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: Should you put plastic over insulation in basement walls?

• <div><p>A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.</p></div>

Q: Should you insulate your entire attic?

• <div><p>Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you&rsquo;ll need to do down the line. </p></div>

Q: How do area size, material thickness, and preparation requirements impact installation expenses?

• <div><p>Costs depend on area size, material thickness, and site preparation needs.</p></div>

Q: How long does duct insulation last and when should it be replaced?

• <div><p>Air duct insulation typically lasts for 10 to 15 years or even longer, depending on the material and maintenance. It's important to conduct periodic inspections to check for signs of deterioration, such as water damage, tears, or general wear. If you find any of these issues, it may be time for repairs or a full replacement. You might also consider upgrading your insulation even if it's in good shape to improve your home's energy efficiency and enhance your HVAC system's performance with newer, more effective materials.</p></div>

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Verified Reviews for Doorbell Installation pros in Patten, ME

*The Angi rating for Doorbell Installation companies in Patten, ME 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 Patten, ME 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 February 07, 2025

Reviewed in February 2025
I hired atlas earthworks to put a driveway and parking lot in on a remote piece of land I purchased. He was easy to commute with and did a great job. I even added some work to the job and he finished ahead of schedule. He has nice equipment and an extremely positive attitude. It was a breath of...
Atlas Earthworks LLC
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Reviewed in May 2022
We are glad we found Ruth. She is clear and timely communicator who is good at what she does. I highly recommend.
Ruthi's Cleaning Services
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Reviewed in September 2021
I hired a different business outside of HomeAdvisor
High-Power Lawn Care
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Reviewed in April 2021
An excellent honest hardworking contractor.
T-Libb Construction & Design Service
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Reviewed in February 2018
Excellent. They did a great job and installed it very timely manner.
Mainely Water
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Reviewed in May 2017
Our daughter had Tom, the owner, to do some work for her and she suggested them to us as they did such a good job for her. They sent Nick and a helper. I would guess that it would take around 4 hours to do everything. 7 and half hours later, they finished and handed me a bill for over $1100....
Pope Electric Inc
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Reviewed in September 2016
This is the 2nd time I have used Ed for a computer repair. My computer was infected with something Ed called "sweet packs" and a "re directer?" I'm not sure if I am describing that last one properly, but Ed cleared them both with reasonable rates. I will have him go over my computer every 6...
ProActive Computer Services
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Reviewed in April 2014
The only thing I am giving one star for is that the company showed up quickly after the fire. As for the job that was done (I can't call it job completed) they were horrible. After the first day my wife and I spent going around the bedrooms after their crew to clean behind dressers, desks and...
PENOBSCOT CLEANING SVC
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Reviewed in September 2011
It was a great job done exactly as promised
The Chimney Man
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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.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you’ll need to do down the line.

Costs depend on area size, material thickness, and site preparation needs.

Air duct insulation typically lasts for 10 to 15 years or even longer, depending on the material and maintenance. It's important to conduct periodic inspections to check for signs of deterioration, such as water damage, tears, or general wear. If you find any of these issues, it may be time for repairs or a full replacement. You might also consider upgrading your insulation even if it's in good shape to improve your home's energy efficiency and enhance your HVAC system's performance with newer, more effective materials.

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