Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

Should you insulate under a concrete slab?

• <div><p>Insulating under a concrete slab foundation is a great way to improve the energy efficiency of your home, but it isn't necessary for outdoor projects like driveways, patios, sidewalks, and walkways. If you’re pouring in cold weather, insulating under the slab can help prevent heat loss from the concrete, aiding in proper curing. Along with accelerants, this can be a good way to ensure strong concrete despite pouring in the cold. </p></div>

Do insulation companies need to be licensed?

• <div><p>In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s <a href="https://www.angi.com/angi-license-check.htm">license lookup tool</a> to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.</p></div>

Get matched with top insulation pros in Genesee, ID

Q: What is the lifespan of crawl space insulation?

• <div><p>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. </p></div>

Q: Will wrapping a towel around an outdoor faucet keep it from freezing?

• <div><p>No, you shouldn&rsquo;t wrap a towel, old T-shirt, or other porous fabric around your faucets. These materials absorb water, which can make your faucet more likely to freeze. Instead, you want to use waterproof, insulative covers that can seal tightly around the spigots for the best protection against frozen outdoor faucets and pipes.</p></div>

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Verified Reviews for Insulation Service pros in Genesee, ID

*The Angi rating for Insulation Service companies in Genesee, ID 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 Genesee, ID 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 May 06, 2026

Reviewed in May 2026
I needed a roof vent replaced. Lance did an amazing job! His communication with me was excellent and prompt! His price for my job was very reasonable. He was very respectful when entering my house. and around my property. Would highly recommend him!
Handy Fix And Finish
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Reviewed in April 2024
I was extremely pleased with how timely, responsive, and professional they were completely a roof inspection and replacement estimate. They were completely honest and upfront about everything. I was very happy with how they put my best interest ahead of their own. I would highly recommend.
Osprey Exteriors
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Reviewed in April 2023
We have learned that there is still a company that is proud of the quality of their workmanship and professionalism. Apex Roofing, LLC was on time, very dedicated to the details, clean and provided a high quality product. Our job was not easy as the house is 3 story and very steep with two...
Orca Roofing and Exteriors
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Reviewed in April 2023
The installers Anthony White and Sheldon Teasley did a 10 out of 10 job. They were friendly professionals that were detailed and careful to keep our house clean. I give them extra kudos for finishing the last exterior trim in a North Idaho springtime blizzard. Well done.
Renewal by Andersen of Washington
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Reviewed in September 2022
Absolutely beautiful upgrade for our home. Quality workmanship throughout!
Classic Wood Floors & Carpentry, LLC
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Reviewed in August 2022
Everything about this project was seamless. The estimator visited my home within 24 hours of initial contact and made a thorough inspection of the roof and the attic space. He promptly offered a bid, and the work was completed within 3 weeks, as promised. The estimator was my primary contact...
Apex Roofing, LLC
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Reviewed in March 2013
We bought a fixer-upper home with no garage and after receiving several estimates on having a garage installed, we settled on Mangum's Concrete. Lou showed up for the estimate with dirt on his boots which to me was a good sign because I knew his estimate and advice were first-hand. He struck...
MANGUM'S CONCRETE FORMING
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Reviewed in March 2012
The service guy was just fantastic. He was a combat veteran from Iraq. He got the insulation all the way to the edge, which is what I wanted. I am proud of them for hiring veterans, as well. They were right on time.
Moscow Building Supply Inc - Moscow
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Reviewed in July 2011
In fact when I first researched them I hadn't had any work done but I have since called them out for an estimate. I was extremely happy with them. With the heat wave I just thought I'd have somebody take a look at the insulation in my house and see if that was what it needed to be. I had...
MOMPER INSULATION
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Find Insulation pros in Genesee

American Home Shield – Home Warranty

3.5(

5,688

)

Serving Genesee, ID and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."

Recommended by65%of homeowners

Serving Genesee, ID and surrounding areas

In business since 1997

Credit card accepted

Lifespan Systems, inc is a full service mold remediation company. We are qualified to work in commercial and residential buildings, watercraft, recreational vehicles, autos, wineries, basically any location mold needs to be removed. We use electronic, computerized test equipment to test for mold. Using electronics can determine the extent and severity of a mold infestation at the time of testing.

