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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon102
    Verified insulation services reviews

Find Insulation pros in Craig

Avatar for PolySeal Insulation LLC

PolySeal Insulation LLC

2360 S Old Glenn Hwy
4.94(
17
)
Approved Pro

PolySeal Insulation LLC

2360 S Old Glenn Hwy
4.94(
17
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

We're a family-owned, residential construction contractor based in Alaska and have been in business for over 20 years. Our niche is specialty construction solutions. We thrive on trouble-shooting and solving construction problems unique to Alaska - this ranges from insulation methods to combat extremely cold weather, Geo-foam applications to stabilize settling ground, lifting settled houses, creating curtain walls for water abatement, sea wall stabilization, grout injection, helical piers, and the like. We have multiple teams of highly qualified and certified technicians with years of experience. We take pride in providing high-quality products and services to our customers, and our reviews reflect the hard work we have put in.

"Excellent, perfectly done. Would recommend to everyone"

Andy H on March 2024

We're a family-owned, residential construction contractor based in Alaska and have been in business for over 20 years. Our niche is specialty construction solutions. We thrive on trouble-shooting and solving construction problems unique to Alaska - this ranges from insulation methods to combat extremely cold weather, Geo-foam applications to stabilize settling ground, lifting settled houses, creating curtain walls for water abatement, sea wall stabilization, grout injection, helical piers, and the like. We have multiple teams of highly qualified and certified technicians with years of experience. We take pride in providing high-quality products and services to our customers, and our reviews reflect the hard work we have put in.

"Excellent, perfectly done. Would recommend to everyone"

Andy H on March 2024


Spartan Contracting

205 E Dimond Blvd
4.89(
18
)

Spartan Contracting

205 E Dimond Blvd
4.89(
18
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Spartan Contracting is an Alaskan owned firm with over 100 years of combined experience in residential and commercial construction. We are a fully licensed, bonded, insured and residentially endorsed general contractor able to meet all your remodeling and new construction needs. We are also Municipality of Anchorage certified excavators and septic installers, providing exceptional value to our clients. From small remodels to full ground up construction, we have the experience and expertise to make your dreams a reality!

"Levi and his crew did an outstanding job refinishing our decks. Levi has excellent and prompt communication. Pricing was honest and straightforward. Would highly recommend Levi and I would hire again."

Ian G on September 2025

Spartan Contracting is an Alaskan owned firm with over 100 years of combined experience in residential and commercial construction. We are a fully licensed, bonded, insured and residentially endorsed general contractor able to meet all your remodeling and new construction needs. We are also Municipality of Anchorage certified excavators and septic installers, providing exceptional value to our clients. From small remodels to full ground up construction, we have the experience and expertise to make your dreams a reality!

"Levi and his crew did an outstanding job refinishing our decks. Levi has excellent and prompt communication. Pricing was honest and straightforward. Would highly recommend Levi and I would hire again."

Ian G on September 2025


Case & Gamble Construction

8112 E 2nd Ave
5.00(
6
)

Case & Gamble Construction

8112 E 2nd Ave
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are general contractors licensed, bonded, and insured with a residential endorsement (#117477) meaning that we can provide new construction, additions, remodels, and renovations. We provide all services related to the above from the ground up. We strive to provide a custom experience for each homeowner. We are a partnership business with a combined 25+ years of experience. Please call or email to set up a free estimate.

"Great! Case & Gamble were very professional and communicated well throughout the process. Would absolutely hire again."

Daniel J on May 2019

We are general contractors licensed, bonded, and insured with a residential endorsement (#117477) meaning that we can provide new construction, additions, remodels, and renovations. We provide all services related to the above from the ground up. We strive to provide a custom experience for each homeowner. We are a partnership business with a combined 25+ years of experience. Please call or email to set up a free estimate.

"Great! Case & Gamble were very professional and communicated well throughout the process. Would absolutely hire again."

Daniel J on May 2019


Renovations Unlimited

-
5.00(
27
)

Renovations Unlimited

-
5.00(
27
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Renovations Unlimited- business owner and registered journeyman carpenter, Josh Heath, is there everyday ensuring the highest level of quality and care for your home. Our services range greatly and include, window and door replacements, full kitchen and bath remodels, custom decks, "honey do" lists, and much more - just ask! You can't beat the quality of work being performed by a business owner, no one could care more about what they produce! All work performed by the business owner! Check out my website for a portfolio of some of my projects! buildingak.weebly.com

"Went excellent!"

Erin B on May 2018

Renovations Unlimited- business owner and registered journeyman carpenter, Josh Heath, is there everyday ensuring the highest level of quality and care for your home. Our services range greatly and include, window and door replacements, full kitchen and bath remodels, custom decks, "honey do" lists, and much more - just ask! You can't beat the quality of work being performed by a business owner, no one could care more about what they produce! All work performed by the business owner! Check out my website for a portfolio of some of my projects! buildingak.weebly.com

"Went excellent!"

Erin B on May 2018


Jensen Construction

3307 Boniface Pkwy
4.95(
162
)

Jensen Construction

3307 Boniface Pkwy
4.95(
162
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Jensen Construction is a small family owned company, in business in Anchorage since 1984. My business is under many categories on Angie's list. Almost all phases of construction. We take pride in the quality of work we provide and I, Dave Jensen take a hands on approach to ensure satisfaction. business lic #50121 specialty contractor lic# 15739

"Dave went above and beyond on our door installation, even coming up with some creative fixes for alignment problems that the door supplier created (SBS). He's very detail oriented, knowledgeable, and really wants you to be happy with his work. We plan to work with him again for other home projects!"

SARAH M on August 2022

Jensen Construction is a small family owned company, in business in Anchorage since 1984. My business is under many categories on Angie's list. Almost all phases of construction. We take pride in the quality of work we provide and I, Dave Jensen take a hands on approach to ensure satisfaction. business lic #50121 specialty contractor lic# 15739

"Dave went above and beyond on our door installation, even coming up with some creative fixes for alignment problems that the door supplier created (SBS). He's very detail oriented, knowledgeable, and really wants you to be happy with his work. We plan to work with him again for other home projects!"

SARAH M on August 2022

Insulation questions, answered by experts

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

Insulation can be easy to install, depending on the condition of your walls, but there are many safety considerations and potential challenges involved. For example, most types of insulation are made from materials that can cause irritation if inhaled or if they come into contact with your skin. Additionally, installing insulation incorrectly can actually make moisture issues in your home worse.

The lifespan of crawl space insulation depends on how well you maintain your insulation and the type of insulation. Fiberglass will need replacing every 15 to 20 years on average if you don't have a vapor barrier in place. If you do have vapor barriers in place, then your insulation could last much longer. Spray foam insulation can last anywhere from 80 to 100 years. 

Chimney liners often benefit from insulation, though it is not always required. Insulation helps improve the liner's efficiency by keeping flue gasses hotter, which enhances draft and reduces creosote buildup. It also prevents condensation, which can lead to corrosion. Insulation is important for chimneys on exterior walls or in colder climates. Some building codes may require insulation, so checking local regulations is essential.

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together. 

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

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The Craig, AK homeowners’ guide to insulation services

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