Attic Insulation
Proper attic insulation stops heat from escaping through your roof - the single largest source of heat loss in most Duluth homes.
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Serving Duluth, MN and surrounding areas. (218) 514-1692
Drafty walls and high heating bills are a solvable problem. Spray foam seals every gap and crack, delivering consistent warmth from October through April and savings you can see on your first winter bill.
Spray foam insulation in Duluth, MN fills every gap, crack, and cavity as it expands - creating a fully airtight seal that batts and blown-in material simply cannot match. Most residential jobs, from a crawl space to a full attic, take half a day to a full day to complete.
If your home is losing heat through the rim joists, basement walls, or attic floor, you already know what it feels like: cold spots near the foundation, uneven room temperatures, and a furnace that never quite keeps up on the coldest January nights. Duluth sits in one of the harshest climate zones in the continental United States, and the long heating season - October through April - means even small insulation gaps cost you real money every year.
For homes where moisture is a concern alongside heat loss, our closed-cell foam insulation adds a built-in vapor barrier - a common need in Duluth basements and crawl spaces that face intense freeze-thaw cycles and Lake Superior humidity.
If your gas or fuel bill has been rising year over year without a change in habits, your insulation is likely failing. In Duluth's eight-month heating season, even modest heat loss adds up to hundreds of dollars annually. Spray foam closes the gaps that are quietly draining your budget every winter.
Stand near your basement walls or floor joists on a cold January day. If you feel moving air or a noticeable chill, the rim joists - the band of wood sitting on your foundation - are likely uninsulated. This is one of the most common heat-loss points in Duluth's older homes and one of the most cost-effective places to apply spray foam.
Frost forming on the inside of basement walls, or condensation collecting on window frames during cold snaps, means warm indoor air is meeting cold surfaces. Spray foam blocks both air movement and moisture, stopping this cycle at the source rather than just managing the symptoms.
A pipe that has frozen once will freeze again unless the underlying problem is fixed. In Duluth, temperatures can stay below zero for days at a time. Spray foam applied to crawl space walls and rim joists keeps those areas warm enough to protect your plumbing through even the hardest cold stretches.
We install both open-cell and closed-cell spray foam in attics, rim joists, basement walls, crawl spaces, and interior wall cavities. Open-cell foam is softer and works well in attics and interior walls where you need good thermal performance without a hard vapor barrier. Closed-cell foam is denser and rigid - it blocks both heat and moisture, making it the better choice for any below-grade space or exterior-facing surface in northern Minnesota. For homes where the attic is the primary concern, we often pair spray foam with our attic insulation service for maximum thermal coverage across the whole roof assembly.
Every spray foam job starts with an honest assessment of your home. We check the spaces you want insulated, flag any moisture issues that need to be addressed first, and explain exactly which type of foam makes the most sense for each location.
A good fit for attics, interior walls, and spaces where some moisture vapor permeability is acceptable.
Best for basements, crawl spaces, and exterior walls where you need both insulation and a moisture barrier.
One of the highest-impact, most cost-effective applications in Duluth's older homes.
Sealing the underside of the roof deck creates a tight thermal envelope and stops ice dam formation.
Protects pipes and floor systems from freezing and moisture damage in Minnesota's cold winters.
Turns a cold, damp basement wall into a sealed, insulated surface that stays drier year-round.
Duluth sits in one of the coldest climate zones in the continental United States. Temperatures regularly drop well below zero, and the heating season stretches from October through April. Homes in Duluth's established neighborhoods - Congdon Park, the East Hillside, the West End - were built between the 1890s and the 1950s, long before modern insulation standards existed. Many have little or no insulation in their rim joists, knee walls, or attic floors. Spray foam is especially well-suited to these older structures because it expands into the irregular, hard-to-reach spaces that batts and blown-in materials cannot fully cover.
Duluth's position on Lake Superior adds another layer of complexity. The lake's moisture combined with intense freeze-thaw cycles can push water into uninsulated wall cavities and crawl spaces, where it freezes, expands, and causes damage over time. Closed-cell spray foam acts as both insulator and moisture barrier - a practical combination for homeowners in Superior, WI and Hermantown, MN as well as throughout Duluth.
We respond within 1 business day to schedule a free in-home estimate. We will ask a few basic questions about which area you want insulated and any problems you have noticed.
We visit your home, inspect the space in person, check for moisture issues, and explain exactly which foam type makes sense for each area. The estimate is written and itemized - no vague totals.
For most full-envelope jobs, we pull the required City of Duluth building permit before work begins - protecting you with an independent city inspection of the finished work.
The crew completes most residential jobs in half a day to a full day. You will need to be out of the home for 24 hours after spraying while the foam cures. We walk you through the finished work before we leave.
We respond within 1 business day. There is no obligation to hire after the estimate. Submit below and someone from our office will call to schedule a free on-site assessment at a time that works for you.
(218) 514-1692We work throughout Duluth, Superior, Cloquet, Hermantown, and 8 other cities in the region. Local crews mean shorter lead times and no travel surcharges.
For projects that require a City of Duluth building permit, an inspector independently reviews the finished work - giving you an objective confirmation that the job was done to code.
You get a written estimate that breaks down foam type, application depth, and total cost before anything starts. No vague quotes and no surprise charges on the invoice.
A large share of Duluth's homes were built before 1960. Our crew works regularly in irregular attic spaces, stone foundations, and tight crawl spaces that demand careful technique.
According to the U.S. Department of Energy, properly air-sealed and insulated homes can cut heating costs significantly in cold climates. Spray foam insulation, once cured, does not sag, settle, or compress - it performs for the lifetime of the building when applied correctly.
Proper attic insulation stops heat from escaping through your roof - the single largest source of heat loss in most Duluth homes.
Learn moreClosed-cell foam provides maximum R-value per inch and a built-in moisture barrier, ideal for Duluth basements and crawl spaces.
Learn moreDuluth winters don't wait - schedule your free on-site assessment now and lock in a date before the season gets busy.