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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*The Angi rating for Doorbell Installation companies in Galt, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

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Last update on April 17, 2024

Reviewed in April 2024
If you have an electrical need, you need to hire Light Way Electric, Fabian. He knows his electrical AND heâ s really nice! He helped us with adding two circuits to our main panel for a shed to office conversion and installed all of the outlets, switches and lighta for the project. He ran...
Light Way Electric
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Reviewed in February 2024
Julian the electrician for Hunts Electrical was so nice and accommodating when he replaced my doorbell and living room light fan & switch. I originally thought I had to remove my old doorbell because it had not worked for months but Julian figured out the problem within minutes! Thanks again!
Hunts Electrical Services
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Reviewed in December 2023
Iâ ve hired Ronil for several electrical projects in my home and was extremely happy with his work! He installed two light fixtures in my bathroom where there was previously only one, upgraded another light fixture, removed a satellite dish & associated wiring, replaced an outdoor...
Ronil Electrical-Unlicensed Contractor
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Reviewed in November 2023
Great to work with. Professional quoting process, professional install. I couldnt be happier with the results. I will be using Mike again! Highly recommend!
Michael Jones and Son, Inc.
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Reviewed in June 2023
Highly recommend, never felt pressured to buy. Install very nice. Works great
AAA Water Systems, Inc.
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Reviewed in April 2023
Answered all my questions over the phone before the install, arrived on time and completed the job within the time agreed upon.
Thomas Allen Pro AV Networking
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Reviewed in October 2022
Perfect. Have hired these guys before. They are on time and do really excellent work. Moises and Eloy (the installers this time), installed a new fence and a beautiful double gate. They are ver professional and do excellent work. Would absolutely hire again!
Fantastic Fence
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Reviewed in September 2022
I thought the price was high to install a microwave $300 but it took some work to get it installed. They accomplished the task, and it looks professional.
Appliance Experts, LLC
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Reviewed in January 2022
They did a great job removing the old garage door and installing the new one. Cleaned up after themselves. Showed me how to program it.
Haney Door Service, Inc.
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Reviewed in August 2021
Installed an exterior outlet. Quick work. Great quality.
City Wide Electric
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Doorbell Installation questions, answered by experts

It is generally completed in a day, depending on the attic size and access difficulty.

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.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation.

For your safety, you should always wear a mask when cutting batts of fiberglass insulation. We also recommend wearing eye protection, safety gloves, and long sleeves to protect your skin. Properly suiting up helps you avoid several fiberglass issues, such as cuts from the tiny shards of glass and inhaling small bits of fiberglass.

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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