HVAC companies in Fond du Lac, WI 54935
2 HVAC companies, with local market data for this ZIP.
General contractors 34Roofing and exteriors 18Other construction trades 7Concrete and masonry 6Electricians 5Remodeling 4Excavation and demolition 4HVAC 2Painting 1Fences and decks 1Carpentry, drywall and windows 1
Area profitability, HVAC42 / 100Soft market, balanced field
Typical home value$237,000+5.4% in the past year
New homes permitted, 2025190Fond du Lac County
Homeowners59.5%17,778 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Air Tech HeatingHVAC contractor · 251 Griffith St, Fond du Lac(920) 924-6742 · WWW.AIRTECHHTG.COM · 4 drivers, 2 trucks
Ziegelbauer H.V.A.C., Inc.HVAC contractor · 136 S Brooke St, Fond Du Lac(920) 922-4770
HVAC in ZIP 54935 at a glance
Local building angle: Fond du Lac County permitted 190 new homes in 2025. 13% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.