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>

How do I choose the right type of insulation?

• <div><p>Your home's location, budget, and the type of insulation you’re using are just a few of the factors that can help you <a href="https://www.angi.com/articles/r-you-using-right-type-home-insulation.htm">choose the right insulation</a>. For example, blown-in insulation is typically used in attic spaces, while batts and rolls are ideal for floors and walls. Blown-in insulation is usually a good option if you're adding more insulation to an area that already has some, but not enough.</p></div>

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Last update on June 30, 2026

Reviewed in June 2026
Josh and Mr. James did a fantastic job on my porch. I will be using them again for my next project. It’s worth the time and money.
JS Construction and Custom Cabinets LLC
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Reviewed in June 2026
Every interaction was great. From the quick response to my request and the flexibility to work with my schedule to the repair was exceedingly professional. Eric arrived on time and was friendly. Provided me with sound advice. I know who to call for this type of work without a doubt. Thank...
Magnolia Dock & Door LLC
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Reviewed in January 2026
great work. price was greatand punctial. I highly recommend Mississippi Gutter Solutions. two thumbs up
Mississippi Gutter Solutions LLC
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Reviewed in October 2023
Very Professional and Quality Work.
Anclo Homes LLC
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Reviewed in May 2023
They provided very good service.
Zod Crafts Services
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Reviewed in May 2023
The cleaning was top notch & was very thorough & accommodating!! Definitely worth the money!!
5 Star Cleaning Services LLC
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Reviewed in February 2023
This company is very professional and Mr Tim explains everything step by step. The work was great everything that they said they would do the work was actually perform. They fixed the foundation on an older home and they did a phenomenal job. I would recommend them any day.
Accu Lift Foundation Repair
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Reviewed in November 2022
Very good communication and prompt service.
Jones 4 Seasons Lawn Care, LLC
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Reviewed in March 2022
Anthony was very professional. Job done timely. All debris removed. Courteous and kind. This is our second time to use this service. I highly recommend him.
Olive Branch Property Maintenance
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Reviewed in February 2022
Prompt, friendly, professional, and quality.
Fireplace Chimney Sweep Solutions
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Doorbell Installation questions, answered by experts

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.

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.

Your home's location, budget, and the type of insulation you’re using are just a few of the factors that can help you choose the right insulation. For example, blown-in insulation is typically used in attic spaces, while batts and rolls are ideal for floors and walls. Blown-in insulation is usually a good option if you're adding more insulation to an area that already has some, but not enough.

Improves water efficiency, reduces oversight, and enhances landscape health.

Upgrading insulation offers several benefits, including improved energy efficiency, which leads to lower heating and cooling costs. It also enhances indoor comfort by regulating temperature and can provide noise reduction. Additionally, better insulation has a reduced environmental impact and can increase your home's value and overall livability.

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