❄️ Official Rankings
10 Best HVAC in New Haven, CT (October 2026)
We compared 10 hvac serving New Haven and South Central Connecticut Planning Region County, Connecticut, and ranked the top providers by verified reviews, ratings, and local reputation — 1,641 customer reviews in all.
The 10 listed below hold an average rating of 4.8 out of 5, led by CTS Heating & Cooling. Updated for October 2026.
- HVAC ranked
- 10
- Average rating
- 4.8★
- Reviews analyzed
- 1,641
- Area code
- 203
⭐ 5.0 · 79 reviews
207 Burwell Rd, West Haven, CT 06516
⭐ 5.0 · 38 reviews
8 Coyle Dr, West Haven, CT 06516
⭐ 4.8 · 135 reviews
325 Howard Ave, New Haven, CT 06519
⭐ 4.9 · 38 reviews
426 Whalley Ave, New Haven, CT 06511
⭐ 4.6 · 263 reviews
25 Spring St, West Haven, CT 06516
⭐ 4.6 · 79 reviews
64 Thompson St A207, East Haven, CT 06513
HVAC listed here serve New Haven, South Central Connecticut Planning Region County, and nearby ZIP codes including 06501, 06502, 06503, 06504, 06505, 06506, 06507, 06508, 06509, 06510, 06511, 06513 and more.