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Emergency HVAC Contractors in Hillsborough, CA (2026)

Top 50 of 412 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 Hillsborough: Heise's Plumbing, 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 Hillsborough at a glance

Top emergency HVAC contractors in Hillsborough at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Heise's Plumbing644.9★ (1,454)San Francisco, 11 mi away24/7
2Sugar Bear Home Services634.9★ (369)South San Francisco, 5 mi away24/7
3Cabrillo Plumbing, Heating & Air634.9★ (966)San Francisco, 12 mi away24/7
4Fuse Service634.9★ (264)San Mateo, 5 mi away24/7
5Albert Nahman Plumbing, Heating, and Cooling624.7★ (3,311)Berkeley, 20 mi away24/7
6Fuse service615.0★ (444)Palo Alto, 15 mi away24/7
7Bell Brothers Plumbing Heating & Air - Hayward614.7★ (863)Hayward, 15 mi away24/7
8Arch Plumbing Inc.614.9★ (286)San Francisco, 12 mi away24/7
9Service Hero Plumbing & Air614.5★ (1,252)Hayward, 15 mi away24/7
10Cabrillo Plumbing, Heating & Air615.0★ (208)Menlo Park, 12 mi away24/7

Call an emergency HVAC contractor in Hillsborough 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 Hillsborough, 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 412 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 Hillsborough

    #1 Heise's Plumbing

    Based in San Francisco, 11 mi away

    64/100CR Score

    Ranked #1 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

  4. #4 Fuse Service

    Based in San Mateo, 5 mi away

    63/100CR Score

    Ranked #4 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

  6. #6 Fuse service

    Based in Palo Alto, 15 mi away

    61/100CR Score

    Ranked #6 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

  8. #8 Arch Plumbing Inc.

    Based in San Francisco, 12 mi away

    61/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 286 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    121 Quint St STE 5E, San Francisco, CA 94124
    View profile for Arch Plumbing Inc.(415) 325-2547

  15. #15 Belmont HVAC Pro

    Based in Belmont, 6 mi away

    60/100CR Score

    Ranked #15 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

  19. #19 Villquin Air Services

    Based in Hayward, 15 mi away

    59/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 172 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 172 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    27343 Industrial Blvd Suite H, Hayward, CA 94545
    View profile for Villquin Air Services(510) 405-1580

  20. #20 Electric Air

    Based in Redwood City, 11 mi away

    59/100CR Score

    Ranked #20 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

  23. #23 Local Plumbing

    Based in Sausalito, 21 mi away

    59/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 211 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    323 Pine St Ste. F, Sausalito, CA 94965
    View profile for Local Plumbing(415) 636-9210

Top 50 of 412 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 Hillsborough, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Southgate HVAC Solutions595.0★ (28)7 mi
27Fuse HVAC, Refrigeration, Electrical & Plumbing584.9★ (216)21 mi
28Finest Heating & air584.9★ (87)17 mi
29San Francisco Expert Heating and Air584.9★ (69)16 mi
30Alaska Refrigeration Air Conditioning & Heating Co584.9★ (130)21 mi
31Glover & Son Heating & Air Conditioning [Recommended] Bay Area AC Repair584.8★ (122)19 mi
32HVAC Redwood City585.0★ (33)12 mi
331st Heating And Cooling East Palo Alto585.0★ (46)15 mi
34Eco Air Cooling and Heating585.0★ (28)12 mi
35California HVAC574.9★ (59)16 mi
36Trusted AC Repair Palo Alto575.0★ (36)15 mi
37Afterglow574.9★ (47)16 mi
38Inner Sunset Top Heating and Air575.0★ (30)14 mi
39Roofsky Air Duct Cleaning Service575.0★ (17)11 mi
40Excellent Repair574.8★ (43)16 mi
41Sam's Refrigeration & AC INC575.0★ (5)4 mi
42Rooter Hero Plumbing & Air of San Leandro574.8★ (36)16 mi
43Galaxy Heating & Air Conditioning574.7★ (25)13 mi
44The Clean Sky HVAC and Appliance Repair575.0★ (37)18 mi
45Alameda Island Heating & Air Conditioning LLC565.0★ (32)17 mi
46Fuse Service564.9★ (94)23 mi
47Green Mechanics Heating & AC Repair Specialists564.9★ (74)22 mi
48Lunar Air Systems564.9★ (35)17 mi
49Superior HVAC Contractor Palo Alto565.0★ (31)17 mi
501-888-Heat-Pumps565.0★ (45)20 mi

How we ranked emergency HVAC contractors in Hillsborough

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 Hillsborough: questions

Which HVAC contractors in Hillsborough are open 24/7?

25 on this list post 24/7 hours, including Heise's Plumbing, Sugar Bear Home Services, Cabrillo Plumbing, Heating & Air, Fuse Service and Albert Nahman Plumbing, Heating, and Cooling.

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

Heise's Plumbing is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency HVAC contractors in Hillsborough 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 Hillsborough

  1. October 2026: CR Scores recalculated for 412 hvac contractors serving Hillsborough.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages