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>

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Verified Reviews for Doorbell Installation pros in Sparta, MO

*The Angi rating for Doorbell Installation companies in Sparta, MO 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 Sparta, MO 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 July 13, 2026

Reviewed in July 2026
Alex did a fantastic job with a very difficult wall dog door install. He was very diligent in working through the problems that he incurred with the wall. He persevered and figured out the best way to get the job done. He involved me with any decision-making steps of the process to make sure I...
In Wise Hands
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Reviewed in May 2026
I am very happy with the work that was done. I will be using them in the future. the job was done very quickly. the installer was very nice.
McPlumbing LLC - 4 Photos - Plumbing Service - 65622
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Reviewed in April 2026
Very good communication on when installing crew would arrive. Jessee arrived on time as promised, worked all day with 1 small break. Answered all our questions and explained what he was doing . Highly recommend this company. We had a walk in shower installed.
Mad City Windows & Baths
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Reviewed in July 2025
Great service, good price, great system, and great installation experience.
Queen City Heating and Cooling
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Reviewed in June 2025
Everlast did a great job replacing a sliding patio door for me. Install looks great, they sealed the new door in well, and even cleaned up the broken glass from previous door. They charge a fair price for their work and communicate well.
Everlast Installations LLC
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Reviewed in December 2024
Had R&S construction remove and install all new flooring in my house. The job was done very well and very efficiently! Very satisfied!!
R&S CONSTRUCTION - REMODEL LLC
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Reviewed in October 2024
Charles did a fantastic job installing four outdoor light fixtures.
Burks Skilled Trades, LLC
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Reviewed in October 2023
Installed outlets, outdoor lighting, stove hood vent for me. Very prompt, and professional service, will definitely use this service again.
Jonah Rosenbaum
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Reviewed in June 2023
He was quick and timely and was able to complete installation to our satisfaction.
Owens Electrical
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Reviewed in August 2022
A/P installed a mini split in my garage. Delivery and installation was quick and efficient
AP Service, LLC
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Doorbell Installation questions, answered by experts

Yes, insulating ductwork in a crawl space is a worthwhile investment, especially if you live in a colder climate or run your air conditioning for most of the year. Uninsulated ducts can lose up to 30% of their heating and cooling efficiency, which can significantly impact your electricity bill. The project is a relatively small investment and typically only takes a few hours. It's a particularly simple add-on if you are already hiring someone to insulate the entire crawl space. An added benefit is that insulated ducts put off less hot or cold air, making them less attractive to pests.

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

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 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.

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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