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>

Does the paper on insulation go in or out?

• <div><p>If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. </p><p>A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.</p></div>

Does insulating windows with plastic work?

• <div><p>Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and <a href="https://www.angi.com/articles/how-to-caulk-windows.htm">caulking your windows</a> to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.</p></div>

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*The Angi rating for Doorbell Installation companies in Barnstable, MA 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 July 03, 2026

Reviewed in July 2026
Prompt service, very knowledgeable & quality installation
John H Canto Asphalt Paving
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Reviewed in March 2026
1. Immediately call back 2. Understood assignment 3. Reasonable quote 4. Quick appointment for install
Darnell Cauley Electrician
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Reviewed in June 2025
Absolutely fantastic installation of two new garage doors with connection to existing openers. I could not have been happier with the quality of the installation and professionalism shown by Dan (installation) and Kevin (sales). Thank you both!!
Caspersen Garage Doors
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Reviewed in May 2025
Got the job done right and efficiently. Was prompt , courteous and friendly . Maintained contact prior to installation.
Sofkin Landscaping & Irrigation
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Reviewed in June 2024
It was very easy to order and was installed within weeks. The installation crew was fantastic - very organized and efficient.
Marygrove Awning Co.
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Reviewed in May 2023
Fast reliable installation. Friendly professional service at a reasonable price. Highly recommended.
Whitecap plumbing & HVAC
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Reviewed in March 2022
The price was half of the other two quotes and installation was fantastic. They installed when they said they would but weather was a problem. Just ask them to communicate with their plans of there is a delay. Great owner!
Liberty Fence and Construction
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Reviewed in January 2022
Steve installed ceiling fans (living room and bedroom) and light fixtures (dining room chandelier, master bedroom sconces, closet light), and he repaired the existing doorbell system for the front and back doors. Most of the work required new wiring to be fished through walls and ceilings to...
Steven Tullock Electrical Contractor
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Reviewed in October 2021
The fence installation was even better than expected. Excellent job!
FHT Home Services
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Reviewed in October 2021
Came at a days noticed installed 2 storm doors highly recommended
Arawak Painting and Handyman Services
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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.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

Costs depend on area size, material thickness, and site preparation needs.

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process.

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and caulking your windows to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.

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