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 Groton, CT 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 January 18, 2026

Reviewed in January 2026
I explained the issue and was able come out in a timely manner and get the job done. I recommend to anyone because of the quality and knowledge provided. Very accommodating by testing my water and taking it to the lab. Thank you for the great service.
Advanced Well and Home Solutions
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Reviewed in March 2024
I called asking for water testing to address well water tasting and smelling like Sulphur. They came 30 minutes late to collect the sample. Results were for two tings related to portability with no explanation, nothing about Sulphur at all. I emailed and left two messages with no response. Had...
Allegiant Home Inspections LLC
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Reviewed in March 2020
I really liked how informative Mold Spotters was throughout the entire process of testing and results being given. Reasoning of why I should or shouldn't get what specific tests were thoroughly explained with no intentions to upsell for repairs or fixes since they don't partner with companies to...
Mold Spotters
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Reviewed in November 2017
Dan did well he found my dry wells and dug test well. I decided to wait to finish project.
Dan Mackin, Jr., Construction
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Reviewed in August 2015
<p>Right from the get-go these gentlemen were impressive. I called late on Monday to schedule an appointment for an estimate and they were here first thing Tuesday morning. After receiving the estimate (calculated on the spot) I was pleased, and asked when they could do the work. To my amazement...
J & J Plumbing and Heating LLC
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Reviewed in June 2014
Master plumber appeared with helper. Install was quick. Plumber and helper very professional. <br /> I was given a morning window of time but no specific time. Not a problem for me but it would help to obtain an approximate time. <br /> toilet was tested, pipes in basement were tested for...
Zanella Plumbing and Heating Inc
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Reviewed in April 2014
I switched from the business (Leffingwell Pools) that installed the hot tub a year ago because it was such a horrible experience having the tub installed and now it is only open now for a few short hours on Saturdays. I ended up giving that business a F rating. Pools, etc is so professional...
Pools Etc Inc
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Reviewed in December 2012
I called to perform routine boiler maintenance. He discovered a possible leak when disassembling the boiler. Completely cleaned the boiler which had been neglected for a couple years. After cleaning and inspecting he thought perhaps the wetness he discovered was coming down from the chimney....
AllTemp Climate Control LLC
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Reviewed in January 2012
They came sometime last summer to do a water test on our well system (perhaps it was July). We never heard back from them, so we called and found out that the test results had been lost at the lab in Pennsylvania. We had to have the plumbers come again to test our water. No results as of yet.
Tomaszek and Sons Plumbing, Heating and Pumps
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Percolation Tests questions, answered by experts

Vermiculite insulation that comes from a particular mine before 1990 is likely to contain asbestos. This is particularly true in the U.S. However, not all types of vermiculite insulation contain asbestos. Since you can't detect the presence of asbestos without special equipment, it's best to assume that the insulation contains the dangerous mineral and to either leave it alone or hire a professional to handle it.

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.

If you own a stereo microscope, you should be able to see the fibers. The stereo microscope often can perform magnification up to 50x. But unless you have experience viewing asbestos fibers, you may not know exactly what you are seeing. Some fibers are curly, while others are long and straight. Blue, brown, white, and gray colored fibers are all possible.

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed.

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.

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