Should you remove old insulation before adding new insulation?

• <div><p>You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.</p><p>However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.</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>

Is bubble wrap or dish foam better?

• <div><p>Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase. </p></div>

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Last update on November 09, 2025

Reviewed in November 2025
Richard did a great job installing tile in a bedroom. He was started on time and was finished when he said he would be. Project was perfect and looks great. Would recommend him to everyone.
3rd Gen Flooring and Baths
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Reviewed in August 2025
Once we finally got on the same page about an appointment time Lee was exactly on time and got my dryer working. He is going to pick up a replacement part and install it when he's back in my area.
24/7 AFFORDABLE APPLIANCE REPAIR LLC
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Reviewed in August 2025
This was one of the best experiences I have had with a Company. The installer is also the owner. Mr.Gray is professional, punctual, and a perfectionist. He takes pride in his work. It is not a matter of if I would use his services again but when. He will be my go to for all my flooring needs....
Gray's Flooring Installation & Repair, LLC
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Reviewed in April 2023
Albert shows up when he’s supposed to and does a great job. He has a lot of great ideas on how to fix certain things in the most efficient way possible. He did the following…. Tore out the old vanity, toilet, shower and roughly 400 square feet of carpet. I forgot about the kitchen sink as...
Albert David Devine
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Reviewed in September 2022
The people that came to install were courteous and knowledgeable in what they were doing. The only problem I had was that they were late getting here. We had set a time for them to be here the first day, they were little over 2 hours late. The second day I called, they (installers) had to...
Five Star Flooring USA, Inc.
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Reviewed in April 2022
I hired Britt to help me install minor plumbing in my home, including connecting vanities and setting tubs. His work is precise, accurate, and timely. I will be hiring him for any future projects I have in his skill set.
Honey Do Property Maintenance, LLC
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Reviewed in December 2020
My experience was very good from start to finish! Salesman Mark Ackermann, Roofing Supervisor Tony, Terri Perera Project Manager, Ygrene Financial also Engineer on-site visit. They were all professional, accessible, knowledgeable, courteous and responsive. The Roofing Crew were hard working...
Florida Home360
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Reviewed in June 2020
Redmon Solutions, LLC installed our Spray Foam throughout our New Construction Home. They were VERY professional, courteous, respectful, conscientious, neat & clean, knowledgeable & EXTREMELY hardworking!!! Ours was a pretty big, time-consuming & very tedious job, to say the least......
Redmon Solutions, LLC
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Reviewed in April 2020
Derek and his crew did outstanding work! I had them put in a 14 by 23 driveway, could not be happier with the install! He and his crew for always professional friendly and a pleasure to be around. Would recommend them to anybody. If you want great quality workmanship at a very reasonable price...
Brown Concrete
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Reviewed in January 2020
Had 4 new roofs,2 metal and 2 asphalt installed and 1 metal repair as well. Pleased with everyone. I would hire again.
Donalson Construction Co. - Home Facebook
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Doorbell Installation questions, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

Periodic checks for moisture or pest issues ensure consistent performance.

Insulating windows without plastic is usually the better method. Outside of simply replacing your windows, you could buy cellular shades, which trap air between the window and the home, add a window film that blocks UV rays and traps heat, or cover your windows with a low-emissivity coating called “low-E.”

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.

Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase.

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