❄️ Official Rankings
10 Best HVAC in Bethel, CT (August 2026)
We compared 10 hvac serving Bethel and Western Connecticut Planning Region County, Connecticut, and ranked the top providers by verified reviews, ratings, and local reputation — 4,692 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Carmine’s Plumbing, Heating & Air Conditioning. Updated for August 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 4,692
- Area codes
- 203, 475
Carmine’s Plumbing, Heating & Air Conditioning
⭐ 4.9 · 2306 reviews
92 Sand Pit Rd, Danbury, CT 06810
Service Stars
⭐ 4.9 · 1468 reviews
43C Beaver Brook Rd, Danbury, CT 06810
Hefferon Heating & Cooling LLC
⭐ 4.9 · 402 reviews
37A Padanaram Rd, Danbury, CT 06811
Doctor Dryer Vent & Air Duct Cleaning And Chimney Sweep
⭐ 4.9 · 56 reviews
162 Greenwood Ave, Bethel, CT 06801
Northern Comfort Mechanical (Plumbing, Heating, & Air Conditioning)
⭐ 4.9 · 54 reviews
178 Osborne St, Danbury, CT 06810
New England Air Systems LLC
⭐ 4.7 · 83 reviews
26 Federal Rd, Danbury, CT 06810
HVAC listed here serve Bethel, Western Connecticut Planning Region County, and nearby ZIP codes including 06801.