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ContractorsRanked

Best HVAC Contractors in Montclair, CA (2026)

1,003 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Montclair: Klaus & Sons Plumbing, Heating & Air Conditioning, CR Score 93/100; 4.9★ from 977 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Steve's Five Star Service, posts 24/7 hours; ranked #2 of 1,003.

  3. 3

    Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 1,003 ranked; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

1,003 Montclair HVAC contractors are ranked here by CR Score, from 8 published factors. 348 are open 24/7, 770 open Saturdays and 520 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,003 rated businesses.

Top 10 HVAC contractors in Montclair at a glance

Top 10 HVAC contractors in Montclair at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Klaus & Sons Plumbing, Heating & Air Conditioning934.9★ (977)Montclair24/7Overall
2Steve's Five Star Service934.9★ (1,292)Upland, 2 mi away24/7Emergencies
3All Pro Cooling, Heating, Plumbing & Electrical934.8★ (7,425)Ontario, 8 mi away24/7Most reviews
4Rooter Hero Plumbing & Air924.8★ (802)Montclair24/7—
5Metz Air Control924.9★ (969)Chino, 5 mi away24/7—
6RC Air Heating & Air Conditioning Service914.9★ (705)Rancho Cucamonga, 6 mi away24/7—
7Service Hero Plumbing, HVAC, and Electrical904.8★ (1,506)Covina, 11 mi away24/7—
8Airplus of California Inc.904.9★ (1,325)Corona, 14 mi away24/7—
9MSP HEATING AND AIR CONDITIONING905.0★ (1,203)Jurupa Valley, 18 mi away24/7—
10Friends & Family HVAC904.9★ (1,213)Corona, 15 mi away24/7—

The 1,003 best HVAC contractors in Montclair, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  5. #5 Metz Air Control

    Based in Chino, 5 mi away

    92/100CR Score

    Ranked #5 because of its Google rating and availability: 4.9★ from 969 Google reviews, open 24/7.

    • 4.9★ from 969 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13784 Monte Vista Ave, Chino, CA 91710
    View profile for Metz Air Control(909) 925-0513

  12. #12 Home Comfort USA

    Based in Anaheim, 17 mi away

    89/100CR Score

    Ranked #12 because of its Google rating and availability: 4.8★ from 2,813 Google reviews, open 24/7.

    • 4.8★ from 2,813 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1120 N Tustin Ave, Anaheim, CA 92807
    View profile for Home Comfort USA(714) 467-2932

  19. #19 Canyon City Air

    Based in San Dimas, 8 mi away

    89/100CR Score

    Ranked #19 because of its Google rating and availability: 5.0★ from 122 Google reviews, open 24/7.

    • 5.0★ from 122 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    515 W Allen Ave STE 2A, San Dimas, CA 91773
    View profile for Canyon City Air(626) 208-6354

  21. #21 Veteran Air

    Based in Anaheim, 19 mi away

    89/100CR Score

    Ranked #21 because of its Google rating and availability: 4.9★ from 1,091 Google reviews, open 24/7.

    • 4.9★ from 1,091 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2925 E Ricker Way, Anaheim, CA 92806
    View profile for Veteran Air(714) 426-9420

HVAC contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,003 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Montclair, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Sol Air Hvac LLC884.9★ (112)7 mi
27Air One Air Conditioning, Heating, & Plumbing884.9★ (786)19 mi
28Icee Hot Air Conditioning and Heating885.0★ (101)9 mi
29RighTime Home Services884.7★ (3,741)21 mi
30ABC Heating & Air Conditioning885.0★ (392)5 mi
31Love Home Services885.0★ (65)6 mi
32HMS Plumbing & Construction885.0★ (304)18 mi
33Service Hero Plumbing, HVAC, and Electrical884.8★ (1,840)22 mi
34Titan Air Conditioning884.9★ (439)17 mi
35All City Plumbing, Air & Electrical885.0★ (1,899)16 mi
36Solace Plumbing Heating and Air884.9★ (69)6 mi
37Ace Pelizon Plumbing, Heating & Cooling874.7★ (426)11 mi
38Honest Pro Air Conditioning & Heating - HVAC874.9★ (89)8 mi
39New Age Air, Inc.875.0★ (151)14 mi
40Year Round Heating & Air Conditioning875.0★ (270)18 mi
41Purcell AC Repair Services875.0★ (32)4 mi
42Absolute Airflow Air Conditioning, Heating and Plumbing874.8★ (571)17 mi
43Ace Home Heating & Air Conditioning874.7★ (1,176)18 mi
44Yarmouth Heating & Cooling875.0★ (27)3 mi
45Air Med Heating & Air Conditioning875.0★ (303)8 mi
46Eco Air Heating & Cooling875.0★ (305)21 mi
47Icee Hot Air Conditioning & Heating875.0★ (236)19 mi
48Rooter Hero Plumbing & Air874.9★ (1,637)3 mi
49AIR NOW HEATING & COOLING INC875.0★ (81)13 mi
50Aire Serv of Pasadena874.9★ (394)20 mi

