Ziegelbauer H.V.A.C. Inc.
Fond Du Lac, WI Indoor Air Quality · 36+ yrs
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
⏱ 36+ years in business
Review sentiment: 60/100
Overview
Ziegelbauer H.V.A.C. lists ERV/HRV ventilation as a specialty for whole-home fresh-air systems.
ERV/HRV ventilation is listed as a core Indoor Air Quality specialty in Fond du Lac. Years in business: 35+ years since 1990. Flat-Rate Pricing is advertised, with Free Estimates available on the website.
Score breakdown
Editorial Review
40
46%
Google Rating
70
17%
Local Search Rank
50
9%
Review Sentiment
60
15%
Years in Business
100
4%
Review Volume
41
9%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
Pros & cons
Pros
Strengths
- Long-established (36+ years in business)
Cons
- Mixed customer sentiment (score 60/100)
When to choose them
- You value a long-tenured local operator (36+ years in business)
Service area
Published pricing
Pricing model
-
Upfront pricing
As published: Upfront pricing"…ct Form No-obligation estimates · Fast response · Upfront pricing Ziegelbauer H.V.A.C. When Comfort Matters Most. S…"
Estimates
-
Free estimates
As published: Free estimates"…bauer H.V.A.C. Home Our Services Contact Us Get a Free Quote HVAC When Comfort Matters Most Ziegelbauer H.V.A.…"
Guarantees & credentials
- Licensed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
📞
🌐
✉️
📍
🕒
Call for hours or check website for current hours or check website for current hours
Frequently asked questions
What are the pros of Ziegelbauer H.V.A.C. Inc.?
Based on public records and customer reviews: Long-established (36+ years in business); Emergency response: 24/7; Free estimates; Flat-rate, upfront pricing.
What are the cons of Ziegelbauer H.V.A.C. Inc.?
Concerns flagged from public records and reviews: Mixed customer sentiment (score 60/100).
When should I choose Ziegelbauer H.V.A.C. Inc.?
Choose them if: You value a long-tenured local operator (36+ years in business).
What is the Vouched Score for Ziegelbauer H.V.A.C. Inc.?
52/100. Top contributing signals: Years In Business 100/100, Google Rating 70/100+ Review Sentiment 60/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How long has Ziegelbauer H.V.A.C. Inc. been in business?
Ziegelbauer H.V.A.C. Inc. has been operating for 36+ years in Fond du Lac, WI.
How can I contact Ziegelbauer H.V.A.C. Inc.?
Call Ziegelbauer H.V.A.C. Inc. at +1-920-922-4770. Address: 136 S Brooke St, Fond du Lac, WI 54935, USA.
What does indoor air quality service typically cost when working with a Fond du Lac, WI provider like Ziegelbauer H.V.A.C. Inc.?
Whole-house HEPA air purifier typically runs $1,400–$3,700, and UV-C germicidal lamp runs $275–$1,100 in Fond du Lac, Wisconsin. These are area-wide market estimates, not Ziegelbauer H.V.A.C. Inc.'s quotes. For an exact price, request a written estimate from Ziegelbauer H.V.A.C. Inc..
What pricing terms does Ziegelbauer H.V.A.C. Inc. publish on their website?
Ziegelbauer H.V.A.C. Inc.'s website publishes: Upfront pricing, Free estimates. Promotions and plans change — confirm currently-available terms with Ziegelbauer H.V.A.C. Inc. before acting.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Ziegelbauer H.V.A.C. Inc. (this company) |
52/100 | 4.1★ (30+) | 36+ |
Air Tech Heating, Inc. ⭐ Highest Vouched Score · ⭐ Best for Same-Day Replacement · ⭐ Best for Commercial AC Replacement |
88/100 | 4.8★ (615+) | 29+ |
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Profile last updated July 27, 2026.