❄️ Official Rankings
10 Best HVAC in Janesville, WI (October 2026)
We compared 10 hvac serving Janesville and Rock County, Wisconsin, and ranked the top providers by verified reviews, ratings, and local reputation — 1,024 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by J. C. Heating and Cooling, Inc.. Updated for October 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 1,024
⭐ 5.0 · 449 reviews
300 S River St, Janesville, WI 53548
⭐ 4.9 · 456 reviews
928 Todd Dr #2, Janesville, WI 53546
⭐ 5.0 · 26 reviews
Janesville, WI 53545
⭐ 5.0 · 12 reviews
510 Tudor Dr, Janesville, WI 53546
⭐ 4.5 · 56 reviews
1506 Center Ave, Janesville, WI 53546
⭐ 4.8 · 4 reviews
2627 E County Rd O, Janesville, WI 53546
⭐ 5.0 · 2 reviews
607 S Arch St, Janesville, WI 53548
⭐ 5.0 · 2 reviews
4716 S John Paul Rd, Janesville, WI 53546
HVAC listed here serve Janesville, Rock County, and nearby ZIP codes including 53545, 53546, 53547, 53548.