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>

How do I add insulation to existing walls?

• <div><p>If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install <a href="https://www.angi.com/articles/blown-in-insulation.htm">blown-in insulation</a>. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than <b>$100</b>. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.</p></div>

Should you remove old insulation before adding new insulation?

• <div><p>You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.</p><p>However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.</p></div>

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Verified Reviews for Doorbell Installation pros in Turlock, CA

*The Angi rating for Doorbell Installation companies in Turlock, CA 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 Turlock, CA 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 April 20, 2025

Reviewed in April 2025
Jim did a great job installing my security door. He had to completely rebuild the trim from the shoddy work that was done by the house-flipper I bought the house from. Highly recommend.
Modesto PC
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Reviewed in February 2025
I had a new toilet installed by Steve about a year ago, and I couldn’t be more pleased with the service. Steve was friendly and professional, and very knowledgeable. He took the time to explain the process and answered all my questions. The installation was done quickly and efficiently, with no...
Seales Plumbing and Drywall
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Reviewed in January 2025
Carlos is such a polite and respectful person. He sincerely listened and did exactly what I wanted. His recommendations were also helpful! He installed 3 security cameras and the Ring Doorbell! He is an incredible professional. I will forever recommend him to others and use his services for all...
PEREZ ELECTRICAL SOLUTIONS
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Reviewed in November 2024
Brian did a very good install and completed it in short amount of time. I will recommend his service to anyone.
St. Clair Plumbing
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Reviewed in July 2024
From my initial consultation with Chade to my window install, the process has been very smooth, timely, and efficient. Art and Jose did my install. All my questions were answered during the process. I will definitely bring back this pair in any future projects!
Renewal by Andersen of Central CA
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Reviewed in April 2023
Happy with installation and service
Living Water Company
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Reviewed in February 2023
We hired ricky to install our security cameras and doorbell camera . He was very professional on time and tentative to our needs . He set up the cameras exactly where we wanted them. even places we were told couldnâ t be done bye previous inquiries. Very happy with the work it was definitely...
Smoov Energy & Electric, Inc.
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Reviewed in January 2023
I had garage door guy install door opener also replaced springs. He is responsible price and he responded quickly.
Garage Guy Door Repair & Maintenance
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Reviewed in December 2022
This was a complicated installation, yet Nick handled each extra difficulty quickly and professionally--two toilets and out the door in 2.5 hours. Nick is also a master of cleanup, too.
Tier 1 Plumbing - Unlicensed Contractor
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Reviewed in February 2022
Hired Mike at Evans construction to install a new exterior door with framing and custom storm door installation. Mike did an outstanding job replacing everything IÃ¢Â Â ve never had my door open and lock this easy before. Great customer service and price for the scope of work. Even cleaned up...
Evans Construction
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Doorbell Installation questions, answered by experts

If you plan on heating your garage, you must install a vapor barrier when drywalling the garage. A vapor barrier protects your garage from frost and mold that can occur through condensation. If your garage is unheated, you don't need to install a vapor barrier. The only exception is if you regularly crank the heat in your car before getting in it. In this case, you may still want to install a vapor barrier, as your car can heat your garage.

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

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.

If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install blown-in insulation. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than $100. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

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