Also serving Montclair

20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Montclair
BusinessGoogle ratingDistance
4 Points A/C and Heating4.9★ (949)23 mi
ABR Air Conditioning, Heating, and Refrigeration5.0★ (2)8 mi
Accurate Electric, Plumbing, Heating and Air4.9★ (69)5 mi
American Plumbing, Heating, Air & Electrical5.0★ (57)8 mi
Belflo Inc.5.0★ (1)In Montclair
BOMING Air Conditioning & Heating HVAC5.0★ (2)8 mi
Cooling & Heating Repair4.8★ (402)17 mi
Golden Construction Chino5.0★ (2)5 mi
GOMEZ Air Conditioning, LLC1.0★ (2)8 mi
Integrity Mechanical Corporation5.0★ (2)7 mi
M.A. Ogg Heating & Air Conditioning, Inc.3.0★ (2)In Montclair
Mac Refrigeration & Air Conditioning3.0★ (2)8 mi
Meza's Hvac5.0★ (2)5 mi
N & S Heating, Air Conditioning & Electrical4.5★ (2)3 mi
Professional Heating & Air3.0★ (2)7 mi
RKM Heating and Air Conditioning4.9★ (1,073)25 mi
Salute Air Conditioning and Heating5.0★ (108)13 mi
Synergy Mechanical Inc1.0★ (2)6 mi
Viking Air Inc.5.0★ (2)6 mi
West-Tech Mechanical Inc3.0★ (2)In Montclair

How much do HVAC contractors cost in Montclair?

National price ranges in USD, not adjusted for Montclair. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Montclair?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in California

In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.

Jobs of $1,000 or more in labor and materials (from January 1, 2025).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in California

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

How we ranked Montclair HVAC contractors

We scored 1,003 Montclair HVAC contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

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 fromIn Montclair data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Montclair: frequently asked questions

Who is the best HVAC contractor in Montclair?

By CR Score, the highest-ranked HVAC contractor in Montclair, CA is Klaus & Sons Plumbing, Heating & Air Conditioning with a CR Score of 93/100. It has 4.9★ from 977 Google reviews. It is open 24/7. Steve's Five Star Service (#2) and All Pro Cooling, Heating, Plumbing & Electrical (#3) follow. We ranked 1,003 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Montclair?

ContractorsRanked ranks 1,003 HVAC contractors serving Montclair, CA. 2 of them are based in Montclair; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Montclair are open 24/7?

348 ranked HVAC contractors in Montclair post 24/7 hours. The highest-ranked are Klaus & Sons Plumbing, Heating & Air Conditioning (#1), Steve's Five Star Service (#2) and All Pro Cooling, Heating, Plumbing & Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Montclair work on weekends?

770 of 1,003 ranked HVAC contractors post Saturday hours and 520 post Sunday hours. The highest-ranked open Saturdays are Klaus & Sons Plumbing, Heating & Air Conditioning (#1), Steve's Five Star Service (#2) and All Pro Cooling, Heating, Plumbing & Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does ac replacement cost in Montclair?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Montclair. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Montclair HVAC contractors have?

The median Google rating among 1,003 rated HVAC contractors in Montclair is 4.9★, with a median of 18 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #3. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Montclair?

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

Update log for Montclair

  1. October 2026: CR Scores recalculated for 1,003 hvac contractors serving Montclair.
  2. October 2026: 7 duplicate listings merged.

More HVAC contractors and Montclair pages

Other trades in Montclair