❄️ Official Rankings
10 Best HVAC in Fond du Lac, WI (October 2026)
We compared 10 hvac serving Fond du Lac and Fond du Lac County, Wisconsin, and ranked the top providers by verified reviews, ratings, and local reputation — 1,343 customer reviews in all.
The 10 listed below hold an average rating of 4.8 out of 5, led by Schneider Electric LLC. Updated for October 2026.
- HVAC ranked
- 10
- Average rating
- 4.8★
- Reviews analyzed
- 1,343
- Area code
- 920
⭐ 5.0 · 114 reviews
498 Willsher Dr, Fond du Lac, WI 54935
⭐ 4.8 · 617 reviews
251 Griffith St, Fond du Lac, WI 54935
⭐ 5.0 · 29 reviews
228 S Military Rd Ste 200, Fond du Lac, WI 54935
⭐ 4.6 · 382 reviews
40 E 1st St, Fond du Lac, WI 54935
⭐ 4.8 · 26 reviews
809 Wisconsin Ave, North Fond Du Lac, WI 54937
⭐ 4.8 · 24 reviews
683 Sullivan Dr, Fond du Lac, WI 54935
⭐ 5.0 · 12 reviews
735 Sullivan Dr, Fond du Lac, WI 54935
⭐ 4.6 · 46 reviews
218 S Main St, Fond du Lac, WI 54935
HVAC listed here serve Fond du Lac, Fond du Lac County, and nearby ZIP codes including 54935, 54936, 54937.