Can I use fiberglass insulation to soundproof a room?

• <div><p>We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. <a href="https://www.angi.com/articles/diy-dangers-fiberglass-insulation-hazards.htm">Fiberglass insulation is dangerous</a>, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.</p></div>

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>

Best doorbell installation pros near Somerville, MA

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Verified Reviews for Doorbell Installation pros in Somerville, MA

*The Angi rating for Doorbell Installation companies in Somerville, MA 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 Somerville, MA 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 November 20, 2025

Reviewed in November 2025
The electrical installation work was fast and the quality was good. Keep up the good work!
AVT Electric, LLC
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Reviewed in September 2025
Alamo Garage Doors installed a new garage door system for our home renovation. From the free estimate to final installation, their team was incredibly professional.
Alamo Garage Doors
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Reviewed in May 2025
Donal installed the DoorBird intercom at my apartment and it?s been working perfectly ever since. He recommended a wifi booster to ensure it operates efficiently.
Mac Electrics, Inc.
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Reviewed in August 2024
Very quick installation of our new attic door.
All in Juan Services LLC.
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Reviewed in April 2024
D & R Electric did an exceptional job. The work was done by Nicholas and Mark, two men who knew what they were doing and did it incredibly well. I can't say enough about their work. We had a mess going because of having used ADT and Vivint for monitored security - which was a disaster. We...
D & R Electric Corp
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Reviewed in April 2024
Doorbell had stopped working. Just Electric came one day after I contacted them. Had to explore quite a bit to figure out that that a previous contractor in a few weeks earlier had nicked a wire, which led the the doorbell not working again. He fixed it the same morning.
Just Eletric
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Reviewed in December 2023
Dwain and Arnold solved several problems to replace a very old, broken doorbell with intercom. They were friendly and professional.
Record Electric Co., Inc.
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Reviewed in December 2023
He did a great job. We had a smart opener with the lifetime springs installed. He was very personable and did quick and amazing work. We can barely hear it opening and closing now.
AG Garage Door Service Inc
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Reviewed in November 2023
Mixup in order, but did a great job on installation.
3 Day Blinds
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Reviewed in August 2023
Went great - he came and set up the new doorbell on the same day, was clear about pricing/etc. No complaints!
Voltsafe Electric
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Top-Rated Doorbell installation pros in Somerville - Updated Nov 2026

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Doorbell Installation FAQs, answered by experts

Three signs that you need crawl space insulation are drafts, high energy bills, and mold. Drafts can start in crawl spaces and cause hot or cold air to spread to the rest of your home through holes in the floors and walls. And even if your entire home is well-insulated, you can still feel an unchecked draft from your crawl space and in your utility bill. Uninsulated crawl spaces can let in air and moisture, and because they’re built directly on the ground and difficult to dry out, they are hotspots for mold and mildew.

We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. Fiberglass insulation is dangerous, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.

Professionals can install a radiant barrier in a day or two, but DIY installation will take several days. The time it takes to install a radiant barrier depends largely on the size of the space and the installation method. Larger homes can take a pro two to three days to finish the job. It’s also quicker to lay foil over existing insulation.

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, professionals install and upgrade insulation for all home or business areas.

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