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>

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>

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Verified Reviews for Doorbell Installation pros in Elgin, IL

*The Angi rating for Doorbell Installation companies in Elgin, IL 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 Elgin, IL 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 June 13, 2025

Reviewed in June 2025
Installed new shower doors and did a great job!! I would recommend Alex the installer to anyone He was very knowledgeable and respectful.
Reflective Edge LLC
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Reviewed in April 2025
Great company & customer service! The system was installed quickly and the installer was very professional.
Springsoft International, Inc.
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Reviewed in September 2024
Very professional installation. I would recommend to anyone.
Solis Pool & Spa
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Reviewed in December 2023
I had a new door installed. Austin did a good job putting it in.
JL Masonry
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Reviewed in September 2023
The installers showed up within 30 minutes of estimated time. Worked quietly and efficiently to install the patio door. They also took time to show me how it all operates. The door is beautiful and works wonderfully.
Illinois Energy Windows & Siding, Inc.
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Reviewed in December 2022
Done promptly and professionally and the installer was very friendly
Bath Planet of Chicago
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Reviewed in June 2022
U.S. Window and Door was easy to work with. They have quality windows and awesome installers. They were the best priced company.
U.S. Window and Door
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Reviewed in January 2022
They were professional and installed my Ring doorbell at a great price.
IVolt, LLC
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Reviewed in October 2021
Very nice, was on time. Work was done well. Two exhaust fan replacements hook up new doorbell & one light in utility room took the most time. Replacement of one socket & one two way switch & two replacement lights in garage. We thought for the work done price was a little excessive.
Duffy Electrical
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Reviewed in July 2021
Excellent experience with CTEC. They were prompt, considerate of us and our home, and very efficient. We were informed of progress throughout the installation with additional explanations of what was installed and what we should expect. At the end of the installment time was taken to check...
CTEC Data Solutions, LLC
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Doorbell Installation questions, answered by experts

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

DIY insulation installation is feasible, particularly for basic rolls or batts, if you have the right protective gear and knowledge. However, hiring a professional ensures even, full coverage for maximum efficiency.

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.

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.

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