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Emergency HVAC Contractors in Belmont, CA (2026)

Top 50 of 551 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 Belmont: Fuse Service, 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 Belmont at a glance

Top emergency HVAC contractors in Belmont at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Fuse Service644.9★ (264)San Mateo, 1 mi away24/7
2Fuse service635.0★ (444)Palo Alto, 8 mi away24/7
3Cabrillo Plumbing, Heating & Air635.0★ (208)Menlo Park, 5 mi away24/7
4Heise's Plumbing624.9★ (1,454)San Francisco, 17 mi away24/7
5Service Champions624.9★ (3,407)San Jose, 22 mi away24/7
6Bell Brothers Plumbing Heating & Air - Hayward624.7★ (863)Hayward, 11 mi away24/7
7Service Hero Plumbing & Air624.5★ (1,252)Hayward, 12 mi away24/7
8Cabrillo Plumbing, Heating & Air624.9★ (966)San Francisco, 17 mi away24/7
9Heating And Air Experts - Affordable HVAC Contractor in Fremont, California625.0★ (761)Fremont, 17 mi away24/7
10Jazz Heating, Air Conditioning and Plumbing624.9★ (3,438)Pleasanton, 25 mi away24/7

Call an emergency HVAC contractor in Belmont 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 Belmont, 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 551 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 Belmont

    #1 Fuse Service

    Based in San Mateo, 1 mi away

    64/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 264 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 264 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 37th Ave, San Mateo, CA 94403
    View profile for Fuse Service(408) 702-2554

  2. #2 Fuse service

    Based in Palo Alto, 8 mi away

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 444 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 444 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    349 Everett Ave, Palo Alto, CA 94301
    View profile for Fuse service(408) 412-9334

  4. #4 Heise's Plumbing

    Based in San Francisco, 17 mi away

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,454 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,454 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    260 Ocean Ave, San Francisco, CA 94112
    View profile for Heise's Plumbing(415) 333-0704

  5. #5 Service Champions

    Based in San Jose, 22 mi away

    62/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 3,407 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 3,407 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2161 Del Franco St, San Jose, CA 95131
    View profile for Service Champions(408) 549-7376

  12. #12 Belmont HVAC Pro

    Based in Belmont

    62/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 75 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2820 Hallmark Dr, Belmont, CA 94002
    View profile for Belmont HVAC Pro(650) 226-7222

  17. #17 Service Champions

    Based in Pleasanton, 23 mi away

    61/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.8★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,337 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7020 Commerce Dr, Pleasanton, CA 94588
    View profile for Service Champions(925) 248-3458

  18. #18 Electric Air

    Based in Redwood City, 5 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 72 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2684 Middlefield Rd Unit D, Redwood City, CA 94063
    View profile for Electric Air(650) 670-4860

Top 50 of 551 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 Belmont, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Villquin Air Services604.9★ (172)12 mi
27Chill Heating and Cooling605.0★ (1,017)24 mi
28Bay Area Climate Control604.9★ (162)12 mi
29Fuse HVAC, Refrigeration, Electrical & Plumbing604.9★ (216)14 mi
30Arch Plumbing Inc.604.9★ (286)17 mi
31Atlas Trillo604.6★ (1,308)22 mi
32Finest Heating & air604.9★ (87)10 mi
33Rooter Hero Plumbing & Air of San Lorenzo604.7★ (265)15 mi
34HVAC Redwood City605.0★ (33)5 mi
351st Heating And Cooling East Palo Alto595.0★ (46)8 mi
36Fuse594.9★ (400)21 mi
37Eco Air Cooling and Heating595.0★ (28)5 mi
38Glover & Son Heating & Air Conditioning [Recommended] Bay Area AC Repair594.8★ (122)13 mi
39Trusted AC Repair Palo Alto595.0★ (36)8 mi
40ARS/ Rescue Rooter594.7★ (546)22 mi
41Comfy Heating & Air Conditioning Inc.594.8★ (111)14 mi
42Roofsky Air Duct Cleaning Service595.0★ (17)4 mi
43Excellent Repair594.8★ (43)9 mi
44Fuse Service584.9★ (273)22 mi
45Superior HVAC Contractor Palo Alto585.0★ (31)10 mi
46Alaska Refrigeration Air Conditioning & Heating Co584.9★ (130)19 mi
47Green Mechanics Heating & AC Repair Specialists584.9★ (74)16 mi
48Pacific Coast Home Services584.4★ (735)23 mi
49Lunar Air Systems584.9★ (35)12 mi
50The Clean Sky HVAC and Appliance Repair585.0★ (37)13 mi

How we ranked emergency HVAC contractors in Belmont

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 Belmont: questions

Which HVAC contractors in Belmont are open 24/7?

25 on this list post 24/7 hours, including Fuse Service, Fuse service, Cabrillo Plumbing, Heating & Air, Heise's Plumbing and Service Champions.

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

Fuse Service is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency HVAC contractors in Belmont 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 Belmont

  1. October 2026: CR Scores recalculated for 551 hvac contractors serving Belmont.
  2. October 2026: 5 duplicate listings merged.

More emergency and heating and cooling pages