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WI directory

Generator installation in Wisconsin

WI · 194 researched · 130 dedicated pages

194 standby generator installers with website signal in Wisconsin, whatever brand they carry. Sorted by generator-specific review count, then website signal.

194
Researched
130
Dedicated pages
16
Repeated signal
State market notes

Installer landscape

Wisconsin (Upper Midwest) is a natural gas first standby market. Heating fuel leans natural gas (64.9% of occupied homes on utility gas, ACS 2024), so many installs start with meter capacity and gas-line sizing rather than a new tank. Propane still shows up in rural counties (11.7%). In 2024, Wisconsin electricity customers averaged 4.4 hours without power (well below the 10.2-hour U.S. average; EIA Electric Power Annual Table 11.3). Dominant drivers in this research pass: winter storms, severe wind. This directory lists 198 researched installers with website generator signal (134 with a dedicated generator page, 16 with repeated signal, 48 with at least one clear mention). That is a solid market by national listing volume, ranking #19 of 50. Top city clusters in the directory: Madison (8), Milwaukee (6), Delafield (4), Neenah (4).

Fuel, codes, and cost context

All-in price usually hinges on electrical scope, transfer equipment, and gas-line/meter work more than a tank package. NEC edition in effect in this research pass (verified as of August 2026): 2017. We do not publish fabricated statewide average install prices.

Before you call

Wisconsin is still on the 2017 NEC with amendments, so 2023-and-later section numbers (for example 445.19) do not map cleanly. Propane heats 11.7% of homes alongside a gas-heavy majority. Use the 198 researched listings below as a starting point, not an endorsement. Verify licensing, insurance, references, and recent standby work yourself.

Fuel and outage figures sourced from ACS 2024 and EIA 2024; NEC and licensing notes verified as of 2026-08-07. Not legal advice. Confirm with your AHJ.

Search near your WI ZIP

If the state list is too broad, enter your ZIP and sort by distance.

Browse by metrowithin 75 miles

Each metro page lists installers with an office within 75 miles. Many shops travel for jobs, so the count includes nearby counties, not just city-limits addresses.

Milwaukee80Madison82Green Bay51Appleton67Eau Claire30La Crosse14Wausau39
Job type in WI

Narrow by whole-house / standby work or service and maintenance signal.

Whole-house 118Service 31
Brand signal in WI

State pages for installers whose websites mention a brand you already have in mind. Brand mention is not dealer certification.

Generac dealers & installers 63Kohler 21Cummins 3Briggs & Stratton 9

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All Wisconsin installers

Every installer we found in this view. Open a profile for website signal, reviews, and contact paths.

Straight answers

Common questions

How many generator installers are in Wisconsin?
194 installers show standby generator signal on their websites across 112 cities in Wisconsin. Of those, 130 have a dedicated generator page, 16 have repeated signal, and 48 have at least one mention worth checking.
What cities have the most installers in Wisconsin?
Madison (8), Milwaukee (6), Delafield (4), Neenah (4), Waukesha (4).
What fuel should I expect for a standby generator in Wisconsin?
ACS 2024 heating fuel mix: utility gas 64.9%, propane 11.7%, electric 18.3%, fuel oil 1.1%. That mix predicts whether most installs tap a gas meter or need a propane tank. Confirm fuel path for your address.
How are these sorted?
Generator-specific review count first (after any featured rows), then website signal, then overall Google review count. Use the left filters to require 1+, 5+, or 10+ generator reviews.
Are these recommendations?
No. Independently researched listings, not endorsements. Use this as a starting point, then check licensing, references, and recent work before you sign.

Looking for first-call questions? Read questions to ask a generator installer. Signal labels mean dedicated generator page, repeated site signal, or generator signal found.