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>

Can I install a radiant barrier myself?

• <div><p>It is possible to install a radiant barrier yourself. However, knowing <a href="https://www.angi.com/articles/how-install-radiant-barrier.htm">how to install a radiant barrier</a> and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.</p></div>

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*The Angi rating for Doorbell Installation companies in Wallingford, CT 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 March 27, 2026

Reviewed in March 2026
This was a second time I hired Nu-Face. The windows installation project went seamlessly from the first meeting with very knowledgeable sales person going into every installation process detail to the installation team. Everyone demonstrated throughout high degree of professionalism. All in...
Nu Face of CT, LLC
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Reviewed in August 2024
Wonderful experience from start to finish. Very thorough explanations of products, installation, and warranty. Workers were on time, worked very efficiently, and were respectful. Installation was only one day and there was a quality check afterwards. Also appreciated the use of a phone app to...
Power Home Remodeling
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Reviewed in May 2024
The install was on time and professional.
Power Home Remodeling
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Reviewed in December 2023
A top rate storm door and an excellent installation
Aladdin Aluminum Company
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Reviewed in September 2023
Very good sales pitch and knowledgeable installer
Freedom Fence
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Reviewed in April 2023
Very prompt in receiving a date and time to have work done. Did a great job removing an old chandelier and replacing a new one.. While here was also able to fix my doorbell. Very neat ,and personableâ ¦â ¦.a keeper in my Rolodex.
Viscuso & Son Electric, LLC
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Reviewed in October 2022
The engineer who did the installation was great. He explained everything and was genuine in making my system sound great.
Wa/ve Sound and Security, LLC
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Reviewed in July 2022
The gentleman He assessed the property and bought me exactly the kind of door I asked for it looks beautiful installation was quick quick he did a wonderful job. He also installed a brand new garage door opener for me.
Mascolo Overhead Doors & Maintenance, LLC
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Reviewed in July 2022
Everyone i .spoke and met was very professional. The work was done on time and most importantly the installed door is beautiful! Would recommend 100%.
Country Club Garage Door Services LLC
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Reviewed in July 2022
We previously had a fence installed by another company. This company blew that company away. Five stars. Install sooner than inspected. Much more quality work. I would fully recommend.
Fence Builders USA, 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.

They recommend sustainable materials and water-saving fixtures, tailoring choices to balance sustainability and style.

Fiberglass is the best insulation for HVAC ducting because it's inexpensive, widely available, versatile, and long-lasting. Fiberglass also offers acoustic insulation in addition to thermal insulation, which can contribute to a more peaceful home environment. You can use other materials like mineral wool, but fiberglass is the industry standard.

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.

It is possible to install a radiant barrier yourself. However, knowing how to install a radiant barrier and actually doing it are two totally different things. For example, it’s important that they be installed in a straight line but at an angle that creates a gap between the roof panels and the foil or spray. If this gap is too large or small, it won’t function as it should, and that may be hard to avoid if you’re only a novice. When in doubt, leave this job to a pro.

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