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*The Angi rating for Insulation Service companies in Seward, AK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Seward, AK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on June 20, 2025

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Avatar for Xtreme Alaska Spray Foam, LLC
Xtreme Alaska Spray Foam, LLC
4.3(
6
)

Serving Seward, AK and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"They are easy to deal with, did a great job, and cleaned up well. Very good experience all around."
Insulation metal shop
Metal shop in pal.er
Response time1 day
13 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Turnagain Spray Foam
Turnagain Spray Foam
5.0(
8
)

Serving Seward, AK and surrounding areas

In business since 2024

Free estimates

Small jobs welcome

"Great locally owned company. Quick to come take a look at what I needed done and started on the job right away. Prices are very competitive. Really professional and clean. Would highly recommend and will be using them again."
Wasilla Spray Foam Shop
Wasilla Spray Foam Shop
Response time1 day
2 neighbors recently requested a quote
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Avatar for Cozy Home Hawaii
Cozy Home Hawaii
4.5(
2
)

Serving Seward, AK and surrounding areas

Credit card accepted

"It was really good and they did more than I asked them to do. They also arranged my furniture and did the vacuumed. They even made suggestions and I felt comfortable. They really took care of everything and did a great job."
Pool & Spa Service and Repair Project
House Cleaning Project
Pool & Spa Service and Repair Project
Pool & Spa Service and Repair Project
Recommended by100%of homeowners
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Insulation questions, answered by experts

Vapor barriers in attics are a bit outdated and most areas no longer recommend them for attic spaces. For vented attics, the best method is usually to install drywall and cover it with latex paint before attaching insulation fiberglass, cellulose, or foam insulation. When renovating an attic to use as a living space, a contractor can guide you on the best way to cover insulation.

The thickness of floor insulation will depend on the R-value you plan to achieve. R-value varies on the type of material as well as its thickness and density. Insulation materials with low R-values can be layered to match the value of denser materials. As long as your floor insulation is packed tightly, seals the area from drafts, and doesn’t prevent ventilation, it can be as thick (or thin) as you need.

Mold can grow on garage ceiling insulation, which is why it’s important to install a vapor barrier behind the insulation and keep the space cooled and heated as you would your living area. Doing so will more or less eliminate the risk of mold growing on your garage ceiling insulation. You can also install a self-draining dehumidifier to help remove moisture, or opt for a foam board insulation or spray foam insulation that won’t harbor moisture and mold.

Three signs that you need crawl space insulation are drafts, high energy bills, and mold. Drafts can start in crawl spaces and cause hot or cold air to spread to the rest of your home through holes in the floors and walls. And even if your entire home is well-insulated, you can still feel an unchecked draft from your crawl space and in your utility bill. Uninsulated crawl spaces can let in air and moisture, and because they’re built directly on the ground and difficult to dry out, they are hotspots for mold and mildew.

Monolithic slabs don’t require insulation, but many homeowners choose to have their contractors install insulation under the slab during construction. This can help improve home efficiency even more and keep indoor temperatures more stable. Slab foundations are more energy-efficient than uninsulated crawl spaces and basements, and insulated slab foundations are more energy-efficient than insulated crawl spaces and basements.

The Seward, AK homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.

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