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>

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Q: What are the disadvantages of wool insulation?

• <div><p>Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved. </p></div>

Q: Are there sustainable insulation options for attics?

• <div><p>Yes, including recycled denim and cellulose from natural fibers.</p></div>

Q: What is the cost of insulation installation and what factors influence it?

• <div><p>The cost to install or upgrade insulation generally ranges from $1.50 to $4.00 per square foot. The final price depends on factors such as the type of insulation chosen, the total area to be covered (home size), and local labor costs.</p></div>

Q: How much does a radiant barrier cost?

• <div><p>The <a href="https://www.angi.com/articles/radiant-barrier-cost.htm">cost to install a radiant barrier</a> ranges from $700 to $2,800, depending on the size of your roof and the type you choose. Most people pay an average of $1,700 to install a radiant barrier. Foil options, both single- and double-sided, cost between $0.10 and $0.90 per square foot, while spray-on options start at $0.60 and go all the way up to $1 per square foot&mdash;which can add up quickly.</p></div>

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Verified Reviews for Doorbell Installation pros in Gilbert, WV

*The Angi rating for Doorbell Installation companies in Gilbert, WV is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

*The HomeAdvisor rating for Doorbell Installation companies in Gilbert, WV is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

Last update on December 01, 2025

Reviewed in December 2025
Incredible experience all around. Very detailed in his work, kept me in the loop, respected me & answered all my questions. This project was porch railing repair & painting.
Hard Hat And A Hammer Renovations LLC
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Reviewed in March 2024
They built a ramp and laid flooring at my home. I was satisfied with his work.
Cappiello Construction
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Reviewed in March 2023
Very Professional, Great work...looks so nice,on my home..Thank you ,Mrs Cortney Rasnick
LeafGuard
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Reviewed in October 2022
Excellent work and fair priced . No complaints what so ever I'd truly recommend J.M.S to. Anyone
J.M.S. Earthwork Solutions
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Reviewed in July 2021
Got the job done quickly! They are very affordable & just went above an beyond what we expected from them.
Promise Land Developments, LLC
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Reviewed in June 2021
They want to please the customer.
BRATS PAVING AND SEALING LLC
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Reviewed in February 2021
Very Friendly Customer Service, the job is completed in a timely manner, and prices are at affordable rates.
C&H LAWN SERVICE,LLC
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Reviewed in March 2020
Craddock Heating and Air installed a new Central AC system in our home. Dennie did an awesome job and we couldn t have selected a better company for the job. The professionalism and quality of service provided by Craddock Heating and Air, is by far the best around. They showed up exactly when...
Craddock Heating and Air
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Reviewed in February 2019
We had the car towed to Walt Eger’s Service Center and explained the problem to Mr. J.D. Gillespie, their service adviser/writer. They were able to diagnose the parasitic drain issue to the right rear door ajar switch, the wires of which were cut in a previous repair attempt. Walt Eger’s was...
Walt Eger's Service Center
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Doorbell Installation questions, answered by experts

Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.

Yes, including recycled denim and cellulose from natural fibers.

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.

The cost to install or upgrade insulation generally ranges from $1.50 to $4.00 per square foot. The final price depends on factors such as the type of insulation chosen, the total area to be covered (home size), and local labor costs.

The cost to install a radiant barrier ranges from $700 to $2,800, depending on the size of your roof and the type you choose. Most people pay an average of $1,700 to install a radiant barrier. Foil options, both single- and double-sided, cost between $0.10 and $0.90 per square foot, while spray-on options start at $0.60 and go all the way up to $1 per square foot—which can add up quickly.

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