Is it safe to cover an asbestos popcorn ceiling?

• <div><p>Some pros may recommend covering a popcorn ceiling that tests positive for asbestos with beadboard ceiling planks or drywall. The <a href="https://www.angi.com/articles/cost-to-install-beadboard-over-popcorn-ceiling.htm">cost to install a beadboard ceiling</a> averages more than $5,000, but you likely will pay more than the average for the installer to deal with the asbestos safely. Installing a beadboard ceiling or new drywall will disturb the asbestos and release some microscopic fibers, so the installer will need to take precautions. </p></div>

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Q: Does knob and tube wiring have asbestos?

• <div><p>Knob and tube wiring is an older type of electrical wiring that's no longer used and <a href="https://www.angi.com/articles/knob-and-tube-electrical-wiring-safe.htm">generally not considered safe</a>. However, some homes still have it, or may have a knob and tube wiring system that was incorrectly modified or rigged to work with a modern electrical system. Knob and tube wiring may contain asbestos insulation, but the only way to know is to have the material professionally tested.</p></div>

Q: Can asbestos be absorbed through the skin?

• <div><p>While asbestos can&rsquo;t be directly absorbed through the skin&mdash;the fibers are too big&mdash;skin contact can still produce symptoms. Contact dermatitis can flare up in sensitive individuals but in most cases, the danger from asbestos comes from inhaling the fibers, or dust, that is produced when asbestos is disturbed. If you touch asbestos by accident, immediately wash yourself and your clothes.</p></div>

Q: How do professionals test for other toxic materials in a home?

• <div><p>Professionals use specialized equipment and techniques to detect asbestos, radon, and VOCs.</p></div>

Q: What products still contain asbestos?

• <div><p>There are products that still contain asbestos, but they were typically installed decades ago. Common places where you may still find asbestos-containing materials are in siding, wrapped around ductwork, in older appliances (i.e., stove and gravity furnaces), and in floors. Asbestos was primarily used as an insulator, so anywhere in an older home where you lose heat is where you will most likely find asbestos.</p></div>

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Verified Reviews for Percolation Testing pros in Waterproof, LA

*The Angi rating for Percolation Testing companies in Waterproof, LA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.

*The HomeAdvisor rating for Percolation Testing companies in Waterproof, LA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Percolation Testing needs.

Last update on March 19, 2026

Reviewed in March 2026
I?m extremely satisfied with Rexx Roofing! Their team was professional, punctual, and delivered high-quality work. The entire process was smooth and stress-free. Highly recommended!
REXX ROOFING
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Reviewed in October 2025
Frank was very professional with our entire project. He was polite from start to finish. He communicated with us throughout the project and we highly recommend him to anyone in need of electrical services. And he’s also very respectful. He’s a great person and great businessman.
ER Electric
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Reviewed in September 2023
The fans were very complicated to install. They handled it with ease. TheyÃ¢Â Â re very experienced electricians and want to satisfy their customer. They were very clean after the job was done. Would definitely recommend them and use them again.
CST Services, LLC
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Reviewed in August 2023
Quality work. Good follow up.
Thompson Tree & Spraying Service, Inc.
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Reviewed in May 2022
Remi was very professional and knowledgeable. He kept me informed of everything he was doing along the way. He also gave me recommendations on prevention.
Thomas Appliance
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Reviewed in March 2019
Very professional and good quality work. The response time was fantastic. I would definitely recommend Romero
Romero's Appliance Repair
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Reviewed in February 2016
I am so pleased with the quality of work, the customer service, and the range of services offered by Jeff's Handyman. Pricing is reasonable and I feel like they go out of their way to make sure I am pleased with their work. They are prompt, courteous, and clean up after themselves. I have...
It Is Finished Handyman Services, LLC
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Reviewed in November 2015
Very well. I contacted Hewitt's Roofing, Inc. Talked with clerks about what I needed done. Then, to the manager. Agreed on price and work to be performed. I am very pleased with this work.
Hewitt's Roofing Inc
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Percolation Tests questions, answered by experts

Knob and tube wiring is an older type of electrical wiring that's no longer used and generally not considered safe. However, some homes still have it, or may have a knob and tube wiring system that was incorrectly modified or rigged to work with a modern electrical system. Knob and tube wiring may contain asbestos insulation, but the only way to know is to have the material professionally tested.

While asbestos can’t be directly absorbed through the skin—the fibers are too big—skin contact can still produce symptoms. Contact dermatitis can flare up in sensitive individuals but in most cases, the danger from asbestos comes from inhaling the fibers, or dust, that is produced when asbestos is disturbed. If you touch asbestos by accident, immediately wash yourself and your clothes.

Some pros may recommend covering a popcorn ceiling that tests positive for asbestos with beadboard ceiling planks or drywall. The cost to install a beadboard ceiling averages more than $5,000, but you likely will pay more than the average for the installer to deal with the asbestos safely. Installing a beadboard ceiling or new drywall will disturb the asbestos and release some microscopic fibers, so the installer will need to take precautions.

Professionals use specialized equipment and techniques to detect asbestos, radon, and VOCs.

There are products that still contain asbestos, but they were typically installed decades ago. Common places where you may still find asbestos-containing materials are in siding, wrapped around ductwork, in older appliances (i.e., stove and gravity furnaces), and in floors. Asbestos was primarily used as an insulator, so anywhere in an older home where you lose heat is where you will most likely find asbestos.

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