• Most customers qualify for a $1,425 rebate through Focus On Energy*
    *Wisconsin homes only — not available in Illinois
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Injection foam wall insulation · Lake Geneva, WI

Lake Geneva homes were built for summer. Winter is another story.

Lake cottages that became year-round homes, older houses near downtown, ranches around Williams Bay and Fontana — plenty of homes around Geneva Lake have little or nothing in the walls. Cozy Walls fills them with injection foam from the outside, in a day or two, without touching a wall in your living space.
Erik, the owner, does every Lake Geneva estimate himself.
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Why Lake Geneva houses lose so much heat

A lot of homes around Geneva Lake started out as summer places. They were built to stay cool in July, not to hold heat in January — and when they became year-round homes, the walls usually stayed empty.
  • Converted lake cottages: often just siding, framing and an empty cavity. Filling the walls is usually the biggest comfort upgrade they can get.
  • Older homes near downtown Lake Geneva: plaster over lath, siding over sheathing, and nothing in between.
  • 1950s–70s ranches: empty walls, or fiberglass batts we can usually fill around. Loose blown-in insulation we check for at the estimate, because foam can’t flow through it.
The result: a house that’s perfect in summer and drafty from November to March.

What we do in Lake Geneva

Whole-home wall insulation

Every exterior wall filled with injection foam from the outside. Most homes in one day; two-story or over 1,400 sq ft in two.

The room over the garage

The cold bedroom or bonus room fixed by filling the walls around it and the garage below it.

Rim joist and basement walls

The leakiest spots in an older Lake Geneva basement, sealed with foam. Standard rim joist sealing is a flat $2,000.

Proof, not promises

Blower-door test and thermal scan before and after on every whole-home job.

What the day looks like

Real Cozy Walls jobs in Southern Wisconsin this month.

One row of siding off

As far as we open the house.

Foam in

Every cavity filled top to bottom.

Siding back on

You’d never know we were there.

What it costs in Lake Geneva

Most whole-home projects run $5,000–$12,000 depending on the size of the house, before the $1,425 Focus on Energy rebate check* that we file for you. Military ($750**), first responder, teacher, and 60+ ($500**) discounts apply on whole-home projects. Show us a lower written quote for the same scope and we’ll beat it by $500. Erik gives you the number in writing at the estimate, and it’s good for 30 days.

*Focus on Energy is a Wisconsin program. Rebates are not available on Illinois homes.

**Discounts apply to whole-home projects with a minimum job size of $5,000. One discount per household.

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Serving Lake Geneva, Williams Bay, Fontana, Delavan, and Genoa City.

Free estimate. Erik, the owner, comes out himself.

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No pressure. No sales script. Just Erik and real numbers.

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