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Financing available — foam insulation from $99/month. See options
Veteran owned · Serving Southern Wisconsin
Injection foam wall insulation · Janesville, WI
The north and east side neighborhoods, the old GM-era ranches and two-stories, the brick and stucco homes near downtown — most of them 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 lives in the area and does every Janesville estimate himself.
It’s not bad construction — it’s the era. Most of the housing in Janesville went up between the 1920s and the 1970s, and Wisconsin builders of that time didn’t insulate walls the way we do now.
The result is the same on every one of them: a furnace that runs from December to March and a house that still isn’t warm.
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.
Usually an open rim joist or an empty exterior wall. We seal the rim joist and fill the walls around it.
The leakiest spots in an older Janesville basement, sealed with foam.
Blower-door test and thermal scan before and after on every whole-home job.
Real Cozy Walls jobs in Southern Wisconsin this month.
As far as we open the house.
Every cavity filled top to bottom.
You’d never know we were there.
Insulate all of your exterior walls with financing from $99/month ($6,800 at 12.4% APR for 120 months = 120 payments of $99.14; rates and terms vary by credit approval) — and Focus on Energy rebates are available on qualifying projects,* with the paperwork filed 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.
Free estimate. Erik, the owner, comes out himself.
No pressure. No sales script. Just Erik and real numbers.
