What are the best ways to insulate an attic?

• <div><p>Blown-in insulation works, but only for unfinished attics. Also, it isn’t the longest-lasting nor the most effective option. For better options, look into <a href="https://www.angi.com/articles/diy-spray-foam-insulation-kits.htm">spray foam insulation</a> or natural fiber batts. They typically have a longer lifespan, better heat resistance, and stronger sound-proof abilities. Spray foam insulation costs about $1.25 to $1.50 per square foot, but can go up to more than $4 per square foot. Fiber batt pricing varies depending on the material.</p></div>

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>

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Last update on June 05, 2025

Reviewed in June 2025
Great experience from start to finish! Communication was great and installation was done in 5 hours. Great company to work with!
DanDale Fence
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Reviewed in May 2025
Installation was professional. Communication was time and installer was punctual. Installer reviewed purpose of installed components and maintenance of equipment.
Progressive Water Solutions, LLC
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Reviewed in August 2023
Chris did a fine job going "above and beyond" to accomplish the rooftop installation!
Cyber Dish, Inc.
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Reviewed in August 2022
The experience was incredible. The professionalism that was extended from the initial ring of the doorbell to the final cleanup was above and beyond what we expected. Hats off to everyone involved, especially the installers.
The Remodeling Company LLC - Raleigh
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Reviewed in May 2022
The install went very well, I am extremely happy. He showed up on time and was very polite and professional
GetIT Service and Installation
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Reviewed in April 2022
Absolutely fantastic work by Joey and the guys with E2! Through, effecient and knowledgeable. System came with my new home, David did the initial explanation and setup with us and was very thorough! I just had them add 4 camera and an upgraded doorbell cam and mesh network and I have to say, I'm...
E2 Technologies, Inc.
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Reviewed in February 2022
Luke and Dustin did an excellent job installing our new patio doors. The installation was done in a timely manner, looked great upon completion and the clean up afterward was fantastic. The installers were courteous and professional. Would highly recommend this company.
West Shore Home Raleigh-Durham
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Reviewed in August 2021
We were not notified what day they would do the installation of our fence. They just showed up one day. Luckily we were home so they we able to do the installation.
Season to Season Landscaping
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Doorbell Installation questions, answered by experts

Blown-in insulation works, but only for unfinished attics. Also, it isn’t the longest-lasting nor the most effective option. For better options, look into spray foam insulation or natural fiber batts. They typically have a longer lifespan, better heat resistance, and stronger sound-proof abilities. Spray foam insulation costs about $1.25 to $1.50 per square foot, but can go up to more than $4 per square foot. Fiber batt pricing varies depending on the material.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

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.

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.

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