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*The Angi rating for Insulation Service companies in Nikiski, 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 Nikiski, 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 March 09, 2026

Find Insulation pros in Nikiski

Avatar for PolySeal Insulation LLC
PolySeal Insulation LLC
4.9(
18
)

Serving Nikiski, AK and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"We've used PolySeal twice now to insulate our homes and have been extremely satisfied with the result."
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+5

15 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Xtreme Alaska Spray Foam, LLC
Xtreme Alaska Spray Foam, LLC
4.3(
6
)

Serving Nikiski, 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 Nikiski, 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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Insulation questions, answered by experts

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

An insulated garage door is a great long-term investment if it’s within your budget. They save energy and give the door year-round usability. In other words, the door pays for itself after a few nasty winters. Most modern garage doors already have a fair amount of insulation, so look into those options if you don’t feel comfortable splurging.

Installing sheets of plywood over attic insulation is a popular choice, especially in storage spaces. That said, insulation works by trapping hot air—so it needs extra space to expand and be effective, or you might reduce the energy efficiency of your home. 

It’s important that you never compress the insulation by installing flooring directly on top of it. In many houses, you’ll need to install a subfloor before putting plywood over insulation in your attic.

Actually, condensation can mean that your windows are more energy efficient because the seal keeps cold air out and warm air in. In some cases, windows with poor seals can lead to more condensation, but they may allow the cold and warm air to mix and reduce condensation. If you’re worried about whether or not your windows are properly insulated, have a pro assess them.

Depending on the size, insulation condition, and removal method, it can take anywhere from four hours up to twenty hours. Therefore, be prepared to split the projects into phases, or leave it to a professional. Insulation is an intermediate project with various risk factors and can be challenging to someone unfamiliar with the process.

The Nikiski, 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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