Dry, usable outbuildings
Garage & Shop Insulation in Oshkosh, WI
Foam sprayed directly on steel or framing so the building stops sweating.
- Free on-site estimates
- Written quote by area with R-values
- Damp basements and roof leaks flagged before work
Why Shops Drip and How Foam Stops It
Garage and shop insulation is mostly about condensation. Steel siding and roofing get as cold as the outside air. When warm, humid air inside a shop touches that cold steel, the moisture condenses and drips. Run a heater on a January morning and the ceiling can rain on your work. Closed-cell spray foam sprayed directly on the steel leaves no gap for that air to reach the metal.
Attached garages
The wall and ceiling between an attached garage and the house should be sealed and insulated. That keeps exhaust fumes and cold out of the house, and it warms any bedroom over the garage. If you heat the garage, insulating the outer walls and ceiling cuts the heater's run time.
Detached shops and pole buildings
We spray closed-cell foam on steel panels or wood girts and purlins at a thickness that suits how you use the building. Cold storage needs enough to stop dripping; a heated shop needs more. HomeGuide lists closed cell at $3.00 to $5.00 per square foot installed.
Doors and coatings
Big doors leak air, so we seal their frames. Depending on use, exposed foam may need a thermal or ignition barrier coating, and some towns have permit rules for heated outbuildings. We explain what applies.
Outbuilding Work
Garages, shops and pole buildings.
Steel panels
Closed cell directly on roof and wall steel.
Wood-framed garages
Foam or blown-in in walls and ceiling.
Shared garage wall
Sealing and insulating between the garage and house.
Barrier coatings
Applied where the building's use requires it.
Published Costs for Garages and Shops
| Job | Range and source |
|---|---|
| Closed-cell spray foam, installed | $3.00 to $5.00 per sq ft (HomeGuide) |
| Open-cell spray foam, installed | $1.50 to $3.50 per sq ft (HomeGuide) |
| New construction spray foam | $2.75 to $6.50 per sq ft (Fixr) |
| About 1,000 sq ft of foam | $1,500 to $5,000 (HomeGuide) |
| Blown-in, per sq ft | $1.00 to $2.80 (HomeGuide); $1.65 to $3.80 (Fixr) |
| Typical spray foam minimum | $1,000 to $2,000+ (HomeGuide) |
These are general national ranges from HomeGuide (2026) and Fixr (2025), not specific to outbuildings. Height, steel profile, thickness and coatings move the total. We measure the building and the written estimate is the price.
How a Shop Job Goes
1. Walk through
Measure and ask how you use the space.
2. Quote
Thickness, coatings and doors itemized.
3. Prep
Equipment covered or moved, openings masked.
4. Spray
Foam in passes, then any coating.
Why Choose Us for Garage & Shop Insulation
Planned around use
Storage and heated shops get different thicknesses.
Coatings explained
We tell you where barriers are required.
One visit for everything
House and shop quoted together if you like.
Garage & Shop Insulation Questions
How much would it cost to spray foam a 20x20 garage?
With 400 square feet of ceiling and roughly 600 to 800 square feet of walls depending on height, closed cell at $3.00 to $5.00 per square foot (HomeGuide) adds up quickly. We measure and give a written price.
Will foam stop condensation in my pole barn?
Yes. Closed-cell foam on the steel keeps warm air off the cold metal.
Can foam be sprayed in a cold garage?
Surfaces must be warm enough for the foam to bond. In winter we may heat the space first.
Should I insulate the garage door?
We seal around the frame. An insulated door usually works better than foam on the panels.
Garage & Shop Insulation Service Areas
- Spray Foam Insulation in Oshkosh, WI
- Spray Foam Insulation in Neenah, WI
- Spray Foam Insulation in Algoma, WI
- Spray Foam Insulation in Clayton, WI
- Spray Foam Insulation in Omro, WI
- Spray Foam Insulation in Winneconne, WI
- Spray Foam Insulation in Fond du Lac, WI
- Spray Foam Insulation in North Fond du Lac, WI
- Spray Foam Insulation in Ripon, WI
- Spray Foam Insulation in Berlin, WI
- Spray Foam Insulation in Waupun, WI
- Spray Foam Insulation in Chilton, WI
- Spray Foam Insulation in New London, WI
Get a Garage & Shop Insulation Estimate
Tell us the building size and whether you heat it.