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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Q: What types of insulation offer the best energy efficiency?

• <div><p>Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.</p></div>

Q: Should ductwork be wrapped in insulation?

• <div><p>Ductwork should be wrapped in insulation in certain locations. This includes unconditioned interior parts of the home, such as attics, crawl spaces, basement ceilings, and between floors. Duct joints should also be insulated since they're more likely to leak air than other parts of your system. Building codes in some areas also require ductwork to be insulated. </p></div>

Q: What is the life expectancy of wool insulation?

• <div><p>Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years. </p></div>

Q: What materials are most effective for soundproofing?

• <div><p>Acoustic foam, fiberglass insulation, soundproof curtains, and specialized drywall are effective in reducing noise transmission.</p></div>

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Verified Reviews for Doorbell Installation pros in Ponderosa, NM

*The Angi rating for Doorbell Installation companies in Ponderosa, NM 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 Ponderosa, NM 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 July 20, 2026

Reviewed in July 2026
Did a great job on my floor and my mother's! Thank you!
ARTISTIC CONSTRUCTION LLC
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Reviewed in July 2025
Okay, here's a great review for the flooring installer: "I am absolutely thrilled with the wood floors installed in my house by this installer! From start to finish, the experience was top-notch. The quality of work is outstanding – the floors look beautiful, and you can tell they were...
Imperial Dezign of NM LLC
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Reviewed in February 2024
Very professional and great work. Have used many times for many things! Highly recommend.
Dorsett Home Services
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Reviewed in May 2023
I love that he takes pride in his work and explains what has been done to resolve my house problems. He has high integrity. I trust him to work on my house, even when I am away.
David Reano
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Reviewed in December 2021
The job was done fast and the workers did a great job, I am very satisfied.
SSTTLER
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Reviewed in December 2021
went well with no issues, from Ray the estimator to James and his people. On time and well prepared. would hire them again.
ENCHANTMENT LANDSCAPES INC
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Reviewed in March 2021
Price was reasonable, handled the inevitable issues fine. The paint job on our second bathroom cabinet made it look like new. Workmanship was excellent.
Schueller Homes LLC
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Reviewed in December 2020
The work was very prompt, fast, clean job. went above and beyond. He talked through all the cost of the part and labor.
Water Rite
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Reviewed in January 2016
The mirror fell off the windshield less than 8 months later. Lomas refused to replace this defective or improperly installed windshield. Instead, they lied, saying it was "impossible" that they were at fault and tried to blame the customer, making a number of false allegations and insults. ...
Lomas Glass and Tint
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Reviewed in January 2014
An old non-working, in-wall furnace was removed and a new one installed during a very cold spell. This was for a family whose home burned to the ground and had no heat. MCS gave a wonderful quote, had a top-notch crew there in two days and it was installed and working that day. It was a great...
Mechanical Control Solutions, 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.

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.

Ductwork should be wrapped in insulation in certain locations. This includes unconditioned interior parts of the home, such as attics, crawl spaces, basement ceilings, and between floors. Duct joints should also be insulated since they're more likely to leak air than other parts of your system. Building codes in some areas also require ductwork to be insulated.

Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years.

Acoustic foam, fiberglass insulation, soundproof curtains, and specialized drywall are effective in reducing noise transmission.

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