Shops that stay dry and warm
Garage & Pole Building Insulation in Green Bay, WI
Foam on steel and wood framing to stop dripping and hold heat in a heated shop.
- Free on-site estimates
- Written quote showing foam type, depth and R-value
- Moisture, roof leaks and old insulation checked first
Stopping Condensation on Steel
Garage and pole building insulation is a different problem from a house. A steel-sided pole shed or detached garage heats up fast and cools off fast. On a cold night with a heater running, warm air hits the underside of the steel roof and walls and condenses, so the building drips on whatever is parked inside. Closed-cell spray foam sprayed directly onto the steel stops that, because there is no gap between the insulation and the cold surface for moist air to reach.
Attached garages
An attached garage shares a wall, and often a ceiling, with the house. Insulating and sealing that shared wall and the floor of any room above keeps fumes and cold out of the house. If you heat the garage, insulating the outside walls and ceiling makes the heater work far less.
Detached shops and pole buildings
Around Brown County a lot of homes on acreage have a pole building for equipment, a hobby shop or storage. We spray closed-cell foam on the inside of the steel or on the wood girts and purlins, at a thickness that fits how you use the building. A heated workshop needs more than a cold storage building that only needs to stop dripping.
Doors, ceilings and coatings
Overhead doors and big slider openings leak a lot of air. We seal around frames and talk through door options. Exposed foam in some buildings needs a thermal or ignition barrier coating depending on use, and we tell you where that applies.
Outbuilding Work We Do
Foam and fill for spaces that are not part of the house.
Steel roofs and walls
Closed cell directly on steel panels to stop condensation.
Wood-framed garages
Foam or blown-in in walls and ceilings of attached and detached garages.
Shared garage walls
Sealing and insulating the wall and ceiling between the garage and the house.
Heated workshops
Thicker foam and sealed doors for shops kept warm all winter.

Published Costs That Apply to 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 HomeGuide (2026) and Fixr (2025) ranges are national and not specific to outbuildings. Wall height, steel profile, foam thickness and coatings all change the total. We measure the building and write the actual price on your estimate.
How an Outbuilding Job Goes
1. Walk the building
We measure walls and roof, check the steel and framing and ask how you use the space.
2. Quote by surface
Roof, walls, doors and coatings each listed with thickness.
3. Clear and mask
Equipment is moved or covered, and doors, windows and fixtures are masked.
4. Spray and finish
Foam goes on in passes, then any required coating.

Why Choose Us for Garage & Pole Building Insulation
Thickness fits the use
Cold storage and heated shops get different plans.
Coating rules explained
We tell you where a barrier coating is needed.
One crew for house and shop
Do the garage and the house attic in the same visit if you like.
Garage & Pole Building Insulation Questions
How much does it cost to spray foam a 20x20 garage?
A 20x20 garage has roughly 400 square feet of ceiling plus wall area that depends on height. HomeGuide lists closed cell at $3.00 to $5.00 per square foot and a typical minimum of $1,000 to $2,000. We measure and give you a written price.
Will foam stop my pole barn from dripping?
Closed-cell foam sprayed directly on the steel keeps warm, moist air from reaching the cold metal, which is what causes the drip.
Do I need a permit to insulate a pole building?
Rules differ by town and by how the building is used. Check with your local building office; we can tell you what we would install so you can ask the right question.
Can you insulate the garage door?
We seal around door frames. For the door itself, an insulated door usually works better than foam on the panels.

Garage & Pole Building Insulation Service Areas
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Get a Garage & Pole Building Insulation Estimate
Tell us the size of the building and whether you heat it.