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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*The Angi rating for Doorbell Installation companies in Downsville, NY 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 June 26, 2026

Reviewed in June 2026
Outstanding Kitchen Renovation Experience We recently had our kitchen completely redone, and we couldn&#39;t be happier with the work Joel did. From start to finish, he was professional, reliable, courteous, and incredibly easy to work with. He showed up when he said he would, kept...
Joel Kushnick
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Reviewed in June 2026
Freddy was fantastic. He solved a difficult issue with our current electrical wiring and installed a fan for us. Both issues were quite tricky. I would highly recommend him for any electrical project you might have.
RG Handyman
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Reviewed in November 2025
We had hardwood flooring installed and multiple rooms painted, and we’re very happy with the results. The team was professional, efficient, and paid great attention to detail. Everything was completed on time and looks fantastic. Highly recommend their services- we will use them for future...
RP FAM LLC
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Reviewed in August 2024
Pultz Boyz did our house with new fascia and fascia boards and vented soffit over wood and fixed other problems spots on our house roof. Then he did such an excellent job; we had then tear off our outside garage and shed roofs and install new shingles and drip edge. Dante aims to please and...
Pultz Boyz Roofing & Construction
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Reviewed in June 2024
I highly recommend their services to anyone in need of a reliable and skilled windows install company. The team at this company truly goes above and beyond to deliver exceptional results.
NY Galaxy General Contracting, Inc.
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Reviewed in June 2023
Atlas James saved the day. After having such a horrible experience with F&F Custom Contracting, and them refusing to correct the issue I contacted Atlas James, they went above and beyond to obtain the exact type of quartz (no easy feat) and installing it in one piece. The customer service,...
Atlas James Construction & Fabrication
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Reviewed in May 2022
Nothing but praise. The timeline was exactly as described. The responsiveness and installation was perfect, and the adjustments resulted in a lower cost with better performance. I wish I needed another system!
Auchinachie Plumbing LTD
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Reviewed in July 2019
Very pleased with my driveway installation, High Quality Work done quickly, expertly, and for a fair price. I would recommend J Young Asphalt to anyone considering a new driveway or re-paving an existing one.
J. Young Asphalt
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Reviewed in March 2019
Hired American Electric to install full home generator. Work was done in a timely fashion. We have not the need to use the generator yet though. Customer service was great.
American Electric LLC
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Reviewed in January 2019
I Fencing took on a large installation project of pet fencing, as well as several related tasks. They did an excellent job despite very challenging weather conditions. Some of the workers were a bit careless about picking up trash but aside from that, I was extremely pleased with the work...
I Fencing, Inc.
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Doorbell Installation questions, answered by experts

Installing insulation helps reduce energy usage, improve home comfort, and lower utility bills by maintaining stable indoor temperatures year-round.

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.

DIY insulation installation is feasible, particularly for basic rolls or batts, if you have the right protective gear and knowledge. However, hiring a professional ensures even, full coverage for maximum efficiency.

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.

While fiberglass is dangerous to work with, it’s a perfectly safe material once it’s installed. If you’re tackling the installation yourself, make sure you take the proper safety precautions and wear the right gear to avoid skin and eye irritation and lung complications. Working with a professional insulation company can mitigate these risks.

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