Best HVAC companies in Diamond Bar, CA
The highest-scoring HVAC company in and near Diamond Bar is Biard & Crockett Plumbing, Heating, and Air Conditioning (score 89, 4.9 stars from 2,054 Google reviews). 75 companies meet the 5 Star standard within about 16 miles; the top 30 are ranked below.
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Biard & Crockett Plumbing, Heating, and Air Conditioning
Biard & Crockett Plumbing, Heating, and Air Conditioning has served Orange County communities since 1960. The company began as a plumbing business established by John Biard and Dave Crockett and later expanded into he…
89SCORE - 2
Steve's Plumbing Heating & Air Conditioning
Steve's Plumbing Heating & Air Conditioning is a family-owned company serving San Bernardino, Los Angeles, and Orange County from its Upland location. Founded in 1998 by Steve Pikschus, the company handles residential…
Family-ownedFree estimatesEmergency serviceFinancing available89SCORE - 3
Orange Coast Plumbing
Orange Coast Plumbing is a family-owned and operated plumbing and HVAC business serving Orange County, California, since 1977. Its technicians provide plumbing, heating, ventilation, and air conditioning work, includi…
Financing availableEmergency service89SCORE - 4
Moffett Plumbing & Air
Moffett Plumbing & Air is a family-owned and operated plumbing and HVAC company serving Orange County, California, since 1969. Its plumbing work includes installation and repair, drain cleaning, leak detection, sewer…
Financing availableEmergency service88SCORE - 5
Airplus of California Inc.
Airplus of California Inc. is an employee-owned HVAC company based in Corona, California, and serving Southern California since 1989. The company works with homeowners and home builders across the Ventura Coast, Los A…
Financing availableEmergency service88SCORE - 6
Eco Air Solutions
Eco Air Solutions is a family-owned and operated heating and cooling contractor founded by Don and Shayla Gunter in 2013. The company serves Orange, Riverside, San Bernardino, and Los Angeles counties in Southern Cali…
86SCORE - 7
Sano Plumbing Heating AC
Sano Plumbing Heating AC is a family-owned company serving Anaheim and Orange County with residential HVAC and plumbing work. The site states that the company has 14+ years in business and describes veteran-owned valu…
Financing availableEmergency service84SCORE - 8
Friends & Family HVAC
Friends & Family HVAC provides heating, cooling, and indoor air quality services in Corona and surrounding Southern California communities. The company reports 8 years of experience, and its NATE-certified technicians…
Financing availableEmergency service82SCORE - 982SCORE
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Haven Air Conditioning
Haven Air Conditioning provides residential and commercial HVAC services in Anaheim and the greater Orange County area. The company installs, repairs, and maintains air conditioning and heating systems, including furn…
Financing availableEmergency service82SCORE - 11
Happy Camper Heating, Plumbing, and AC Repair
Happy Camper Heating, Plumbing, and AC Repair serves Whittier homeowners with heating, cooling, and plumbing work. The family-owned company was built by Juan Zuniga and offers AC repair, maintenance, installation, and…
Financing availableEmergency service82SCORE - 1281SCORE
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Smartchoice Air Conditioning, Heating & Electrical
Smartchoice Air Conditioning, Heating & Electrical serves Fullerton and communities across Orange County with HVAC and electrical work. Family-owned since 2017, the company repairs, installs, and maintains air conditi…
Owner verified80SCORE - 1979SCORE
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We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Diamond Bar qualify, they'll appear here automatically.
Compare the top 10
| # | Company | Score | Google rating | Reviews | Years | Based in |
|---|---|---|---|---|---|---|
| 1 | Biard & Crockett Plumbing, Heating, and Air Conditioning | 89 | 4.9 | 2,054 | 66 | Orange |
| 2 | Steve's Plumbing Heating & Air Conditioning | 89 | 4.9 | 1,722 | 38 | Upland |
| 3 | Orange Coast Plumbing | 89 | 5.0 | 792 | 49 | Yorba Linda |
| 4 | Moffett Plumbing & Air | 88 | 4.9 | 1,445 | 57 | Orange |
| 5 | Airplus of California Inc. | 88 | 4.9 | 1,412 | 37 | Corona |
| 6 | Eco Air Solutions | 86 | 5.0 | 579 | 13 | Anaheim |
| 7 | Sano Plumbing Heating AC | 84 | 5.0 | 1,148 | – | Anaheim |
| 8 | Friends & Family HVAC | 82 | 5.0 | 1,405 | – | Corona |
| 9 | Four Seasons Heating and Air | 82 | 5.0 | 635 | – | Anaheim |
| 10 | Haven Air Conditioning | 82 | 5.0 | 623 | – | Anaheim |
HVAC companies in Diamond Bar: quick answers
Who is the highest-rated HVAC company in Diamond Bar, CA?
Biard & Crockett Plumbing, Heating, and Air Conditioning has the highest 5 Star Score among HVAC companies in and near Diamond Bar: 89 out of 100, with a 4.9 star Google rating from 2,054 reviews.
How many 5 Star HVAC companies serve Diamond Bar?
75 HVAC companies meet our standard within about 16 miles of Diamond Bar: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 30 have 36,935 Google reviews between them, averaging 4.94 stars.
How are these HVAC companies ranked?
By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.
HVAC companies near Diamond Bar
- Brea, CA (90)
- Yorba Linda, CA (103)
- Fullerton, CA (93)
- Anaheim, CA (111)
- Ontario, CA (35)
- Orange, CA (103)
- Corona, CA (46)
- Santa Ana, CA (101)
Other pros in Diamond Bar
- Plumbers (90)
- Electricians (29)
- Roofers (36)
- Garage door companies (34)
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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.