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TRUSTED BY KETCHIKAN, AK HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon103
    Verified insulation services reviews

Find Insulation pros in Ketchikan

Avatar for PolySeal Insulation LLC

PolySeal Insulation LLC

5.00(
14
)
Approved Pro

PolySeal Insulation LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 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


Avatar for Spartan Contracting

Spartan Contracting

4.89(
18
)

Spartan Contracting

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


Avatar for Case & Gamble Construction

Case & Gamble Construction

5.00(
6
)

Case & Gamble Construction

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


Avatar for Renovations Unlimited

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


Avatar for Jensen Construction

Jensen Construction

4.95(
162
)

Jensen Construction

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

While freezing pipes are less of a concern in warmer climates, pipe insulation can still be beneficial because it helps prevent condensation on cold water pipes, reducing the risk of moisture-related issues like mold growth. It also helps maintain water temperature, reducing the energy needed to heat and cool the water, which can ultimately lower your utility bills.

Closed-cell foam may come with a higher price tag, but it’s worth the investment because of its strength and durability. This material offers excellent thermal and moisture resistance, contributing to its long life span. Its construction enhances energy efficiency, which can lead to reduced heating and cooling costs over time.

You don’t need to remove old insulation before adding new insulation. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

In most cases, the building code in your location will determine the minimum amount, in R-value, required for your home's walls, attic, and other spaces. For attics, the minimum R-value amounts start at R30 in the south, R38 in mild climate locations, and R49 in northern states and cold western areas.

The Ketchikan, 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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