Recommended by100%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Genesee, ID and surrounding areas

In business since 1989

Free estimates

Emergency services offered

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today!\n\nWe specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton\n\nAL.Dothan 334-648-3817,\nAL Birmingham 334-648-3817,\nAL Huntsville 334-648-3817,\nAL Mobile 334-648-3817,\nAL Tuscaloosa 334-648-3817,\nAL Montgomery 334-578-4761,\nAR Little Rock 334-648-3817,\nAZ Phoenix 334-648-3817,\nCA LosAngeles/Sacramento 334-648-3817,\nCO Denver/Colorado Springs 334-648-3817,\nCT Hartford 334-648-3817,\nDE Dover 334-648-3817,\nFL Tallahassee 334-648-3817,\nFL Cape Canaveral/ Cocoa 334-648-3817,\nFL. Destin 334-648-3817,\nFL Gainsville 334-648-3817\nFl Jacksonville 334-648-3817,\nFL Orlando 334-648-3817,\nFL Panama City 334-648-3817,\nFL Tampa 334-648-3817,\nFL Miami 334-648-3817,\nGA Atlanta 334-648-3817,\nGA Albany 334-648-3817,\nGA Augusta 334-648-3817,\nGA Columbus 334-648-3817,\nGA Macon 334-648-3817,\nGA Valdosta 334-648-3817,\nIA Des Moines 334-648-3817,\nID Boise 334-648-3817,\nIL Chicago/Springfield 334-648-3817,\nIN Indianapolis 334-648-3817,\nKS Levenworth/Topeka 334-648-3817,\nKY Frankfort 334-648-3817,\nLA New orleans/Baton Rouge 334-648-3817,\nMA Boston 334-648-3817,\nMD Annapolis 334-648-3817,\nME Augusta 334-648-3817,\nMI Detroit/Lansing 334-648-3817,\nMN Saint Paul 334-648-3817,\nMO kansas City/Jefferson City 334-648-3817,\nMS Jackson 334-648-3817,\nMS Biloxi 334-648-3817,\nMS Gulf Port 334-648-3817,\nMT helena 334-648-3817,\nNC Raleigh 334-648-3817,\nND Bismark 334-648-3817,\nNE Lincoln 334-648-3817, \nNJ Trenton 334-648-3817,\nNM Santa Fe 334-648-3817,\nNV Carson City 334-648-3817,\nNV Las Vegas 334-648-3817\nNY Albany 334-648-3817,\nOH Columbus 334-648-3817,\nOK Oklahoma Ciy 334-648-3817,\nOR Salem 334-648-3817,\nPA harrisburg 334-648-3817,\nRI Providence 334-648-3817,\nSC Columbia 334-648-3817,\nSD Pierre 334-648-3817,\nTN nashville 334-648-3817,\nTX Austin 334-648-3817,\nUT Salt Lake City 334-648-3817,\nVA Richmond 334-648-3817,\nVT montpelier 334-648-3817,\nWI Madison 334-648-3817,\nWV Charleston 334-648-3817,\nWY Cheyenne 334-648-3817

Recommended by60%of homeowners

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Insulation questions, answered by experts

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.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Insulating under a concrete slab foundation is a great way to improve the energy efficiency of your home, but it isn't necessary for outdoor projects like driveways, patios, sidewalks, and walkways. If you’re pouring in cold weather, insulating under the slab can help prevent heat loss from the concrete, aiding in proper curing. Along with accelerants, this can be a good way to ensure strong concrete despite pouring in the cold.

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

No, you shouldn’t wrap a towel, old T-shirt, or other porous fabric around your faucets. These materials absorb water, which can make your faucet more likely to freeze. Instead, you want to use waterproof, insulative covers that can seal tightly around the spigots for the best protection against frozen outdoor faucets and pipes.

The Genesee, ID 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

Dan Simms
•
May 30, 2026May 30, 2026
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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•
Apr 16, 2026Apr 16, 2026
How Much Does It Cost to Insulate a Wall? [2026 Data]
How much does it cost to insulate a wall? This guide breaks down the associated costs and variables to consider when setting your project budget.
Rachel Hoffman
•
May 30, 2026May 30, 2026
How Much Does Insulation Installation Cost? [2026 Data]
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
Dan Simms
•
Apr 5, 2026Apr 5, 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.
Audrey Bruno
•
Apr 9, 2026Apr 9, 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.
Jacqueline DeMarco
•
May 2, 2026May 2, 2026
Who Installs Insulation? Call This Pro to Keep Your Home Comfortable
If you need to add insulation to your home, you’re likely wondering, who installs insulation. Learn why it’s best to hire an insulation pro for this project.