Attic Air Sealing
Stop warm air from escaping through gaps in your attic floor - the first step to solving ice dams and uneven room temperatures.
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Serving Duluth, MN and surrounding areas. (218) 514-1692
Old insulation leaves cold spots and high bills. Open-cell spray foam fills every gap in your attic and walls so your home holds heat through a Duluth winter.
Open-cell foam insulation in Duluth expands to fill every gap, crack, and corner in your attic or wall cavities - sealing air and insulating in a single application. Most residential jobs are completed in one day, with the foam fully cured and performing the same evening.
A lot of Duluth homes - especially those built before 1970 in neighborhoods like Congdon, Lincoln Park, and the East Hillside - have insulation that has settled, compressed, or been disturbed over decades of renovation work. That means the gaps and channels those older homes developed are still wide open, and traditional fiberglass batts cannot reach them. Open-cell foam can.
If your home also has rooms that feel cold no matter how high the heat runs, it may be worth pairing this service with attic air sealing to address both the insulation and the air leakage at the same time.
If your gas or fuel oil bills have crept up year after year - or if your bill is noticeably higher than neighbors in similar homes - your insulation may be letting heat escape. In Duluth's eight-month heating season, a poorly insulated attic or rim joist zone can account for a large share of your total heat loss.
If your upstairs bedrooms or rooms along the north and west walls never quite warm up during a Duluth winter, cold air is likely getting in somewhere. Open-cell foam's air-sealing ability addresses the actual cause - air movement - not just the symptom.
If you have ever noticed frost on the sheathing in your attic on a cold January day, that is warm moist air from your living space escaping and freezing on contact with cold surfaces. It is a Duluth-specific warning sign that your attic has serious air leakage and needs attention.
Ice dams - ridges of ice that build along the eaves in winter - form when heat escapes through the attic and melts roof snow unevenly. They are common in Duluth because of heavy snowfall and extreme cold, and they can force water under your shingles if left unaddressed.
Our open-cell foam work covers attic ceilings, interior wall cavities, and rim joist areas across Duluth and the surrounding region. We also install attic air sealing alongside foam when the two services make sense together - which is often the case in homes built before the 1980s. Pairing them means you address both the thermal layer and the air movement pathways in a single project.
For homeowners deciding between foam types, we also offer spray foam insulation in closed-cell applications for below-grade spaces like crawl spaces and basement rim joists, where moisture resistance matters more. Your estimator will walk you through which product fits each part of your home, and you will never be pushed toward the more expensive option if the situation does not call for it.
Best for homeowners who want a complete air and thermal barrier at the attic floor or underside of the roof deck.
Suited to older homes where drilling and blowing has already been done but coverage was inconsistent.
Ideal for above-grade rim joists where moisture is not a concern and a cost-effective seal is the priority.
Duluth is one of the coldest cities in the continental United States, with average January temperatures around 8 degrees Fahrenheit and a heating season that stretches from October through April. At those temperatures, even a small gap in your attic floor lets in a rush of cold air that your furnace has to fight constantly. Open-cell foam is especially valuable here because Duluth's persistent northwest winds off Lake Superior drive cold air through tiny gaps that traditional insulation simply cannot plug.
The city's housing stock compounds the challenge. A significant share of homes in neighborhoods like Congdon, Lincoln Park, and the East Hillside were built before 1960 - many with original insulation that has settled or been disturbed by decades of renovation. In these homes, spray foam is often the most practical way to bring an attic or wall cavity up to a level of performance that makes a real difference on your heating bill, because it fills the irregular cavities and gaps that older framing creates.
We serve homeowners throughout the Duluth area, including Superior, WI and Hermantown, MN, where older housing stock and the same demanding climate make open-cell foam a common and practical choice.
We respond within one business day. When you reach out, have a rough sense of what area you want insulated - attic, walls, rim joists - so we can come to the estimate prepared. There is no charge for the visit.
We walk the areas you want insulated, take measurements, and look for anything that affects the job - existing moisture, obstructions, or old insulation that should come out first. You receive a written, itemized quote within a day or two.
If the scope requires a City of Duluth building permit, we pull it on your behalf. You do not have to navigate that process. Once permits are in order and you accept the quote, the crew is scheduled - typically within one to three weeks.
The crew arrives with spray equipment and completes most jobs in a single day. Plan to stay out of the sprayed area for about two hours while the foam cures. If a permit inspection is required, we coordinate that too.
Free estimate, no obligation. We respond within one business day.
(218) 514-1692We install open-cell foam in Duluth and 11 surrounding service areas - from Superior and Cloquet to Two Harbors and Ashland. That reach means we work on homes in every climate condition this corner of Minnesota and Wisconsin produces, not just the warmest zip codes.
We do not install foam over existing moisture problems or skip steps to finish faster. If your attic has a ventilation issue or an old leak that needs attention first, we will tell you before the crew arrives. That approach protects your home and your investment.
Minnesota requires residential contractors to hold a valid state license issued by the Department of Labor and Industry. You can look up any contractor - including ours - on the state's online registry before you sign anything. That license means you have real recourse if something goes wrong.
Minnesota Power offers rebates for qualifying insulation work, and we help homeowners file the paperwork. The program has an annual budget cap and can close before year end, so asking about rebates at the estimate stage gives you the best chance of capturing that money.
Our focus is on homes that have been fighting the Duluth cold for decades without the right insulation. When the work is done right, the difference is immediate - and the payback in lower heating bills follows quickly in this climate.
For more on spray foam standards and contractor qualifications, see the Spray Polyurethane Foam Alliance and the Building Performance Institute.
Stop warm air from escaping through gaps in your attic floor - the first step to solving ice dams and uneven room temperatures.
Learn moreClosed-cell spray foam for below-grade spaces like crawl spaces and basement rim joists where moisture resistance is the priority.
Learn moreOpen-cell foam installs in a single day - call now and we can often schedule within two weeks.