8 AC Repair Contractors in Fond du Lac, WI
Top-Rated AC 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 AC Repair Contractors (8 total)
Fenner Plumbing & Heating Inc.
“All 12 reviewers awarded 5 stars, with multiple clients specifically naming John as the technician who…”
Hilbert's Refrigeration Heating
“Seven of eight reviewers awarded five stars, praising same-day response times, professional demeanor, and…”
Caldera A/C & Heating LLC
“65 reviews yielding a 2.3-star average; both detailed reviews assign 1 star and describe no-show occurrences,…”
Fondy Heating & Air Conditioning
“Both reviewers awarded 5-star ratings, with TJ Hemauer specifically praising customer service and pricing…”
AC Repair Costs in Fond du Lac
Typical repair costs for Fond du Lac homeowners, by problem type.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call Usually credited toward repair | $83 | $132 | $220 |
Refrigerant recharge (R-410A) | $165 | $385 | $770 |
Capacitor replacement | $132 | $275 | $495 |
Fan motor replacement | $275 | $495 | $770 |
Compressor replacement | $880 | $1,980 | $3,080 |
Evaporator coil repair | $440 | $990 | $1,650 |
Labor (hourly rate) Per hour during business hours | $83 | $121 | $165 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Repair in Fond du Lac, WI: What to Expect
Fond du Lac sits along Lake Winnebago in Wisconsin's Great Lakes continental climate, where winters regularly dip to around 14 F and brief summers push highs near 83 F. Heating dominates from November through March, but the concentrated 8 to 10 week cooling season still creates meaningful demand for AC repair in Fond du Lac, particularly during July and August heat waves. Eight contractors serve the area, collectively maintaining a 3.9-star average across 765 customer reviews.
Diagnostic service calls typically range from $83 to $220, while refrigerant recharges for R-410A systems run $165 to $770 and capacitor replacements cost between $132 and $495. These figures reflect the scope of work, system age, and parts required for each call. Wisconsin does not mandate statewide HVAC licensing, so contractor credentials are governed by local municipal regulations in Fond du Lac and surrounding communities.
Air Tech Heating draws frequent mention in reviews, with clients citing specific technicians Matt, Teagan, and Kyle for their responsiveness and technical ability. Ziegelbauer H.V.A.C. earns praise for same-day response and professional service, though some reviewers note occasional communication delays. Wesley Heating & Cooling receives recognition for transparent pricing and emergency availability, with isolated scheduling concerns appearing in a minority of feedback.