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Emergency HVAC Contractors in Half Moon Bay, CA (2026)

Top 50 of 327 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 Half Moon Bay: 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 Half Moon Bay at a glance

Top emergency HVAC contractors in Half Moon Bay at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Heise's Plumbing624.9★ (1,454)San Francisco, 18 mi away24/7
2Fuse Service624.9★ (264)San Mateo, 9 mi away24/7
3Fuse service615.0★ (444)Palo Alto, 15 mi away24/7
4Sugar Bear Home Services614.9★ (369)South San Francisco, 13 mi away24/7
5Cabrillo Plumbing, Heating & Air614.9★ (966)San Francisco, 19 mi away24/7
6Cabrillo Plumbing, Heating & Air615.0★ (208)Menlo Park, 13 mi away24/7
7Bell Brothers Plumbing Heating & Air - Hayward604.7★ (863)Hayward, 21 mi away24/7
8Belmont HVAC Pro604.7★ (75)Belmont, 7 mi away24/7
9Service Hero Plumbing & Air604.5★ (1,252)Hayward, 21 mi away24/7
10Arch Plumbing Inc.594.9★ (286)San Francisco, 20 mi away24/7

Call an emergency HVAC contractor in Half Moon Bay 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 Half Moon Bay, 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 327 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 Half Moon Bay

    #1 Heise's Plumbing

    Based in San Francisco, 18 mi away

    62/100CR 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

  2. #2 Fuse Service

    Based in San Mateo, 9 mi away

    62/100CR Score

    Ranked #2 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

  3. #3 Fuse service

    Based in Palo Alto, 15 mi away

    61/100CR Score

    Ranked #3 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 Belmont HVAC Pro

    Based in Belmont, 7 mi away

    60/100CR Score

    Ranked #8 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

  10. #10 Arch Plumbing Inc.

    Based in San Francisco, 20 mi away

    59/100CR Score

    Ranked #10 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

  12. #12 Electric Air

    Based in Redwood City, 12 mi away

    59/100CR Score

    Ranked #12 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

  19. #19 Villquin Air Services

    Based in Hayward, 21 mi away

    58/100CR 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

  21. #21 Finest Heating & air

    Based in Palo Alto, 17 mi away

    58/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 87 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 87 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2100 Geng Rd Suit 210, Palo Alto, CA 94303
    View profile for Finest Heating & air(650) 223-2028

  25. #25 HVAC Redwood City

    Based in Redwood City, 13 mi away

    57/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1020 Eighth Ave, Redwood City, CA 94063
    View profile for HVAC Redwood City(213) 657-5385

Top 50 of 327 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 Half Moon Bay, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
261st Heating And Cooling East Palo Alto575.0★ (46)16 mi
27Trusted AC Repair Palo Alto575.0★ (36)15 mi
28Glover & Son Heating & Air Conditioning [Recommended] Bay Area AC Repair574.8★ (122)22 mi
29Roofsky Air Duct Cleaning Service575.0★ (17)10 mi
30Comfy Heating & Air Conditioning Inc.574.8★ (111)22 mi
31Excellent Repair574.8★ (43)16 mi
32Superior HVAC Contractor Palo Alto565.0★ (31)17 mi
33Woodside Heating and AC Repair565.0★ (10)10 mi
34⚒️ HVAC Contractors Near Me 🛠️ ⭐⭐⭐⭐⭐565.0★ (3)4 mi
35San Francisco Expert Heating and Air564.9★ (69)24 mi
36Expert Heating & Air Conditioning Mountain View CA565.0★ (34)20 mi
37Green Mechanics Heating & AC Repair Specialists564.9★ (74)24 mi
38Dale Plumbing & Heating563.6★ (32)12 mi
39California HVAC554.9★ (59)24 mi
40Cool Tech Mechanical Inc555.0★ (6)10 mi
41Inner Sunset Top Heating and Air555.0★ (30)21 mi
42Lunar Air Systems554.9★ (35)21 mi
43The Clean Sky HVAC and Appliance Repair555.0★ (37)23 mi
44Sam's Refrigeration & AC INC555.0★ (5)10 mi
45Afterglow554.9★ (47)24 mi
46Freon INC555.0★ (16)18 mi
47Rooter Hero Plumbing & Air of San Leandro554.8★ (36)22 mi
48Galaxy Heating & Air Conditioning554.7★ (25)21 mi
49Purcell Heating and Air555.0★ (5)13 mi
50Professional HVAC Contractor San Mateo545.0★ (38)11 mi

How we ranked emergency HVAC contractors in Half Moon Bay

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 Half Moon Bay: questions

Which HVAC contractors in Half Moon Bay are open 24/7?

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

Who is ranked #1 for emergency heating and cooling in Half Moon Bay, CA?

Heise's Plumbing is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency HVAC contractors in Half Moon Bay 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 Half Moon Bay

  1. October 2026: CR Scores recalculated for 327 hvac contractors serving Half Moon Bay.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages