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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Q: How do pros determine the right type and amount of insulation for my attic?

• <div><p>Through R-value assessments based on climate and existing insulation.</p></div>

Q: What maintenance is needed after installing insulation?

• <div><p>Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.</p></div>

Q: Is installing crawl space insulation worth it?

• <div><p>Yes, <a href="https://www.angi.com/articles/why-should-i-insulate-my-crawl-space.htm">crawl space insulation is worth it</a> if installed correctly. Installing insulation in your crawl space will improve the air quality, help stabilize your home's temperature, lower your energy bills, and prevent pests from entering your home. Though you&rsquo;ll pay more to install insulation initially, the savings you get from installing insulation can help offset those initial costs over time.</p></div>

Q: Should ductwork be wrapped in insulation?

• <div><p>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. </p></div>

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Verified Reviews for Doorbell Installation pros in Drummond, MT

*The Angi rating for Doorbell Installation companies in Drummond, MT 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 Drummond, MT 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 October 15, 2025

Reviewed in October 2025
Signed contract in November for a bath to shower conversion. We were hosting a wedding in August. Work was guaranteed to be done in March. The first two project managers quit. The third, RJ, was disorganized and condescending. The project was not finished by the wedding and still not done. ...
Your Home Improvement Company, LLC
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Reviewed in January 2025
Even though JJ Is my son, he is very professional. There was no different treatment for me than for his other customers. He told me what needed done, what it would take to get it done, how much it would cost & what he does to get the job done. He is very meticulous about his work & does an...
Murray's Mountain Side Painting
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Reviewed in October 2024
Todd and Jesse came out to my home, wanted to know my concerns concerning my heating/ac needs. Both did a thorough evalution of my home underneath crawl space, and one day later gave me a solid bid for the work to be performed with the pricing. One week later, installation started. They are...
American Heating Cooling & Refrigeration, LLC
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Reviewed in April 2024
Skyler and his crew did great work! Would highly recommend!
Havoc Roofing LLC
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Reviewed in March 2024
Clint was so easy to work with, his fee was reasonable, he was flexible in his time available and our garage doors look beautiful!
Coffman Garage Door Services
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Reviewed in April 2023
Nathan got back to me immediately and was doing the job within two days!! They cleaned up all the branches and debris and would definitely recommend them to anyone considering tree removal!
Montana Tree Masters
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Reviewed in October 2022
Westley completed my Bathroom renovation about 4 months ago and did an amazing job. I was very happy he was so detailed oriented and made sure things were done right.
Concrete Coating Systems
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Reviewed in September 2021
They are incredibly helpful and very responsive and I will hire them if they are 2miles away from my location
Eagle Pump Service
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Reviewed in September 2021
Really nice guy to work with, prom0t.for every appointment and.did the work we agreed on in very good time.
Precision Tree Care
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Reviewed in November 2020
Michael is reliable and did a great job cleaning my gutters
Reimer & Sons Painting, LLC
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Doorbell Installation questions, answered by experts

Through R-value assessments based on climate and existing insulation.

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

Yes, crawl space insulation is worth it if installed correctly. Installing insulation in your crawl space will improve the air quality, help stabilize your home's temperature, lower your energy bills, and prevent pests from entering your home. Though you’ll pay more to install insulation initially, the savings you get from installing insulation can help offset those initial costs over time.

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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