Should I remove old attic insulation before adding new?

• <div>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: <ul><li>If the insulation is over 15 years old</li><li>If the insulation is wet or moldy</li><li>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></li><li>If you see signs of pest infestation</li></ul>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</div>

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Verified Reviews for Doorbell Installation pros in Otto, NC

*The Angi rating for Doorbell Installation companies in Otto, NC 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 Otto, NC 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 March 12, 2025

Reviewed in March 2025
Daniel and the Keener Landscaping team did an excellent job installing a welded wire panel and wood fence. Daniel is responsive, a great communicator, reliable and punctual. I couldn’t be happier with the work.
Keener Landscaping
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Reviewed in May 2024
Shamus screened in an existing porch for me, ran electrical and installed a ceiling fan. He did a great job and my wife and I couldn’t be happier with the results! He was easy to work with and very reasonable on the price. Highly recommend his services to anyone in the area.
Shamus
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Reviewed in March 2024
Quickly responded to our need, fair pricing, appt made next day, arrived on-time, prepared with addâ l tools & supplies, exceptionally skilled workmanship, went above and beyond with grout removal/replacement area prep/smooth-like brand new installation and repair, and clean up was done...
Guerrero Paint
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Reviewed in August 2023
Overall good experience, Just pretty late on the day of install. Good electrician, does what he says he will do and was very pleasant.
Principle Electric, LLC
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Reviewed in July 2022
This experience was pleasant, smooth and professional all the way from the salesman, Jimmy, with his kind and efficient approach, follow up calls and installation by Matt, Robert and Joe. Itâ s rare, indeed, these days to find a company so well oiled, pleasant, efficient and installation...
West Coast Awnings of Clearwater
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Reviewed in April 2022
Noel did a great job with our remodeling bathroom project. His rates are very fair and he is prompt. He cleans up his site area very well and will guarantee his work for a period of time. After the installation of toilets and faucets were complete - we had an issue with a shower mixer - without...
ND Plumbing
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Reviewed in October 2021
The electrician was polite, professional, and prompt. He completed the work he was hired to do, which included repairing three outlets that didn’t work. After talking with him, I asked him to do several projects, including replacing four smoke detectors and a ceiling fan and correctly labeling...
Weatherford Electric
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Reviewed in March 2021
If I could give more stars I would! Mark installed a beautiful wood tongue and groove ceiling for us. Performed kitchen tear out and prepared it for new cabinets and appliances, painted cathedral living room and kitchen. and repaired our gutters. We were extremely pleased with his work. ...
Herman Construction
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Reviewed in February 2021
HCK did a great job on my insulation install. They were on time a did exactly what they said they would when quoting. After completion, David followed up on the workmanship and to assure I was satisfied. I would highly recommend them.
Home Comfort Keepers, LLC
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Reviewed in April 2020
Great service from Home Pro. Installed LVT flooring in 2 bathrooms and replaced our toilets.
Pro Flooring USA
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Doorbell Installation questions, answered by experts

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.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

The life span of fiberglass insulation can be as long as 80 to 100 years, but because of changing building codes, it’s best to get your insulation checked every 10 to 15 years. Signs of degrading fiberglass insulation include bits of batts on the floor or batts detached from frames. Having optimal, healthy insulation in your home will improve its energy efficiency, lowering your monthly bills.

When installing board and batten siding, make sure there is wall sheathing and a moisture-resistant barrier installed. Behind that sheathing should be plywood or OSB for you to nail the boards and battens into. If there isn’t plywood or OSB, you can install vertical furring strips at 1½- to 2-foot intervals to nail the boards and battens to.

Insulating your basement walls offers numerous advantages that make the project well worth it. By adding insulation, you can reduce the chances of moisture damage to the house's structure and lower the odds of mold growth. You'll also add comfort to the space by reducing temperature swings and increasing your home's energy efficiency, potentially reducing your energy bills to earn your investment back.

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