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Emergency HVAC Contractors in Vacaville, CA (2026)

Top 50 of 149 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 Vacaville: Rendon 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 Vacaville at a glance

Top emergency HVAC contractors in Vacaville at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Rendon Heating & Air624.6★ (156)Vacaville24/7
2Air Essentials Inc624.9★ (84)Vacaville24/7
3Service Champions624.9★ (5,220)Martinez, 25 mi away24/7
4Hometown Heating and Air Conditioning614.9★ (2,463)Concord, 24 mi away24/7
5Pearce Heating & Air Conditioning, Inc.614.9★ (339)Winters, 12 mi away24/7
6Austin's Heating & Air Conditioning, Inc.615.0★ (33)Vacaville24/7
7Airwise Vacaville HVAC Solutions615.0★ (30)Vacaville24/7
8Blue Mountain Construction Services603.9★ (120)Vacaville24/7
9Freschi Service Experts604.8★ (1,046)Concord, 24 mi away24/7
10Stewart Heating, Plumbing and Air Conditioning604.9★ (851)Pittsburg, 25 mi away24/7

Call an emergency HVAC contractor in Vacaville 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 Vacaville, 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 149 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 Vacaville

    #1 Rendon Heating & Air

    Based in Vacaville

    62/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.6★ from 156 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.6★ from 156 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    527 Stevenson St, Vacaville, CA 95688
    View profile for Rendon Heating & Air(707) 999-8069

  2. #2 Air Essentials Inc

    Based in Vacaville

    62/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 84 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 84 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    610 Eubanks Ct, Vacaville, CA 95688
    View profile for Air Essentials Inc(707) 446-4080

  11. #11 AirFlow HVAC Experts

    Based in Fairfield, 7 mi away

    59/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 29 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    613 E Travis Blvd, Fairfield, CA 94533
    View profile for AirFlow HVAC Experts(707) 216-2415

  21. #21 Comfort Check

    Based in Woodland, 19 mi away

    56/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 25 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Comfort Check(530) 204-3927

Top 50 of 149 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 Vacaville, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Reliable Refrigeration, Inc.554.0★ (19)18 mi
27Aggie Heating and Air Conditioning Company545.0★ (12)24 mi
28EHC HEATING&COOLING534.0★ (4)19 mi
29Dormatech Mechanical Systems, Inc.523.4★ (5)22 mi
30SOS PLUMBING, HEATING & AIR524.0★ (3)22 mi
31Bell Brothers Plumbing Heating & Air - Concord524.0★ (4)24 mi
32Smart Air Experts522.9★ (7)24 mi
33Golden State Comfort Systems495.0★ (19)8 mi
34Larson Air Solutions495.0★ (12)5 mi
35Quality Conservation Services484.7★ (347)25 mi
36Advanced Plumbing Heating and Air484.9★ (1,413)In Vacaville
37Right Now Air & Solar484.9★ (1,388)In Vacaville
38Vineyard HVAC Services475.0★ (4)3 mi
39Value Heating & Air Inc475.0★ (12)11 mi
40Heating And Air Conditioning464.1★ (8)9 mi
41Cozy Home Services464.9★ (463)In Vacaville
42Peter Levi Plumbing, Heating, Cooling, Drains464.8★ (536)In Vacaville
43A 100% Guarantee Heating & AC LLC.464.9★ (341)In Vacaville
44All Weather Heating & Air Conditioning454.9★ (304)In Vacaville
45Renner Heating & Air Conditioning455.0★ (220)In Vacaville
46Greiner Heating, Air and Electric455.0★ (1,451)13 mi
47Alamo Heating and Cooling Inc454.9★ (175)In Vacaville
48Denny's Heating & Air Conditioning445.0★ (8)17 mi
49S M Air443.0★ (4)12 mi
50R.C. Heating & Cooling435.0★ (57)In Vacaville

How we ranked emergency HVAC contractors in Vacaville

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 Vacaville: questions

Which HVAC contractors in Vacaville are open 24/7?

25 on this list post 24/7 hours, including Rendon Heating & Air, Air Essentials Inc, Service Champions, Hometown Heating and Air Conditioning and Pearce Heating & Air Conditioning, Inc..

Who is ranked #1 for emergency heating and cooling in Vacaville, CA?

Rendon Heating & Air is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency HVAC contractors in Vacaville 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 Vacaville

  1. October 2026: CR Scores recalculated for 149 hvac contractors serving Vacaville.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages