

    Ranked #9 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

  10. #10 Air Express

    Based in Richmond, 11 mi away

    61/100CR 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

  11. #11 Maxx AC & Heating

    Based in Stafford, 9 mi away

    61/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.8★ from 304 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 304 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13120 Mula Ct, Stafford, TX 77477
    View profile for Maxx AC & Heating(281) 338-2653

  16. #16 Arnett Mechanical

    Based in Alvin, 14 mi away

    60/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 290 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 290 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    14018 Hwy 6 Ste 5, Rosharon, TX 77583
    View profile for Arnett Mechanical(713) 300-1478

  23. #23 Just Fix It Today

    Based in Katy, 16 mi away

    60/100CR Score

    Ranked #23 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

Top 50 of 638 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 Greatwood, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26NDH Service - Air Conditioning and Heating594.9★ (161)14 mi
27Air Star Now595.0★ (646)23 mi
28Aire Serv of Katy594.9★ (242)17 mi
29Master Comfort AC & Heating594.9★ (135)13 mi
30The Lee Thompson Co594.9★ (412)19 mi
31Sugar Land HVAC Repair595.0★ (20)3 mi
32Excellence A/C & Heating595.0★ (143)16 mi
33Houston A/C and Heating Pros595.0★ (52)10 mi
34MJS A/C and Heating LLC595.0★ (151)16 mi
35TemperaturePro Katy-Cypress594.9★ (310)19 mi
36Hage Energy595.0★ (203)18 mi
37Elite HVAC Houston Specialists595.0★ (43)10 mi
38Excel Air594.9★ (442)22 mi
39Mr. Reliable Heating & Air595.0★ (124)16 mi
40Weaver AC Repair Solutions595.0★ (41)9 mi
41NextDoor AC - Heating & Air Conditioning584.9★ (47)10 mi
42TemperaturePro Katy-Cypress585.0★ (107)16 mi
43Comfort HVAC Sugar Land585.0★ (9)1 mi
44Alpha 4 Real AC & Heating584.4★ (64)8 mi
45Done Deal A/C & Heating Katy584.8★ (114)14 mi
46Stalwart Air Conditioning & Heating Services LLC585.0★ (156)18 mi
47Air City AC & Heating LLC584.7★ (533)22 mi
48Aire Serv of Central & West Houston584.9★ (193)19 mi
49Modern Air of Katy585.0★ (132)18 mi
50Jemal's Air Conditioning & Heating585.0★ (36)10 mi

How we ranked emergency HVAC contractors in Greatwood

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 Greatwood: questions

Which HVAC contractors in Greatwood are open 24/7?

25 on this list post 24/7 hours, including One Hour Air Conditioning & Heating® of Houston, The Katy Plumbing Company Heating & Air, Air Check Mechanical Services, Fresh Air LP and TemperaturePro.

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

One Hour Air Conditioning & Heating® of Houston is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency HVAC contractors in Greatwood 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 Greatwood

  1. October 2026: CR Scores recalculated for 638 hvac contractors serving Greatwood.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages