How long does it take for asbestos to harm you?

• <div>According to the National Cancer Institute, asbestos-related diseases can take anywhere from 10 to 40 years for symptoms to appear. The health risks increase with prolonged and heavier exposure. Risk factors also include:<ul><li>Amount of exposure</li><li>Chemical makeup, size, and shape of the asbestos fibers</li><li>Length of time a person is exposed to asbestos</li><li>Genetic factors </li><li>Source of exposure (direct exposure or secondhand exposure from someone directly exposed)</li></ul></div>

Do I have to worry about a new popcorn ceiling having asbestos?

• <div>No, you do not have to worry about new popcorn ceilings having asbestos. All residential building materials used since the mid-1980s stopped including asbestos, so new popcorn ceilings have no risk of asbestos. You can still <a href="https://www.angi.com/articles/cost-to-texture-drywall.htm">create a textured drywall ceiling</a> with a popcorn texture if you like, but new techniques have no risk of adding asbestos. </div>

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

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Last update on April 30, 2026

Reviewed in April 2026
Dave was super helpful and steered me toward the real solution I needed -- not testing but direct remediation of a leaking window and wall. His experience really helped get the job done and to calm my nerves after I discovered the leak!
Moisture & Restoration Consultants, LLC
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Reviewed in April 2026
I recently hired Chris to install a Rivian home charger, and he absolutely knocked it out of the park! From the first call to the final cleanup, the entire experience was professional, efficient, and stress-free. He arrived on time, took the time to walk through the best options for my garage...
Christopher Robert Ceinar
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Reviewed in December 2022
The technician was very personable, knowledgeable and didnâ t complain after having to crawl through a yucky crawl space in order to replace the outside faucet. We were impressed!!!
River City Plumbing
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Reviewed in February 2022
I wasn't on hand to actually evaluate workmanship. Water leak was the reason we called and although they might have finished the job without actually doing a water test, I asked them to do one and they came back and did it. No leaks. Very easy to communicate with, and very responsive!
Roof Recovery
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Reviewed in June 2019
Rapid response, quick and efficient testing. Cordial with good communication and follow up of related questions. Highly recommend.
Norcal Environmental Management, Inc.
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Reviewed in May 2017
Carlos was prompt, courteous, knowledgeable about plumbing, & electric.m. He is a great communicator, goes through the process of possible problems and repairs in a thorough and logical manner, and was able to translate it into layman terms on the invoice so anyone could understand it. Carlos...
High Tech Plumbing
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Reviewed in February 2014
A number of tests were made, and careful analysis leading to the right solution.
Ongaro & Sons
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Reviewed in January 2014
This is the first time I called Boden Plumbing, and it turned out to be a very good experience. I called Boden, and described the problem of my tanent's toilet. The toilet leaks a little bit at the bottom. Casey told me the toilet needs to be reseated and gave me an...
Boden Plumbing Inc
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Reviewed in December 2012
They found nothing, gave us a bill for 295 and recommended an infrared test costing 500 which they could not do until much later. Note that they said over the phone that the amount was for 2 hours of leak detection but they only stayed for 45 minutes. The next day, my wife looked outside and...
American Leak Detection - SF Bay Area
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Reviewed in November 2012
Did a good job of taking out all the old duct work including the asbestos wrappings. Cleaned up completely after themselves and also tested the air quality to check for any airborne contaminants. Send us full reports of the air testing and full certifications once the job was done. Very...
Synergy Co
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Percolation Tests questions, answered by experts

According to the National Cancer Institute, asbestos-related diseases can take anywhere from 10 to 40 years for symptoms to appear. The health risks increase with prolonged and heavier exposure. Risk factors also include:

Amount of exposure
Chemical makeup, size, and shape of the asbestos fibers
Length of time a person is exposed to asbestos
Genetic factors
Source of exposure (direct exposure or secondhand exposure from someone directly exposed)

Often found in old insulation, tiles, and roofing materials in pre-1980s buildings.

Sampling typically takes 1-3 hours, and depending on the provider, lab results are available within 2-7 days.

No, you do not have to worry about new popcorn ceilings having asbestos. All residential building materials used since the mid-1980s stopped including asbestos, so new popcorn ceilings have no risk of asbestos. You can still create a textured drywall ceiling with a popcorn texture if you like, but new techniques have no risk of adding asbestos.

Asbestos-containing materials are not easily affected by water and do not disintegrate or dissolve when exposed to it. However, porous materials can deteriorate due to water exposure, leading to the release of asbestos fibers into the air. The settling of asbestos fibers can also occur as water makes them heavy, which reduces the risk of airborne exposure, though future disturbance of the materials could cause risk. Wetting asbestos-containing materials does not constitute safe removal, and the proper handling and disposal of asbestos materials should be left to professionals.

The Novato, CA homeowners’ guide to percolation testing services

From average costs to expert advice, get all the answers you need to get your job done.

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