Get matched with top insulation pros in Girdwood, AK

Q: Should all interior and exterior walls be insulated?

• <div><p>While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.</p><p>However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.</p></div>

Q: Does plaster insulate better than drywall?

• <div><p>Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.</p></div>

Q: Does insulating an unheated garage cause mildew?

• <div><p>In some cases, yes, insulating an unheated garage can lead to mold and mildew. The issue with insulating a garage is that the interior will warm up and cool down more slowly than the exterior air, which can cause condensation inside the space. Where there is moisture, there is likely to be mold and mildew over time. Installing a vapor barrier can help avoid moisture and mildew problems in an insulated garage.</p></div>

Q: How long does spray foam insulation last?

• <div><p>Spray foam insulation can last between 80 and 100 years, depending on the type. Closed-cell spray foam is more durable, while open-cell foam is more susceptible to moisture damage and deterioration. It's important to consult a professional installer to understand which type of foam will be used and its specific longevity. Additionally, be aware that some spray foams can damage plastic piping, so if you have PVC or CPVC pipes, discuss this with your installer.</p></div>

Q: How do I reduce heat in my upstairs rooms?

• <div><p>The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.</p></div>

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Verified Reviews for Insulation Service pros in Girdwood, AK

*The Angi rating for Insulation Service companies in Girdwood, 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 Girdwood, 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 August 02, 2023

Reviewed in August 2023
Redeemed Roofing did an excellent job of replacing the roof on our home for a fair price. We are very satisfied with the entire experience dealing with Kurtis and the Redeemed Roofing crew from start to finish. We highly recommend Redeemed Roofing and Kurtis Smith.
Redeemed Roofing
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Reviewed in November 2022
Great work and a reasonable cost!
DS Asphalt
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Reviewed in January 2021
Professional, polite, informative, and a job well done. We had a long list of electrical work that needed to be done. Being a first time homeowner I had a lot of questions, and they were more than happy to take the time to answer and give advise. We had outside lights & receptacles replaced,...
Supreme Electric, LLC
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Reviewed in June 2020
They no longer tow autos, just heavy equipment...and gear...new number 907-274-3038.
RIGGS TOWING & RECOVERY
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Reviewed in August 2019
Super friendly and easy to work with! I will be using them again in the future.
Bin There Dump That
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Reviewed in July 2019
Larry was so easy to work with, and very knowledgeable, and made the process simple.
Signature Inspection Service, Inc.
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Reviewed in August 2017
Took my car in with several problems and for routine oil change. Raoul diagnosed the problems and got me back on the road for a fair price. The service was great, didn't take long for all that was done, and Raoul checked in with me along the way to let me know what needed to be done, what costs...
Northwest Automotive Inc
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Reviewed in May 2016
My husband and I contracted A+ Contracting & Painting, Inc. in the fall of 2015 to paint the exterior of our 3,200 sq ft home in the spring of 2016. Mr. Yong Kil provided us with a free walk through estimate and guidance with choosing colors. Yong and his crew began the high power pressure wash...
A Plus Contractor
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Reviewed in September 2015
Very professional and courteous, according to our son who managed the move. Belongings were packed with care. Superman went out of their way to retrieve and return key to our storage unit as we were out of Alaska at the time. <br />
Superman Moving and Delivery Service
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Find Insulation pros in Girdwood

PolySeal Insulation LLC

4.9(

)

Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade+2 more

Serving Girdwood, 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."

10 neighbors recently requested a quote

Recommended by100%of homeowners

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Xtreme Alaska Spray Foam, LLC

4.3(

)

Spray Foam Insulation - Install

Serving Girdwood, 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."

Response time1 day

15 neighbors recently requested a quote

Recommended by100%of homeowners

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Polar North Insulation, LLC

4.6(

)

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Girdwood, AK and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"They came in and gave me a quote and went to work i was pleased with all the work that they did. I would recommend them to anyone who needs they're house insulated."

+15

Response time1 day

Recommended by100%of homeowners

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PolySeal Insulation, LLC

4.6(

)

Blown-In Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Girdwood, AK and surrounding areas

In business since 2002

Free estimates

Warranties offered

"They were very quick and efficient. Questions were answered quickly. Very happy with the work performed."

+10

Recommended by100%of homeowners

Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Girdwood, 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."

Response time1 day

Response rate100%

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Girdwood, AK and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"It was excellent. They got in and got the work done. They came at 7 o'clock in the morning and left at 6pm. They were really neat and clean."

+24

Recommended by100%of homeowners

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Girdwood, AK and surrounding areas

In business since 2019

Free estimates

"They were prompt, efficient and neat. Too soon to say how this "new" insulation will help with heating bills this winter. I will let you know!"

Response time2 days

Recommended by100%of homeowners

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Girdwood, AK and surrounding areas

In business since 1962

Free estimates

Emergency services offered

"Upstairs bath water leak with about 400 gallons of water ran into kitchen below. Entire kitchen removed down to studs. They responded within 45 minutes of calling them and had kitchen gutted within 2 hours. Dehumidifiers were placed in all areas affected. Reconstruction went pretty smoothly. We had old Sheetrock with asbestos joint compound that needed removal, hazmat team brought in. New Sheetrock, cabinets, tile and paint. There are always issues with obtaining materials and coordination when you are building. Henry's did a good job of keeping us updated and responding to immediate concerns. Workman were reliable and showed pride in workmanship. We are pleased with the results.
"

Recommended by75%of homeowners

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Homer Foamer LLC

New to Angi

Injection Insulation - InstallSpray Foam Insulation - Install

Serving Girdwood, AK and surrounding areas

In business since 2012

Free estimates

Offers commercial services

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.\n\n

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Avendano Services, LLC

5.0(

)

Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Girdwood, AK and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"It was excellent, he's good. He's pretty clean, reliable, and I have no complaints about him,"

Recommended by100%of homeowners

Request Quote

Showing 1-10 of 12

Insulation questions, answered by experts

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.

In some cases, yes, insulating an unheated garage can lead to mold and mildew. The issue with insulating a garage is that the interior will warm up and cool down more slowly than the exterior air, which can cause condensation inside the space. Where there is moisture, there is likely to be mold and mildew over time. Installing a vapor barrier can help avoid moisture and mildew problems in an insulated garage.

Spray foam insulation can last between 80 and 100 years, depending on the type. Closed-cell spray foam is more durable, while open-cell foam is more susceptible to moisture damage and deterioration. It's important to consult a professional installer to understand which type of foam will be used and its specific longevity. Additionally, be aware that some spray foams can damage plastic piping, so if you have PVC or CPVC pipes, discuss this with your installer.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

The Girdwood, AK homeowners’ guide to insulation services

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

See all articles

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May 30, 2026May 30, 2026
How Much Does Insulation Installation Cost? [2026 Data]
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How Much Does Attic Insulation Cost? [2026 Data]
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
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•
Jul 8, 2026Jul 8, 2026
How Much Does Ceiling Insulation Cost? [2026 Data]
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
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•
Jul 31, 2026Jul 31, 2026
What Is Insulation and Why Do You Need It for Your Home?
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
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Jul 9, 2026Jul 9, 2026
Inspecting and Repairing Your Insulation: Follow This Checklist
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
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•
May 3, 2026May 3, 2026
10 Types of Insulation for Your Home
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.