Should I remove old attic insulation before adding new?

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

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

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Last update on October 14, 2025

Reviewed in October 2025
We had a lot done! First Tony introduced us to Luis. Highly recommend him. He?s an excellent worker,does very professional work. He drywalled our entire bathroom and painted it. Installed a new toilet. Replaced our old surround with beautiful tiles and even put up shelves and bars in the tub for...
Bathtub Refinishing & More, LLC
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Reviewed in April 2024
The installation team went above and beyond standard practices to complete the job I. Spore of obstacles presented. Very impressed with their dedication and work ethic.
TLS Insulation, Division of TLS Energy Savers
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Reviewed in July 2022
The project was top notch. From the salesman to the installers they were professional, Pleasant and extremly helpful. It was done in a timely manner. I am so happy with my new shower. I would highly recommend Bath Planet.
Bath Planet of Chicago
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Reviewed in June 2022
This project was top notch. Showed up on time and finished in a day. Our installer was polite. Professional and did a great job. This was for our 86 Mother and she is so happy with this project. Customer Service was also helpful and walked us through the process in a professional manner.
Bath Planet of Buffalo
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Reviewed in June 2022
Our installer was professional and did a great job.
Bath Planet of Rochester
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Reviewed in February 2020
He did a great job, from the install to mudding to painting, everything turned out great
L&R Maintenance
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Reviewed in February 2019
They arrived when they said they did. They worked efficiently. The installation was done professionally and was neat when it was done.
Stuedemann Radon Resolutions
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Reviewed in October 2018
Did a very good job, and looks great. Installer was good and quick. Thanks
LeafFilter Gutter Protection
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Reviewed in February 2014
The job could not have gone any better. I had used Berg for roofing and siding in the past, when I lived in Westmont. I moved to the far South suburbs over a year ago. It took this cold winter to realize how bad my windows were in this 113 year old home. I was thrilled when I called Berg and...
Berg Roofing and Home Improvements
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Doorbell Installation questions, answered by experts

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.

Yes, they address underlying issues, providing long-term seals and energy savings you might need help to achieve.

Spreading tin foil over your windows works similarly to radiant barrier insulation, but not as well. It will reflect some of the sunlight that would otherwise come through the glass and warm up the inside of your home, so it might help a little to keep your home cool in the summer. However, the appearance isn’t preferable to blinds or drapes that can offer the same benefits. You might also consider tinting your windows instead, which is a more aesthetically pleasing change that can still block a good portion of the solar heat coming through your windows.

When installing board and batten siding, make sure there is wall sheathing and a moisture-resistant barrier installed. Behind that sheathing should be plywood or OSB for you to nail the boards and battens into. If there isn’t plywood or OSB, you can install vertical furring strips at 1½- to 2-foot intervals to nail the boards and battens to.

Ensures uniform application and maximizes insulation effectiveness and energy savings.

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