Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

Does bathroom insulation need a vapor barrier?

• <div><p>Yes. Bathroom insulation requires a vapor barrier. As a matter of fact, bathrooms and kitchens are the two areas of the home that should always get a vapor barrier because of the excess moisture. If you don’t have a vapor barrier in place in these rooms, the moisture will build up and eventually lead to mold and bacteria, not to mention the destruction of the insulation.</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 Sun Valley, CA

*The Angi rating for Doorbell Installation companies in Sun Valley, 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 Sun Valley, 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 September 27, 2026

Reviewed in September 2026
I recently had a new garage door installed. The team worked carefully, completed the installation efficiently, and made sure the door was operating properly.
Garage Dooor of Burbank C30
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Reviewed in August 2025
Sam was exactly who I needed to help me install some window shades. Friendly, professional, and does excellent work. Highly recommend.
Hangman Sammi D
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Reviewed in May 2025
I really love my new insulated tilt up door that Gavin from Apex garage doors installed. It even has a built in pedestrian door. They gave me a great deal and were very quick with the install.
Apex Garage Doors LLC
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Reviewed in May 2024
Great job with my garage door installation. The guys came in took the measurements, quoted the price for the project, offered several options. Then ordered to my need the exact what I wanted and installed in one day. Beautiful job, top notch, highly recommend.
ARAM G CONSTRUCTION INC
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Reviewed in November 2023
Easy to work with and installation went smoothly. Offered a price that beat all competitors.
Top Energy Solutions, Inc.
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Reviewed in April 2023
One of the best installers that I know, great quality, and workmanship.
Arroyo's Tile & Granite Inc.
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Reviewed in December 2022
Called imperial to get a quote for a new garage door installation, they had scheduled Sam to come the next day and he was great! Gave me a wide range of options and was very honest about the prices. Once we agreed on a the new door and price after 4 days Sam and his crew had people come out and...
Imperial Garage Door & Gates
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Reviewed in March 2022
Excellent service and execution of installing our 2 new doors and security screen
Halaby Homes
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Reviewed in December 2021
The new garage door they installed looks amazing. Thank you!!
Imperial Garage Door & Gates, Inc.
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Reviewed in September 2021
Called and came out quickly. Did the install in a few minutes. Price was very fair. Would recommend him highly and will call him again if I need anything else done.
First Thought Plumbing
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Top-Rated Doorbell installation pros in Sun Valley - Updated Nov 2026

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Doorbell Installation FAQs, answered by experts

Ensures uniform application and maximizes insulation effectiveness and energy savings.

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

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Yes. Bathroom insulation requires a vapor barrier. As a matter of fact, bathrooms and kitchens are the two areas of the home that should always get a vapor barrier because of the excess moisture. If you don’t have a vapor barrier in place in these rooms, the moisture will build up and eventually lead to mold and bacteria, not to mention the destruction of the insulation.

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.

The Sun Valley, CA homeowners’ guide to doorbell installation services

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