How do you identify asbestos tiles?

• <div><p>If you can locate building records, you may be able simply to see what type of tiles (or bonding agent) was used. Any flooring made between 1950 and 1989 more than likely contains asbestos. <a href="https://www.angi.com/articles/how-to-tell-if-you-have-asbestos-floor-tile.htm">Asbestos tiles</a> can also be slightly thicker than other tiles and often measure 9” x 9”, 12” x 12”, and 18” x 18. Black mastic was a commonly used adhesive that contains asbestos.</p></div>

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*The Angi rating for Percolation Testing companies in El Sobrante, 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 June 28, 2026

Reviewed in June 2026
I’m happy with the results!
BETTER CITY TREE SERVICES INC
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Reviewed in November 2025
I was very happy with my experience- I had an inspection done and both Sophia and La Quisha were very thorough in their inspection and talking through potential explanations and options. They put me at ease!
Sophie's Pest Solutions
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Reviewed in December 2022
Armando was knowledgeable and thorough. The final test will be to see if the termites return in 6 mow to a year. Service seemed comprehensive and tidy.
Vanguard Termite Control, Inc.
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Reviewed in July 2020
Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or...
Oak Plumbing Inc
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Reviewed in May 2017
I went on to Angie's List looking for mold remediation. I found this company and they came out and tested for mold. I worked with JC, she used some machines and tested the spore levels for mold. It was very high because there was no ventilation in the bathroom. She recommended some mold...
Certified-Environmental
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Reviewed in October 2016
Smoothly. It was several hours of work by Randy, and the result is a fully functioning fireplace. We are delighted with the result and very appreciative of Kidd Fireplace's action to find and implement a definitive and successful solution. As well, the new fireplace passes the cat test. No more...
Kidd Fireplace & Spa
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Reviewed in September 2016
Testing was complete and results within a few days.
A1 Certified Environmental
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Reviewed in October 2008
The process was mostly smooth, however, there were a few odd miscommunication along the way. The estimator insisted on providing sample paints for us to test. When I asked for some sample paint, the owner of the company complained about the cost, stating each sample would cost him $15! I went to...
CertaPro Painters of Berkeley
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Percolation Tests questions, answered by experts

The cost for asbestos testing typically ranges from $400 to $800. The final price depends on several factors, including the number of samples needed, the size and age of the property, and the professional's expertise required for comprehensive testing. Larger or older properties may have higher costs.

Asbestos itself does not typically leak from a roof. However, if an asbestos-containing roof is damaged or deteriorated, it can release asbestos fibers into the air. This can occur when the roof is disturbed, such as during maintenance or repairs, or due to weathering over time. Exposure to airborne asbestos fibers can be harmful to health, so it is important to address any damaged asbestos roofs promptly and safely.

If asbestos is found, it is crucial to consult with a professional. They will provide recommendations for appropriate abatement actions, which may include safe removal, containment, sealing, or enclosure. All actions must be planned and executed in accordance with local regulations for handling asbestos.

It is not recommended to drill into asbestos siding because doing so can release hazardous asbestos fibers into the air. The safest way to handle asbestos-containing materials is to have a professional remove or encapsulate them.

If you can locate building records, you may be able simply to see what type of tiles (or bonding agent) was used. Any flooring made between 1950 and 1989 more than likely contains asbestos. Asbestos tiles can also be slightly thicker than other tiles and often measure 9” x 9”, 12” x 12”, and 18” x 18. Black mastic was a commonly used adhesive that contains asbestos.

The El Sobrante, 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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