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>

What is the downside of radiant barriers?

• <div><p>The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important. </p><p>Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency. </p></div>

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Verified Reviews for Doorbell Installation pros in Brookline, VT

*The Angi rating for Doorbell Installation companies in Brookline, VT 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 July 27, 2026

Reviewed in July 2026
Tomas and New World Overhead Door quoted, had doors in stock, and installed before other vendors had written back with quotes. Tomas installed and delivered on time. All work was performed promptly and communicated clearly. I paid 1/2 upfront and preferred method was Zelle. Highly...
New World Overhead Door
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Reviewed in April 2025
Tanner Bell was professional from start to finish. He came and inspected out the job, ordered the parts, installed and delivered on time. Have had no problems and been pleased with the results.
TAB BUILDERS LLC
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Reviewed in April 2025
Installed an exterior generator hookup with auxiliary breaker box. John was excellent and the install looks and works great. He stayed late to troubleshoot an issue and was very gracious with his time. I would definitely hire him again!
Noyes Electric
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Reviewed in August 2023
We are very pleased with the installation and would definitely recommend Clear Choice.
Clear Choice Home Improvements
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Reviewed in July 2023
The whole process was timely and the customer service was great. From assessment to quote to install I received friendly and timely communication and my new roof looks great. I felt like they took the time to really walk through their process and reasoning for their recommendations and I felt...
Monarch Roofing & General Contractors
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Reviewed in May 2023
Norman's not just a skilled professional - he's an actual craftsman! Replaced the knob and deadbolt on my front door, which was a tricky job, as the door was very old and actually starting to disintegrate. Previous guy I had in refused to touch it, and told me to buy a new door, but Norman...
Norman Calkins
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Reviewed in October 2022
We hired Curtis Berard to install a new electrical panel, run electricity for a portable generator and wire our new kitchen. He was on time and charged a reasonable fee. We will definitely hire him again in the future. He was knowledgeable, honest and personable. I was so glad that we found...
Berard Electric
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Reviewed in September 2021
I have had a freedom fence in my yard for over 15 years installed by Hal Kessler. It is by far the most durable product I have ever installed. It has been through 2 large doge and has always worked beautifully.. Hal has been there with me throughout and has been very responsive to everything...
Freedom Fence
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Reviewed in August 2021
The crew did a great job installing the replacement windows. They were very professional and extremely hard working. The windows are beautiful.
Clear Choice Home Improvements, LLC
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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.

Insulating a detached garage won't reduce your home's heating or cooling bills—and insulating an attached garage will only have a small effect on your home's energy efficiency. However, insulating an attached garage can reduce the transfer of heating and cooling to and from the outdoors, which can reduce the amount of energy your home needs to stay comfortable. Also, having an insulated garage is just more pleasant. Balance the cost of insulating your garage with how you'll use the space to determine if the project is worth it.

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important.

Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency.

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.

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