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Emergency HVAC Contractors in Sunnyvale, TX (2026)

Top 26 of 894 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 26 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 Sunnyvale: Baker Brothers Plumbing, Air & Electric, 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 Sunnyvale at a glance

Top emergency HVAC contractors in Sunnyvale at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Baker Brothers Plumbing, Air & Electric674.9★ (24,389)Mesquite, 6 mi away24/7
2Xtreme Air Services - HVAC, Plumbing, & Electrical654.8★ (2,452)Sunnyvale24/7
3Willard Heating, Cooling, & Plumbing654.9★ (5,757)Forney, 7 mi away24/7
4Bacon Plumbing Heating Air Electric644.9★ (7,092)Rockwall, 11 mi away24/7
5On Time Experts644.8★ (5,914)Garland, 9 mi away24/7
6Copeland Heating Air Conditioning Plumbing and Electrical Repair Services634.9★ (2,076)Forney, 8 mi away24/7
7Rescue Air and Plumbing634.9★ (3,641)Dallas, 13 mi away24/7
8Berkeys Plumbing, A/C & Electrical634.9★ (3,253)Dallas, 13 mi away24/7
9Infinity Texas Air634.9★ (1,325)Forney, 9 mi away24/7
10Service Experts Dallas624.8★ (3,908)Richardson, 14 mi away24/7

Call an emergency HVAC contractor in Sunnyvale 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 26 emergency HVAC contractors in Sunnyvale, 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 894 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.

  5. #5 On Time Experts

    Based in Garland, 9 mi away

    64/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.8★ from 5,914 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 5,914 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2914 National Ct, Garland, TX 75041
    View profile for On Time Experts(469) 208-9725

  9. #9 Infinity Texas Air

    Based in Forney, 9 mi away

    63/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,325 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,325 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12025 Lewis Cir, Forney, TX 75126
    View profile for Infinity Texas Air(972) 734-1903

  10. #10 Service Experts Dallas

    Based in Richardson, 14 mi away

    62/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.8★ from 3,908 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,908 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    640 International Pkwy Suite 200, Richardson, TX 75081
    View profile for Service Experts Dallas(972) 619-7607

  11. #11 Texas AirZone LLC

    Based in Dallas, 10 mi away

    62/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 810 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 810 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10763 Mapleridge Dr, Dallas, TX 75238
    View profile for Texas AirZone LLC(214) 851-3886

  16. #16 Conover Heating & Air

    Based in Mesquite, 5 mi away

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 184 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 184 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4200 Gus Thomasson Rd Suite 114, Mesquite, TX 75150
    View profile for Conover Heating & Air(214) 361-9630

  19. #19 Lavender AC & Heating

    Based in Mesquite, 4 mi away

    61/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 169 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 169 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1228 W Scyene Rd Suite 234, Mesquite, TX 75149
    View profile for Lavender AC & Heating(469) 704-0244

Top 26 of 894 HVAC contractors by emergency score

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

HVAC contractors in Sunnyvale, ranks 26 to 26
RankBusinessCR ScoreGoogle ratingDistance
26Bolton Heating & Air615.0★ (234)8 mi

How we ranked emergency HVAC contractors in Sunnyvale

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 Sunnyvale: questions

Which HVAC contractors in Sunnyvale are open 24/7?

25 on this list post 24/7 hours, including Baker Brothers Plumbing, Air & Electric, Xtreme Air Services - HVAC, Plumbing, & Electrical, Willard Heating, Cooling, & Plumbing, Bacon Plumbing Heating Air Electric and On Time Experts.

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

Baker Brothers Plumbing, Air & Electric is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Sunnyvale 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 Sunnyvale

  1. October 2026: CR Scores recalculated for 894 hvac contractors serving Sunnyvale.
  2. October 2026: 12 duplicate listings merged.

More emergency and heating and cooling pages