❄️ Official Rankings
10 Best HVAC in Walnut Creek, CA (September 2026)
We compared 10 hvac serving Walnut Creek and Contra Costa County, California, and ranked the top providers by verified reviews, ratings, and local reputation — 3,111 customer reviews in all.
The 10 listed below hold an average rating of 5.0 out of 5, led by Chill Heating and Cooling. Updated for September 2026.
- HVAC ranked
- 10
- Average rating
- 5.0★
- Reviews analyzed
- 3,111
- Area code
- 925
Chill Heating and Cooling
⭐ 5.0 · 498 reviews
11 Cll Este, Walnut Creek, CA 94597
OTTER HVAC & ELECTRICAL
⭐ 5.0 · 170 reviews
2939 Santos Ln, Walnut Creek, CA 94597
Perfect Star Heating, Cooling, & Electrical
⭐ 4.9 · 1290 reviews
4415 Cowell Rd, Concord, CA 94518
TECHNO HVAC and REFRIGERATION
⭐ 4.9 · 583 reviews
904 Mossbridge Ct, Pleasant Hill, CA 94523
Galaxy Heating & Air Conditioning
⭐ 4.8 · 415 reviews
3301 Vincent Rd, Pleasant Hill, CA 94523
Eco Performance Builders
⭐ 5.0 · 30 reviews
1511 2nd Ave, Walnut Creek, CA 94597
Ariston Heating and Cooling
⭐ 5.0 · 25 reviews
1280 Boulevard Way Ste 310, Walnut Creek, CA 94595
HVAC listed here serve Walnut Creek, Contra Costa County, and nearby ZIP codes including 94595, 94596, 94597, 94598.