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>

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Q: Does tin foil on windows help with heat?

• <div><p>Spreading tin foil over your windows works similarly to <a href="https://www.angi.com/articles/radiant-barrier-cost.htm">radiant barrier insulation</a>, but not as well. It will reflect some of the sunlight that would otherwise come through the glass and warm up the inside of your home, so it might help a little to keep your home cool in the summer. However, the appearance isn&rsquo;t preferable to blinds or drapes that can offer the same benefits. You might also consider tinting your windows instead, which is a more aesthetically pleasing change that can still block a good portion of the solar heat coming through your windows.</p></div>

Q: Should you insulate your entire attic?

• <div><p>Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you&rsquo;ll need to do down the line. </p></div>

Q: What is the life expectancy of wool insulation?

• <div><p>Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years. </p></div>

Q: Can you install a radiant barrier under insulation?

• <div><p>It&rsquo;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. </p></div>

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Verified Reviews for Doorbell Installation pros in Chadron, NE

*The Angi rating for Doorbell Installation companies in Chadron, NE 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 Chadron, NE 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 April 12, 2025

Reviewed in April 2025
Job was completed efficiently and on time. Customer service and communication throughout the process was great.
Renewal by Andersen of Wyoming
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Reviewed in May 2019
Very easy to work with and does quality work!
Vintage Masonry, LLC
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Reviewed in July 2018
They come on time and are really good guys.
Fire and Ice Mechanical, Inc.
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Reviewed in June 2014
Technician was very thorough and called once the problem had been diagnosed, gave an estimate, and asked for permission before completing work. The work was done efficiently and the technician was very professional. We've used John Henry's several times, and have nothing but great things to...
John Henry's Plumbing, Heating, Air, and Electrical
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Reviewed in June 2014
It seemed to be ok but had a bad feeling about the price. Kind of a fast talker. <br />
Pit Stop Auto and Car Repair and Service
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Reviewed in June 2014
when picking out the carpet I was not only impressed by the variety they had but the different array of price ranges. they helped me find a quality carpet in my price range.I was allowed to bring the books home to see the carpet in the lighting of my home which made a huge change to my order. I...
MORFORD'S DECORATING CTR
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Reviewed in August 2013
I informed them in July or August that it had never been fixed and I stopped receiving bills. He called in May or June this year and wanted to come "fix" my air conditioning, which I had no intention of having him run the bill up anymore. I then had another company in Chadron come and fix it...
METAL PRODUCTS CO
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Reviewed in November 2012
At the end of September I stopped in to ask for a quote on replacing a <br /> water heater. I was told that they were very busy and they would get <br /> back to me in about two weeks. I left my name and number, went home and <br /> waited. I have still not heard from them a month and half...
Hencey Plumbing & Hydronics Inc
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Top-Rated Doorbell installation pros in Chadron - Updated Nov 2026

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Doorbell Installation FAQs, 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.

Spreading tin foil over your windows works similarly to radiant barrier insulation, but not as well. It will reflect some of the sunlight that would otherwise come through the glass and warm up the inside of your home, so it might help a little to keep your home cool in the summer. However, the appearance isn’t preferable to blinds or drapes that can offer the same benefits. You might also consider tinting your windows instead, which is a more aesthetically pleasing change that can still block a good portion of the solar heat coming through your windows.

Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you’ll need to do down the line.

Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years.

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.

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