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>

Can I install a radiant barrier myself?

• <div><p>It is possible to install a radiant barrier yourself. However, knowing <a href="https://www.angi.com/articles/how-install-radiant-barrier.htm">how to install a radiant barrier</a> and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.</p></div>

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*The Angi rating for Doorbell Installation companies in Riverside, 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 September 25, 2025

Reviewed in September 2025
We had three doors installed by Illinois Energy Windows and Siding. The experience was seamless from start to finish and the installation was professional. I have a new appreciation for the craftsmanship and endurance required to replace doors the right way! Our sales expert (Mike Kuta) was...
Illinois Energy Windows & Siding, Inc.
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Reviewed in October 2023
William arrived on time and worked hard to complete my wired Ring doorbell installation. He was knowledgeable about the installation and was able to put in a new wired doorbell which many other people were unable to do. William was very professional and kind during the time he was in our home...
Cross Country Electric, Inc.
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Reviewed in June 2023
They were able to quote us for a new door and install within 1 week. I highly recommend West Suburban Garage.
606 Garage Doors
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Reviewed in February 2023
Prompt, clean and courteous. Very clear instructions on how to prepare for the installers. Well done.
KAPITAL ELECTRIC COMPANY
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Reviewed in January 2023
Installer was very professional and kept me informed throughout installation
Bath Planet of Chicago
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Reviewed in November 2022
Installing went great. The installer were working hard and got the job done. I would definitely hire this company again.
A&M Fence Corporation
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Reviewed in August 2022
Excellent customer service, install and fantastic product. We love our new door!
Illinois Energy Windows & Siding Inc
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Reviewed in May 2022
The installer was very nice. He did a good job installing the new garage door opened. My only complaint was that I think it was a little too expensive.
AG Smart Garage
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Reviewed in January 2022
It went well! Installation was fast and precise. Will absolutely hire again for future electrical work
Vanecek Electric
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Reviewed in August 2021
Did a great job installing doors. Very professional and efficient. No mess left behind.
Window Works, Inc.
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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.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

Periodic checks for moisture or pest issues ensure consistent performance.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

It is possible to install a radiant barrier yourself. However, knowing how to install a radiant barrier and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.

The Riverside, IL homeowners’ guide to doorbell installation services

From average costs to expert advice, get all the answers you need to get your job done.

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