6 HVAC Repair Contractors in Fond du Lac, WI
Top-Rated HVAC Repair Contractors in Fond du Lac
Air Tech Heating, Inc.
“With a 4.8-star average across 609 reviews, Air Tech Heating earns consistent praise for responsiveness and skill. Positive reviewers frequently mention…”
Ziegelbauer H.V.A.C. Inc.
“Of 33 reviews, 3 award 5 stars citing same-day response and technician professionalism, while 3 award 1 star citing persistent office communication failures…”
All HVAC Repair Contractors (6 total)
Fenner Plumbing & Heating Inc.
“All 12 reviewers awarded 5 stars, with multiple clients specifically naming John as the technician who…”
Caldera A/C & Heating LLC
“65 reviews yielding a 2.3-star average; both detailed reviews assign 1 star and describe no-show occurrences,…”
HVAC Repair Costs in Fond du Lac
Typical heating and cooling repair costs in Fond du Lac, by component.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call | $83 | $132 | $220 |
Thermostat replacement | $165 | $303 | $550 |
Blower motor replacement | $440 | $715 | $1,210 |
Heat exchanger replacement | $1,650 | $2,420 | $3,850 |
Ignitor replacement (gas furnace) | $165 | $275 | $440 |
Control board replacement | $330 | $605 | $990 |
Full system repair (major) Multi-component failure | $550 | $1,320 | $3,300 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Repair in Fond du Lac, WI: What to Expect
Fond du Lac sits within the Milwaukee metropolitan region's Great Lakes continental climate, where winter lows hover around 14 F and heating becomes essential from November through March. The brief but humid summers, peaking near 83 F, create a compressed cooling season of roughly 8 to 10 weeks each year. This pattern makes reliable heating equipment critical for local homeowners, and it drives steady demand for HVAC Repair in Fond du Lac. The area is served by six contractors who collectively maintain a respectable 4.2 average rating across hundreds of customer reviews.
When systems fail in this climate, repair costs can impact household budgets significantly. A diagnostic or service call typically runs $83 to $220, while thermostat replacement ranges from $165 to $550. More extensive repairs, such as blower motor replacement, can reach $440 to $1,210. Wisconsin does not require a statewide HVAC license, so contractor qualifications are determined through local municipal licensing, meaning homeowners should verify credentials with their city or county before scheduling work.
Customer experiences reveal clear differences in service quality among local providers. Air Tech Heating earns praise across 609 reviews for responsiveness and technical skill, with reviewers frequently mentioning technicians Matt, Teagan, and Kyle by name. Wesley Heating & Cooling also receives strong marks, with six of eight reviewers highlighting same-day emergency service and transparent pricing. In contrast, Ziegelbauer H.V.A.C. draws mixed feedback, with some customers noting same-day response and professional technicians while others cite communication failures and scheduling issues.