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Emergency HVAC Contractors in La Mesa, CA (2026)

Top 50 of 473 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 La Mesa: Anderson Plumbing, 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 La Mesa at a glance

Top emergency HVAC contractors in La Mesa at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Anderson Plumbing, Heating & Air664.8★ (4,443)El Cajon, 5 mi away24/7
2Mauzy Cooling, Heating, Plumbing, and Electrical664.8★ (4,710)El Cajon, 5 mi away24/7
3Bill Howe Plumbing, Heating & Air, Restoration & Flood Services664.8★ (4,875)San Diego, 7 mi away24/7
4Anderson Plumbing, Heating & Air664.8★ (6,056)San Diego, 9 mi away24/7
5Blue Diamond Heating and Air655.0★ (801)El Cajon, 5 mi away24/7
6Same Day Heating, Cooling, Plumbing644.8★ (1,658)San Diego, 7 mi away24/7
7Precision Temperature644.9★ (1,014)Lakeside, 8 mi away24/7
8Jackson & Foster Heating and Air Conditioning634.9★ (206)La Mesa24/7
9United Plumbing Heating Air & Electric634.9★ (1,612)San Diego, 12 mi away24/7
10Friar's Plumbing Heating and AC Repair634.9★ (626)San Diego, 8 mi away24/7

Call an emergency HVAC contractor in La Mesa 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 La Mesa, 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 473 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.

  19. #19 Air Pro Heating & Air

    Based in Chula Vista, 9 mi away

    62/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 268 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2434 Fenton St Ste 300, Chula Vista, CA 91914
    View profile for Air Pro Heating & Air(619) 693-3661

  23. #23 Legacy Home Energy

    Based in El Cajon, 4 mi away

    61/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 86 Google reviews, listed on Google as “Furnace repair service”.

    • 5.0★ from 86 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    270 E Douglas Ave, El Cajon, CA 92020
    View profile for Legacy Home Energy(619) 631-5372

Top 50 of 473 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 La Mesa, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Surf Bros HVAC615.0★ (110)7 mi
27Total Plumbing, Air & Electric | Residential and Commercial Plumbing614.9★ (85)4 mi
28Point Loma Electric, Plumbing, Heating & Air614.9★ (1,546)7 mi
29Point Loma Electric, Plumbing, Drains, and Water Heaters604.9★ (220)13 mi
30Comfort City Mechanical, INC604.9★ (47)4 mi
31Aerify Heating and Air604.7★ (125)10 mi
32PureAir Santee HVAC Services605.0★ (40)7 mi
33Santee AC & Heating Pros605.0★ (40)7 mi
34THA Heating Air & Plumbing Inc.604.5★ (97)7 mi
35Adams HVAC Contractors Santee595.0★ (28)5 mi
36Maximum Comfort Heating and AC Repair595.0★ (167)16 mi
37Professional KitchenAid Appliance Repair595.0★ (34)6 mi
38La Jolla Heating and Air Conditioning595.0★ (80)12 mi
39Ascend Plumbing594.9★ (119)13 mi
40Flaherty Heating and Air595.0★ (29)6 mi
41Ace Group Ki construction595.0★ (29)6 mi
42Samsung Appliance Repair594.9★ (30)6 mi
43Everlast HVAC Corp Heating, Cooling and Air Conditioning595.0★ (15)3 mi
44Smart Santee HVAC Repair595.0★ (22)5 mi
45FRYE Mechanical595.0★ (239)20 mi
46Hamel's Refrigeration Inc.595.0★ (20)5 mi
47Blue Diamond Heating and Air595.0★ (70)14 mi
48Golden Comfort AC & Heating Repair595.0★ (22)6 mi
49By the Book Plumbing, Heating Air Conditioning594.8★ (50)11 mi
50Ideal Plumbing Heating Air Electrical594.8★ (228)4 mi

How we ranked emergency HVAC contractors in La Mesa

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 La Mesa: questions

Which HVAC contractors in La Mesa are open 24/7?

25 on this list post 24/7 hours, including Anderson Plumbing, Heating & Air, Mauzy Cooling, Heating, Plumbing, and Electrical, Bill Howe Plumbing, Heating & Air, Restoration & Flood Services, Anderson Plumbing, Heating & Air and Blue Diamond Heating and Air.

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

Anderson Plumbing, Heating & Air is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in La Mesa 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?

24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for La Mesa

  1. October 2026: CR Scores recalculated for 473 hvac contractors serving La Mesa.
  2. October 2026: 5 duplicate listings merged.

More emergency and heating and cooling pages