Looking for an energy auditor in Fontana-on-Geneva Lake, WI? Describe your project once and up to three certified energy auditors who work in Fontana-on-Geneva Lake and Walworth County get back to you with a quote. It's free and there is no obligation.
Fontana-on-Geneva Lake is home to about 1,861 people (2024 Census Bureau estimate), a stable community (−0.7% since 2020). With 554 people per sq mi, it is a semi-rural area. Older homes and long heating or cooling seasons make energy audits worthwhile here.
Fontana-on-Geneva Lake at a glance
- Population (Census Bureau estimate, 2024)
- 1,861 (−0.7% since 2020)
- Rank in Wisconsin
- 269th of 607 cities and towns
- Land area
- 3.4 sq mi
- Population density
- 554 people per sq mi (semi-rural)
- Type
- Village (Fontana-on-Geneva Lake village)
- Main county
- Walworth County
What to check before hiring in Fontana-on-Geneva Lake
- Certification: choose a RESNET or BPI certified professional.
- Rebates: in Wisconsin, check your utility's programs before booking: some require their own approved auditors.
- Test-in, test-out: a blower door test before and after upgrades shows the result.
- Price drivers: home size, tests included and report detail.
Useful official resources
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ENERGY STAR
Energy efficiency guidance for homes.
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RESNET
Find a certified HERS rater.
Services available in Fontana-on-Geneva Lake
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Home energy audit
Whole-home assessment with blower door test and infrared scan, with a prioritized list of upgrades.
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HERS rating
HERS Index rating of a new or existing home by a RESNET-certified rater, for code compliance or programs.
Frequently asked questions in Fontana-on-Geneva Lake
How much does an energy audit cost in Fontana-on-Geneva Lake, WI?
It depends on the home and the tests. Describe your home: auditors who serve Fontana-on-Geneva Lake reply with a quote.
How long does it take?
Usually two to four hours on site.
Will the auditor sell me upgrades?
Some do; an independent auditor gives a neutral list.
Which certified energy auditors will contact me?
Up to three independent certified energy auditors who serve Fontana-on-Geneva Lake and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.