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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Verified Reviews for Doorbell Installation pros in Springhill, LA

*The Angi rating for Doorbell Installation companies in Springhill, LA 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 Springhill, LA 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 March 26, 2025

Reviewed in March 2025
I recently had a shed assembled by Gleason Construction, and I couldn't be more pleased with the experience. Everything was handled professionally and efficiently. Chris worked diligently, and made sure the shed was set up perfectly. The quality of the shed and the precision of the assembly...
Gleason Construction
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Reviewed in July 2024
He was dependable and did what he said. He kept his word. I was really pleased. I have referred him to others.
Gortney Handyman Service, LLC
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Reviewed in August 2023
Up and Running came out to look at the needed repair immediately. She determined that a replacement part would need to be located. The price of the part was discussed with us. So, no surprises. We understood the timeline, and everything was clear up front. We also have a 30-day warranty in case...
Up N Running Appliances LLC
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Reviewed in October 2022
They are very easy to work with, anything you need they are there to help/.
JRG Builders LLC
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Reviewed in June 2022
Not one job we paid the agreed upon price for was successfully completed. We currently have limited income as I only get just under $1000 a month to support 3 people and 25 animals so they quoted us a price of $500 for installation as long as we purchased the supplies ourselves which we agreed...
Autumns Plumbing Repair LLC
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Reviewed in May 2022
Great work by a dependable contractor.
Springbank Seamless Gutter
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Reviewed in April 2022
This company was wonderful to do business with. The crew did a great job and management stayed in constant communication. Would highly recommend them!
Encore Painting, Inc.
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Reviewed in September 2021
Thomas was courteous, friendly, knowledgeable and informative. He provided excellent professional service at a reasonable price rate. The Air Conditioning system is working well and cooling properly now. I will definitely recommend Thomas. Thank you.
All Around Service Company
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Reviewed in April 2021
On-time and professional! Cleaned and serviced our office unit. Explained his findings and recommendations in a manner that was easy to understand. Charged a fair price for services. We will be using again!
Bonnette Services, LLC
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Doorbell Installation questions, answered by experts

Acoustic foam, fiberglass insulation, soundproof curtains, and specialized drywall are effective in reducing noise transmission.

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.

When it comes to fiberglass insulation versus foam board, there are a few notable differences, both aesthetically and functionally. Fiberglass insulation is soft and flexible, meaning it can be squeezed into tight spaces more easily than foam board. Fiberglass insulation also has a higher R-value, making it a better pick for colder climates. However, foam board insulation can resist moisture and pest damage much better than fiberglass.

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.

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.

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