- Oconomowoc, Wisconsin
Wall Insulation in Oconomowoc, Wisconsin
A hundred-year-old resort town. Homes with character
everywhere — and insulation almost nowhere.
Cozy Walls insulates Oconomowoc’s historic homes and lake houses without touching
what makes them beautiful. Dime-sized holes, careful patches, done in a day or two.
- Veteran Owned & Operated
- $750** Military Discount
- Lifetime Transferable Warranty
- Focus on Energy® Trade Ally
- Serving Southern Wisconsin
**Discounts apply to whole-home projects with a minimum job size of $5,000. One discount per household.
- OCONOMOWOC’S HOUSING PROBLEM
The most charming housing stock in the county — built before wall insulation existed.
Oconomowoc grew up as a resort town, and it shows in the best way: Victorian and
early-1900s homes through the old downtown, grand houses ringing Lac La Belle and
Fowler Lake, and generations of lake cottages on Okauchee and the chain that became
year-round homes. Character everywhere.
Here’s what else those eras share: most of them were framed before insulated walls
were even standard practice. Behind the original siding and plaster, a huge share of
Oconomowoc’s wall cavities are simply empty — a hundred Wisconsin winters passing
straight through.
You know the symptoms:
- The A/C runs all day in July and the house still won’t drop below 79
- The furnace can’t hold 65 on a January night — and the radiators or registers never rest
- Every room near an exterior wall is drafty, every window seat is an icebox
- Pipes on an exterior wall that freeze every cold snap
- Frost on the inside of the walls on the coldest mornings
Your walls are the biggest surface of your home. We fix that — and prove it — in a day or two.
And your home’s exterior looks exactly the same when we leave.
- How It Works
Most Oconomowoc homes: done in one day; two-story or 1,400+ sq ft: two.
- 01 — MEASURE
Measure
Blower door test first — a hard number on how much air your home leaks. Thermal imaging shows exactly where.
- 02 — ACCESS
Access
A course of siding comes off and goes back on — or dime-sized holes through mortar joints on masonry. Original materials preserved, nothing torn open.
- 03 — FILL
Fill
Injection foam fills every cavity completely and cures in place — it never settles or sags.
- 04 — PROVE IT
Prove It
Siding back on, final thermal scan, and a second blower door test. Before and after, side by side. Our tests routinely measure at least 25% less air leakage — and up to 50%.
- REBATES & DISCOUNTS
Your rebate check. Your discount. Your call.
Oconomowoc homeowners qualify for Wisconsin’s Focus on Energy® incentives — a
check mailed to you, made out to you: a minimum of $1,425 and up to $2,025 on
qualifying wall insulation projects. We’re a Focus on Energy Trade Ally, and we handle
every piece of the paperwork.
On top of that: $750** military discount for anyone who has ever served in the United
States Armed Forces, $500** off for first responders, and $500** off for homeowners 60
and better.
**Discounts apply to whole-home projects with a minimum job size of $5,000. One discount per household.
Focus on Energy® Rebate
$1,425–$2,025
mailed directly to you
Military discount
$750**
First responder discount
$500**
60 & better discount
$500**
**Discounts apply to whole-home projects with a minimum job size of $5,000. One discount per household.
- WHY YOUR NEIGHBORS PICK US
Owned by a neighbor, not a franchise.
Cozy Walls is owned by Erik Hoffman — a retired Army Master Sergeant with 29 years of
service, a standard of strict attention to detail, and a shop down the road in Waukesha.
Our crew has insulated over 200 Wisconsin homes, and when you call for an estimate,
the person at your door is Erik — the owner, not a salesman.
Every job is backed by our Lifetime-of-the-Home, Transferable Warranty — the
foam is warranted never to settle, sag, or lose performance for as long as your house
stands, and it transfers to the next owner if you sell.
- Reviews
What your neighbors are saying
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- OCONOMOWOC FAQ
Local questions, straight answers
Do you charge a trip fee to come out to Oconomowoc?
Never. Estimates are free, and
there’s no travel charge.
Our home is over a hundred years old with original siding and plaster. Is this safe for it?
This is exactly the home injection foam was made for. Original wood siding comes
off in courses and goes back on undamaged; plaster interiors are never opened unless
you request inside drilling. Older homes deserve insulation that doesn’t require
demolition — that’s the entire point of our method.
We’re on the lake and only feel it in winter — wind straight off the ice. Will this actually help?
Wind-driven infiltration is the lake-home curse and the exact thing foam
kills. The blower door will measure it before and after — lakefront homes routinely post
our most dramatic improvements.
Will you handle the Focus on Energy paperwork?
Every page of it. You just cash the
check.