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>

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Verified Reviews for Doorbell Installation pros in Thaxton, MS

*The Angi rating for Doorbell Installation companies in Thaxton, MS 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 Thaxton, MS 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 June 04, 2026

Reviewed in June 2026
We are very pleased with the attention to detail and the quality of work. The installer did exactly what he had promised at a fair price.
Superior Gutter LLC
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Reviewed in May 2026
Fox Remodeling did an excellent job installing the vinyl flooring. We are very well pleased and would highly recommend him for such work.
Fox Remodeling
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Reviewed in May 2026
They were polite. They called kept me informed. Arrived promptly. Did a great job.
Porter Septic Services LLC
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Reviewed in April 2026
Installed a mini split in my bonus room, which was 25 feet off the ground from the outside unit and not simple for wiring and copper. Had no issues and made everything look neat. Got the unit installed quickly and saved me money on some helpful suggestions.
Lynn Inman Cooling & Heating
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Reviewed in January 2026
Great customer service , quick and easy he knows what to do !!
MTL Management LLC
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Reviewed in July 2024
I recently hired AFX and couldn't be more impressed with their service. From the initial inspection by the friendly and professional design expert who came to my house, to the meticulous installation by the production team, they kept me informed every step of the way. They patiently answered all...
Apex Foundation Experts
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Reviewed in December 2023
They were very respectful. I hired them for leveling my front porch and they did it well. But I had a few more small jobs I needed done. They was very accommodating to hanging a light fixture, and installing my microwave vent hood. They are coming back to install new doors. I'm very satisfied
Joseph Crum
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Reviewed in December 2023
Had them come out and do some work around my home and I couldn't have been happier with how it went. They are great and very trustworthy. Highly recommend!
BK's Handyman Services LLC
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Reviewed in July 2023
He had to purchase and hang wire shelves in the laundry room and garage. I was not home and he did a great job talking with me on telephone. My housekeeper was there to let him in. Very professional and friendly. Easy to work with. Would definitely call him again
J&L Handyman Services
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Reviewed in May 2023
They done electrical and plumbing for me. They showed up when they said they would be there and didn't waste any time getting what we needed done. I highly recommend these guys to anyone.
Belk Plumbing & Electric, LLC
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Doorbell Installation questions, answered by experts

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

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.

The time required for insulation installation can range from a few hours to a few days, with most projects taking 1-3 days to complete. The final duration depends on the project's size and complexity, the area size, and the type of insulation being installed.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

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