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>

What is the best type of attic insulation?

• <div><p>The best type of attic insulation depends on where you live, your budget, and what stage of construction the attic is in. For example, if you're building a house, then structural insulated panels are a worthy investment since they're easy to install during construction and they're the most energy-efficient type of insulation. </p><p>Additionally, if you live in a very warm climate, then you can potentially save quite a bit of money by opting for reflective insulation, which is more affordable than comprehensive insulation but doesn't work well for cool climates. Blown-in, loose-fill, and spray foam insulation are all great options for attics in moderate climates.</p></div>

Does ductwork need to be insulated?

• <div><p>Insulating your ducts offers several benefits, including:</p><ul><li><p>Improved energy efficiency: Duct insulation prevents energy losses, reducing heating and cooling costs.</p></li><li><p>Cost savings: Lower energy bills make insulation a cost-effective investment.</p></li><li><p>Environmental benefits: Enhanced efficiency reduces your carbon footprint.</p></li><li><p>Consistent comfort: Insulated ducts help maintain a stable indoor temperature.</p></li><li><p>Better indoor air quality: Reduced allergens and pollutants improve air quality.</p></li></ul><p></p></div>

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*The Angi rating for Doorbell Installation companies in Lecompte, LA 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 April 14, 2026

Reviewed in April 2026
Statewide company that’s very knowledgeable and personable. Able to assist with any project related to solar installation including landscaping, insulation, ventilation, and minor roofing.
GroundUp Solar & Electrical LLC
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Reviewed in November 2025
I paid around 4000 dollars for them to install fence and after a month it fell down.I had to hire a new contractor and they charged me a little over 7000$ since there was ?practically no anchoring or structural support? I tried contacting them through various ways but they have blocked me.
Zabala Roofing & Construction, LLC
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Reviewed in December 2023
Orrin and his team were outstanding, I highly recommend them for any electrical project. An entire new electrical panel was installed, all outlets in my home were grounded, switches were added, dawn to dusk light added to carport and more. The team were professional, friendly and timely.
Kelley Electric
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Reviewed in April 2023
Very professional service and high quality work! Chris was very committed to ensuring the work was done to my expectations and communicated with me throughout the entire project. Any question I had from the initial quote all the way through the demo and install, he was very clear and put my mind...
Dog Tag Home Improvement
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Reviewed in August 2020
Had Window World install windows. This was the second attempt. The first windows were measured incorrectly. The windows were installed by unlicensed sub contractors. The owner, Luke, refused to come see the install when I asked him to come. He said the same guy that installed them would be back...
Window World of Central Louisiana
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Reviewed in July 2020
Airetron Air Conditioning and Heating Company from Leesville, La performed an excellent job in servicing the first floor unit and replaced and installed a new unit for the second floor. The technicians were highly efficient and kept us appraised of all work completed step by step. They also...
Choice Home Warranty
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Reviewed in October 2019
Mr. Dubrock was very reasonable and did an outstanding job of installing our floor. Employees were nice and friendly and cleaned up every day before leaving. I would definitely recommend him for any kind of work.
Joseph Pierre Dubrock
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Reviewed in June 2019
They were prompt to respond and the installation did not take too long. They maintained the aesthetic look of our home and now I have peace of mind during storms. Very nice people to hire (family business). Quality work!
Red, White, and Blue Lightning Protection
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Reviewed in April 2019
Brian displays a professional attitude at all times and he did a great job with this outdoor stone patio installation..
Adams Custom
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Reviewed in May 2018
I live in San Antonio, Texas, and am a full time caretaker for my husband and unable to travel. My stepmother has been ill in Alexandria and was not able to organize replacing 2 window air conditioning units. From SA, I was able to purchase 2 window units at the Alexandria Home Depot, but it was...
Micheals Cooling & Heating
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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.

The best type of attic insulation depends on where you live, your budget, and what stage of construction the attic is in. For example, if you're building a house, then structural insulated panels are a worthy investment since they're easy to install during construction and they're the most energy-efficient type of insulation.

Additionally, if you live in a very warm climate, then you can potentially save quite a bit of money by opting for reflective insulation, which is more affordable than comprehensive insulation but doesn't work well for cool climates. Blown-in, loose-fill, and spray foam insulation are all great options for attics in moderate climates.

Adding insulation to ceilings is an excellent way to increase the energy efficiency of your home. If your home's layout is such that you need insulation in the ceilings rather than in the roof, it's likely that at least some insulation already exists in the space. However, each additional inch of insulation you can add boosts the R-value by between 2.2 and 4.2.

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

Insulating your ducts offers several benefits, including:

Improved energy efficiency: Duct insulation prevents energy losses, reducing heating and cooling costs.
Cost savings: Lower energy bills make insulation a cost-effective investment.
Environmental benefits: Enhanced efficiency reduces your carbon footprint.
Consistent comfort: Insulated ducts help maintain a stable indoor temperature.
Better indoor air quality: Reduced allergens and pollutants improve air quality.

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