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>

Should I insulate my copper pipes?

• <div><p>Yes, you should insulate your copper pipes to help regulate their temperature. Well-insulated copper pipes will be protected from freezing and can conserve energy by keeping hot water warm for longer. Foam rubber insulation tubes are the <a href="https://www.angi.com/articles/what-materials-are-best-pipe-insulation.htm">best pipe insulation to prevent freezing</a> since they fit tightly around the pipes while still maintaining some flexibility.</p></div>

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Verified Reviews for Doorbell Installation pros in Thermal, CA

*The Angi rating for Doorbell Installation companies in Thermal, CA 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 Thermal, CA 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 December 05, 2025

Reviewed in December 2025
Joe install a new panel at my house , he completed the job as promised and everything went smooth and easy.
Meek Electric LLC
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Reviewed in November 2021
I needed a new water line installed for my irrigation, The gentleman I dealt with was professional and very polite. My experience dealing with this company was fantastic beginning to end I will definitely be referring and using their services again.
FixRite Plumbing
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Reviewed in September 2021
Ezra y and David s installed a BEAUTIFUL shower in my home today! Thankyou dreamstyle, i couldnt be happier!
Dreamstyle Remodeling of New Mexico
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Reviewed in June 2019
I had a new ac Installed in my apartment...they where here on time and everything was professionally done . I am very happy with everything
Mango Home Repair
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Reviewed in October 2014
Really great response to my emergency situ. Jackie was on it immediately! Geno came by to protect the opening until the (gorgeous) new skylight arrived. Which it did and was installed on time and efficiently. Great service from a family business and locals to boot. 5 stars all the way. ...
The HiLite Group, Inc.
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Reviewed in November 2013
T & G Roofing removed my old shingle roof and installed a new shingle roof. I called them after my roof had received bad wind damage. My friend referred me and told me that they were honest and provide excellent service. Mike Prescher came and provided me with a written estimate. He also told my...
T & G Roofing and Solar Company
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Reviewed in December 2007
Ideal Electric is a top notch excellent contractor who cares about the customers needs. They are hard working, efficient and professional on all levels.No change or request was too much for the crew who were happy to work with the homeowner to achieve the house I am working to create. i would...
Ideal Electric, Inc.
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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.

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

Yes, you should insulate your copper pipes to help regulate their temperature. Well-insulated copper pipes will be protected from freezing and can conserve energy by keeping hot water warm for longer. Foam rubber insulation tubes are the best pipe insulation to prevent freezing since they fit tightly around the pipes while still maintaining some flexibility.

Reduces energy costs, improves comfort, and prevents ice dams in winter.

According to a report from Energy.gov, radiant barrier installations can save between 5% and 10% on your energy bill each month that your HVAC cooling is in operation. That fact can mean savings of up to more than $325 per year for homes that experience frequent direct sunlight and high summer temperatures.

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