What are the signs of asbestos?

• <div><p>Unlike some home problems, such as water damage or pest infestations, asbestos can be very difficult to spot. Asbestos is a mineral in the form of microscopic fibers and was previously used in building materials for its bonding and fireproofing abilities. Insulation, roof shingles, ceiling tiles, floor tiles, pipe wrappings, soundproofing materials, and textured paint features like popcorn ceilings are common sources of asbestos, particularly in homes built before 1980.</p><p>Age is perhaps the biggest indicator of asbestos, as legislation passed in the 1970s labeled asbestos as dangerous and regulated its use in building materials. Signs of age in the form of wear and tear or material degradation are also indicators that asbestos fibers may be leaking into the air, but ultimately, it’s difficult to detect with the naked eye. If you have reason to suspect asbestos in your home, it’s best to hire a certified asbestos inspector.</p></div>

Is asbestos commonly found in older homes?

• <div><p>Asbestos is commonly found in certain older homes, depending on the time period in which they were built. Asbestos use in home construction began in the 1920s and peaked after World War II before being limited by legislation in the ’70s, so a house constructed in 1880 is unlikely to contain asbestos, while one built in 1950 is much more likely to. Research a home’s history to determine the time period when it was built and any renovations made since. </p></div>

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*The Angi rating for Percolation Testing companies in Molalla, OR 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 October 09, 2025

Reviewed in October 2025
PDX Repair Team recently did a kitchen upgrade for us. They showed up on time, kept true to their bid, were very professional and easy to work with. Will definitely use them in the future.
PDX Repair Team, LLC
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Reviewed in May 2024
It went well, we are pleased with the results.
BFP Electric LLC
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Reviewed in February 2024
I was pleased with meeting them, telling and showing them what was needed and then trusting them to do the work needed. I was overly pleased with the results. I was at work while they did the job and everything was in place when I got home.
Pearl’s Cleaning
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Reviewed in August 2022
I called them and they answered very promptly. Very helpful answering all my questions and concerns. They are great at communicating and finding a date and time for the service that worked for me. They tested my mold and treated my walls and called me back within 2 days with results. Great...
Restoration Techs
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Reviewed in March 2022
They kept it really professional, did exceptional work, and explained the work to me. I could not be happier using that as a power washing company,.
JtnT Clean
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Reviewed in January 2022
Fast work, very well priced, and got the job done. I had a flow problem following the work (sediment in the lines) which the promptly returned the following day to repair, at no additional cost to me. I’ll use them for my next project.
John's Waterproofing Co.
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Reviewed in January 2022
He installed the faucet quickly. The faucet is working well as expected.
Daly Plumbing & Construction
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Reviewed in January 2017
the oven did not work after a self-cleaning. The technicians took the oven out of the wall, identified that a sensor had overheated and had failed. They made a factory recommended modification to move the sensor away from the heat source, and replaced the sensor. A self-cleaning test run proved...
B&G Appliance
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Reviewed in January 2017
Although IRS was very responsive and efficient when it came to testing for asbestos they ignored multiple requests for the follow up abatement work. Although they did finally provide a quote via email I called and emailed asking for clarification and a quote for a variation on the job multiple...
IRS Environmental of Portland, Inc.
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Reviewed in January 2013
My wife and child have been experiencing some unusual health problems which we could not definitively identify a cause of. We turned to a naturopath who asked if we had mold issues. We have a newer house so initially we said no, but she recommended that we obtain a mold inspection and testing of...
Mold Inspection Sciences of Portland
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Percolation Tests questions, answered by experts

The Environmental Protection Agency (EPA) banned the use of asbestos pipe insulation in certain applications in 1975. It released further bans in 1989 and 2019. While asbestos pipe insulation was common from the 1930s to 1970s, its use fell off after the 1970s due to public concern and the EPA's actions.

Unlike some home problems, such as water damage or pest infestations, asbestos can be very difficult to spot. Asbestos is a mineral in the form of microscopic fibers and was previously used in building materials for its bonding and fireproofing abilities. Insulation, roof shingles, ceiling tiles, floor tiles, pipe wrappings, soundproofing materials, and textured paint features like popcorn ceilings are common sources of asbestos, particularly in homes built before 1980.

Age is perhaps the biggest indicator of asbestos, as legislation passed in the 1970s labeled asbestos as dangerous and regulated its use in building materials. Signs of age in the form of wear and tear or material degradation are also indicators that asbestos fibers may be leaking into the air, but ultimately, it’s difficult to detect with the naked eye. If you have reason to suspect asbestos in your home, it’s best to hire a certified asbestos inspector.

While a professional can always help, there are some common plumbing culprits you can check yourself to see if you can find the sewer gas smell. For example, you should check your water traps, sometimes called P-traps and S-traps, which are located under sink, shower, and laundry drains. The wax ring beneath the base of your toilet, which creates a watertight seal with the plumbing, could also have gone bad.

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

Asbestos is commonly found in certain older homes, depending on the time period in which they were built. Asbestos use in home construction began in the 1920s and peaked after World War II before being limited by legislation in the ’70s, so a house constructed in 1880 is unlikely to contain asbestos, while one built in 1950 is much more likely to. Research a home’s history to determine the time period when it was built and any renovations made since.

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