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Emergency HVAC Contractors in Lake Dallas, TX (2026)

Top 50 of 914 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 Lake Dallas: A#1 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 Lake Dallas at a glance

Top emergency HVAC contractors in Lake Dallas at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1A#1 Air664.7★ (12,266)Lewisville, 7 mi away24/7
2Air Repair Pros654.9★ (4,644)Frisco, 8 mi away24/7
3Colony Air Conditioning & Heating645.0★ (1,685)The Colony, 8 mi away24/7
4Prime AC and Heat645.0★ (860)Lewisville, 5 mi away24/7
5Berkeys Plumbing, A/C & Electrical644.8★ (7,866)Southlake, 14 mi away24/7
6Legend Air Conditioning & Heating645.0★ (908)Frisco, 7 mi away24/7
7Legend Air Conditioning & Heating634.9★ (1,197)Little Elm, 8 mi away24/7
8Aire Serv of Flower Mound635.0★ (398)Lewisville, 4 mi away24/7
9CW Service Pros Plumbing, Heating & Air Conditioning634.9★ (622)Flower Mound, 6 mi away24/7
10billyGO Air Conditioning & Plumbing634.9★ (2,224)Grapevine, 13 mi away24/7

Call an emergency HVAC contractor in Lake Dallas 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 Lake Dallas, 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 914 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.

  1. Ranked #1 in Lake Dallas

    #1 A#1 Air

    Based in Lewisville, 7 mi away

    66/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.7★ from 12,266 Google reviews.

    • 4.7★ from 12,266 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    601 E Corporate Dr, Lewisville, TX 75057
    View profile for A#1 Air(972) 460-0001

  2. #2 Air Repair Pros

    Based in Frisco, 8 mi away

    65/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 4,644 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 4,644 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1647 Witt Rd #201, Frisco, TX 75036
    View profile for Air Repair Pros(972) 630-4227

  4. #4 Prime AC and Heat

    Based in Lewisville, 5 mi away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 860 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 860 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    150 Valley Ridge Blvd Suite #102, Lewisville, TX 75057
    View profile for Prime AC and Heat(972) 400-3602

  12. #12 Rescue Rooter

    Based in Irving, 16 mi away

    63/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 6,004 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 6,004 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6029 Campus Cir Dr W Ste 150, Irving, TX 75063
    View profile for Rescue Rooter(214) 989-4872

  17. #17 On Time Experts

    Based in McKinney, 19 mi away

    62/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.9★ from 3,713 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 3,713 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5850 Collin McKinney Pkwy unit 503, McKinney, TX 75070
    View profile for On Time Experts(469) 262-1626

  18. #18 Elmer's Home Services

    Based in Grapevine, 13 mi away

    62/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.7★ from 1,728 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 1,728 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    340 W Northwest Hwy, Grapevine, TX 76051
    View profile for Elmer's Home Services(972) 301-2020

Top 50 of 914 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 Lake Dallas, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26AMC Services, Inc.614.9★ (342)9 mi
27Rescue Air and Plumbing614.9★ (3,641)22 mi
28Kelly's Heating and Air614.8★ (197)6 mi
29Service Experts Dallas614.8★ (3,908)22 mi
30Spencer Air Conditioning & Heating614.9★ (1,239)17 mi
31CW Service Pros Plumbing, Heating & Air Conditioning614.8★ (3,673)7 mi
32Frontline AC & Heating LLC615.0★ (630)16 mi
33AGES Services Company614.9★ (603)14 mi
34Red Carpet Heat and Air Services615.0★ (84)4 mi
35Service Experts Fort Worth614.8★ (5,005)24 mi
36One Hour Heating & Air Conditioning615.0★ (184)10 mi
37Ali's Air Service614.8★ (256)9 mi
38Bill Joplin's Air Conditioning & Heating614.9★ (3,532)25 mi
39Goat Air Heating & Cooling615.0★ (241)11 mi
40Total Air & Heat Co.614.9★ (1,707)21 mi
41Cote's Mechanical, LLC614.8★ (1,457)19 mi
42Harlen Johnson HVAC, Plumbing & Electrical614.8★ (1,152)17 mi
43One Hour Heating & Air Conditioning Of Frisco614.7★ (317)10 mi
44Astar Air Conditioning, Plumbing & Electric604.8★ (2,543)22 mi
45Lex - Air Conditioning, Heating, Plumbing, Electrical604.8★ (740)16 mi
46Lifetime'z Heating & Air604.9★ (320)12 mi
47Moss Heating & Cooling604.9★ (916)18 mi
48Oak Point Heating And Air LLC604.7★ (161)6 mi
49Service Experts Grand Prairie604.9★ (2,127)23 mi
50Lex - Air Conditioning, Heating, Plumbing, Electrical604.8★ (2,054)21 mi

How we ranked emergency HVAC contractors in Lake Dallas

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 Lake Dallas: questions

Which HVAC contractors in Lake Dallas are open 24/7?

25 on this list post 24/7 hours, including A#1 Air, Air Repair Pros, Colony Air Conditioning & Heating, Prime AC and Heat and Berkeys Plumbing, A/C & Electrical.

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

A#1 Air is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Lake Dallas 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 Lake Dallas

  1. October 2026: CR Scores recalculated for 914 hvac contractors serving Lake Dallas.
  2. October 2026: 5 duplicate listings merged.

More emergency and heating and cooling pages