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 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 Mohawk, NY

*The Angi rating for Doorbell Installation companies in Mohawk, NY 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 Mohawk, NY 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 06, 2026

Reviewed in July 2026
We had a new sliding glass door installed. We are super impressed with NY Sash and their employees. The sales rep was very personable and informative. We already knew about the quality of what NY Sash does and they totally proved it to us. The installation guys were both incredible. I had...
New York Sash
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Reviewed in June 2026
Needed removal and installation for business warehouse from old 8’ fluorescent bulbs to LED bulbs. These guys did an amazing quick efficient turnaround. They were reasonably priced and we were very happy with their work.
Elite Edge Construction
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Reviewed in June 2025
If you need a fence, call Superior Fence Co. – you won’t regret it! Paul and his team are simply the best. When we purchased our new home, we knew we’d need a fence for our three dogs—and we didn’t hesitate to reach out to the company we trusted. This is actually the third fence Superior Fence...
Superior Fence Company
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Reviewed in August 2024
Outstanding!! Highly, HIGHLY recommend Holleran's Home Improvement! Answered all of our questions before and during the entire process... clear answers, great communication throughout. We had new rooves installed on our 2300 sq. ft. home, and our two-stall detached garage, and a small shed....
Holleran's Home Improvement
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Reviewed in June 2023
One of the best contractors we've ever hired. Dan, Levi and crew were responsive, fair priced and did excellent work re-siding our entire house, building porch overhangs and installing gutters. Can't say enough great things about working with them. Super flexible in accommodating any changes and...
Quality Roofing and Siding
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Reviewed in March 2023
Bryce was very accommodating and concerned about doing the job as I wanted. He was prompt and made sure to call me and let me know when he would be at my house to install the fence.
BD Fence Solutions
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Reviewed in July 2022
Cory did an excellent job with tearing out my old driveway and installing the new. Everything was as promised and Iâ ve had no issues with the driveway since he finished.
Vibbard Enterprise Paving
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Reviewed in June 2022
Every aspect of the customer experience was spot on. Efficient, timely and very knowledgeable. From the first call to the installation of the UV and reverse osmosis system, I am extremely satisfied with the entire process. They answered all our questions, thoroughly explained everything. Each...
Hurricane Home Solutions, Inc.
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Reviewed in February 2022
He had to move a wall run electric to the wall. Put in ceramic tile,install lighting fixtures and an over the range microwave. He removed popcorn ceiling. Put in molding around windows crown molding and basboard molding.He did drywall and painted. My kitchen is gorgeous! His attention to detail...
Elegant Interior Remodeling, LLC
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Reviewed in February 2021
Top notch! Quick response and install on my new dishwasher.
Gulfside Appliance Repair
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Doorbell Installation questions, answered by experts

Yes, you can install insulation over ductwork, and doing so can save you money. Without insulation, the HVAC unit must work harder to force warm or cool air around the home, and once the air reaches the vent, it may not be the correct temperature. Insulating HVAC ducts makes your system work more efficiently, saving you money on heating and cooling bills.

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.

Ductwork should be wrapped in insulation in certain locations. This includes unconditioned interior parts of the home, such as attics, crawl spaces, basement ceilings, and between floors. Duct joints should also be insulated since they're more likely to leak air than other parts of your system. Building codes in some areas also require ductwork to be insulated.

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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