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>

Is bubble wrap or dish foam better?

• <div><p>Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase. </p></div>

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Verified Reviews for Doorbell Installation pros in Jamestown, CA

*The Angi rating for Doorbell Installation companies in Jamestown, 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 Jamestown, 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 March 07, 2025

Reviewed in March 2025
This company has been the best landscaping company to work with in my area. They came in to install plants, lawn, slate paths, drainage, and did a total overhaul of my old broken-down irrigation system. Steve?s expertise and craftsmanship has made our outdoor space come alive again. The only...
Mountain Side Landscaping
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Reviewed in June 2024
He was flexible with scheduling and listened to all of my goals and details of wanting the dog door installed and step built outside the door. .
Against The Grain Handyman - Unlicensed Contractor
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Reviewed in February 2024
Buckley flooring did an excellent job installing our engineered wood floors. The demo and installation including baseboards took 4 days and we are elated with the results. 10 stars
Buckleys Flooring
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Reviewed in July 2023
Provided bid, was able to locate our garage door and installed without delays, This was an all around great experience and we will recommend Eric to our neighbors.
Door Nation Garage Doors and Gates LLC
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Reviewed in July 2023
Anthony is excellent! He's professional, knowledgeable, and also very nice. He installed a light/fan that was complicated and, somehow, figured it all out and made it beautiful. I asked him to come back and do additional work to make my outlets safer, and install a few other...
AC Electrical, LLC
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Reviewed in May 2023
I ordered a custom oak butcher block counter and extension piece for the kitchen in our 5th wheel. It is a beautiful piece. We are very happy with it ! Dustin was able to closely match the finish of the countertop with the flooring we installed and it looks great! He was wonderful to work with.
Diamond K Woodworks LLC-Unlicensed Contractor
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Reviewed in March 2023
Poor communication between project manager and installers
Arizona Turf Professionals, LLC
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Reviewed in February 2023
Edison with AAA was very respectful, nice, patient and courteous. He went above and beyond installing this security gate. Iâ m very happy with his work ethic and ability to get the job done thoroughly.
AAA Handyman Service
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Reviewed in January 2022
Project installed TV rack and TV, electrical outlets and moved cable. Very good work.
Warner Electric, Inc.
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Reviewed in November 2020
Transfer switch for generator installed
GenJazz Building & Electrical Solutions
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Doorbell Installation questions, answered by experts

The lifespan of crawl space insulation depends on how well you maintain your insulation and the type of insulation. Fiberglass will need replacing every 15 to 20 years on average if you don't have a vapor barrier in place. If you do have vapor barriers in place, then your insulation could last much longer. Spray foam insulation can last anywhere from 80 to 100 years.

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.

Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

Three signs that you need crawl space insulation are drafts, high energy bills, and mold. Drafts can start in crawl spaces and cause hot or cold air to spread to the rest of your home through holes in the floors and walls. And even if your entire home is well-insulated, you can still feel an unchecked draft from your crawl space and in your utility bill. Uninsulated crawl spaces can let in air and moisture, and because they’re built directly on the ground and difficult to dry out, they are hotspots for mold and mildew.

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