❄️ Official Rankings
10 Best HVAC in Fremont, CA (August 2026)
We compared 10 hvac serving Fremont and Alameda County, California, and ranked the top providers by verified reviews, ratings, and local reputation — 1,380 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by AIS Heating & Air Conditioning. Updated for August 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 1,380
- Area code
- 510
AIS Heating & Air Conditioning
⭐ 4.9 · 838 reviews
4432 Enterprise St Ste a, Fremont, CA 94538
Chill Heating and Cooling
⭐ 5.0 · 42 reviews
43266 Christy St, Fremont, CA 94538
Ace HVAC and Appliance Repair
⭐ 4.8 · 71 reviews
43156 Brighton Common, Fremont, CA 94538
Flash Chimney Fremont and Ducts
⭐ 5.0 · 22 reviews
39055 Hastings St, Fremont, CA 94538
TOTO Heating And Cooling
⭐ 5.0 · 13 reviews
41111 Mission Blvd #105, Fremont, CA 94539
Sharkaire
⭐ 4.7 · 30 reviews
4400 Enterprise Pl suit-a, Fremont, CA 94538
HVAC listed here serve Fremont, Alameda County, and nearby ZIP codes including 94536, 94537, 94538, 94539, 94555.