Attached & detached garage insulation
Closed-cell spray foam garage insulation for homes across Fargo, West Fargo, Moorhead and the surrounding area. A warmer garage through winter, a cooler one in summer, and a space you can park in, work in and store things in all year.
Locally Owned & Operated
Transparent Communication
Licensed & Insured
Nothing Due Until Completion
What we insulate
Garages get used in a lot of different ways. Tell us how you use yours, and we will recommend the right approach for your walls and roof deck. Insulating a shop or pole barn? See our pole barn and ag building insulation.
Keep the garage attached to your home warmer through winter and cooler through summer, so it is more comfortable to park in and use year-round whether or not you heat it.
Most garages are framed with 2x4 walls, which leave only about 3.5 inches of depth. Closed-cell spray foam makes the most of that limited space.
We can spray foam the underside of the roof deck, bringing the attic space into the insulated envelope so the garage rafters become usable storage.
Why closed-cell spray foam
For 2×4 garage walls, we recommend spray foam over fiberglass because it packs more insulating value into a shallow cavity. With 2×6 walls there is more depth to work with, and spray foam still gives the strongest performance and air seal. In a garage, air sealing is half the battle. Learn more about our spray foam insulation services.
Have questions? See common garage insulation questions below
Planning your project
A few details about your garage help us recommend the right approach and give you an accurate quote. For more background, read our guide to garage insulation options in Fargo-Moorhead.
An insulated garage will often hold near freezing through winter with no heat source. Many homeowners insulate first, live with it for a season, then decide whether they need heat.
Once the temperature is controlled, the garage becomes a safer place for paints, chemicals and seasonal items that can't handle a hard freeze.
If you want to store bikes, totes or holiday decorations in the rafters, spray foaming the roof deck keeps that space from freezing and overheating through the seasons.
Summer is the ideal time, and fall works well too before the hard freeze. Warmer temperatures help us manage moisture and give the foam what it needs to cure. We can add heat to work in winter, but keep in mind that adds some cost.
See our work
A sample of spray foam wall, ceiling and roof deck work from projects across the Fargo-Moorhead area. See more of our work
Garage insulation FAQ
Straight answers to the questions we hear most from homeowners. See our full FAQ
It depends on the size of the garage, how the walls are framed, and whether you are insulating the walls, the roof deck or both. We start every project with a free inspection and give you a clear quote. You don’t pay until the work is done.
An uninsulated garage sits at whatever temperature it is outside. An insulated garage will often hold near freezing through winter without a heater, stays cooler in summer, and is easier on your vehicles, the things you store and you.
Not necessarily. Many homeowners insulate first, live with the space for a season, and then decide whether they need to add heat. Often, they find they don’t.
For 2×4 walls, which are very common in garages, we recommend spray foam. A 2×4 cavity only gives you about 3.5 inches of depth, and spray foam packs more insulating value into that space. With 2×6 walls there is more room, but spray foam still gives the strongest performance and air seal.
Yes. Spray foaming the underside of the roof deck brings the attic space into the insulated envelope, so you can use the rafters for storage without everything up there freezing in winter and baking in summer.
Summer is ideal, and fall works well too as long as we get in before the hard freeze. Warmer temperatures help us manage moisture and let the foam cure properly.
Yes. We can close up the garage and add heat so we can manage moisture and hold the temperatures the foam needs to cure. Keep in mind that heating the space adds some cost to the project.
We are locally owned and operated out of West Fargo and serve homeowners within about a 200-mile radius, including Fargo-Moorhead, Detroit Lakes, Park Rapids, Ottertail and communities throughout central North Dakota and the Minnesota Lakes Area.
Polar Insulation is locally owned and operated out of West Fargo, ND and insulates garages within about a 200-mile radius, including Fargo, West Fargo, Moorhead, Detroit Lakes, Park Rapids, Ottertail and communities throughout central North Dakota and the Minnesota Lakes Area.
Tell us about your garage and how you use it. We will set up a free inspection, talk through your goals and recommend the right approach for your walls and roof deck. You don’t pay until the work is done.
