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>

How do I report exposure to asbestos?

• <div><p>According to the Environmental Protection Agency (EPA), you should contact the following officials to report a case of asbestos exposure:</p><ul><li><p>Asbestos subject matter experts in your state </p></li><li><p>EPA regional office</p></li><li><p>Toxic Substances Control Act (TSCA) Assistance Information Service Hotline via mail, email, or phone</p></li><li><p>EPA’s Asbestos Ombudsman via phone or fax </p></li></ul><p></p></div>

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*The Angi rating for Percolation Testing companies in Candia, NH 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 18, 2026

Reviewed in October 2026
Brian of Southern NH HVAC Services installed a Bosch heat pump packaged with a new furnace in my home. The project was tidied up after each work day and was completed in a timely manner. Upon completion, Brian took his time to test and commission each heat pump function, double checking airflow...
Southern New Hampshire HVAC Services
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Reviewed in April 2021
Gerry was very thorough, professional and generous with his time and knowledge. He took extra time to test and verify that everything was set up and working to spec, code and optimal efficiency including calling the boiler manufacturer to verify the exhaust specs in relation to my recent flu...
Kingdom Cooling
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Reviewed in April 2020
Dan came early and performed tests on my kitchen floor quickly and precisely while ensuring the area was safe. The sample sites were taped up. Dan sent our samples to the lab and we received our results promptly. Would definitely recommend him to anyone needing an inspection!
Millyard Home Inspection
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Reviewed in October 2019
Overall, I would use L&M again and/or recommend. L&M responded promptly and professionally to my request to expedite this home inspection. Time from request to report, <3 days (not incl water test). When Rich got to the home to place the radon canisters, he noticed a strong propane odor...
L & M Home Inspection Service, LLC
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Reviewed in September 2016
I've been using LaChance for 18+ years and the last two have been challenging. I had them install a new kick heater this summer and the technician did not test since it was a hot day. I agreed. Come September and my boiler won't click on. They cannot come for 4 days. It's probably a simple fix...
LACHANCE PLUMBING & HEATING INC
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Reviewed in August 2016
This gentleman was pleasant, efficient and completely honest about findings and what I should be concerned about and what was everyday wear and tear or low budget items to repair. He also did water testing and made a special trip to do that first to insure that the rest of the inspection would...
Morrison Home Inspections LLC
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Reviewed in October 2014
<p>In November 2013, my horse was getting diarrhea from my water. It went away if I got water from elsewhere and came back if I used my well water. I did lots of water testing at the New Hampshire State Lab that was coming up with no possible reason. In March of 2014 I went to another water...
Aqua Specialties LLC
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Reviewed in January 2014
It is refreshing to deal with a company (real people) who genuinely care for their customers. Your friendliness and professionalism was outstanding. I thank you for the bottom of my heart for your genuine concern for my health and following up emails. If it wasn't for you doing this test on...
Indoor Doctor, LLC
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Reviewed in April 2011
He worked to replace the tank parts on the first toilet which originally was not flushing very well. He announced it was complete and moved onto the second. I went to flush the first toilet and now it won't shut off. I had him stop work on the second toilet and go back to the first toilet and...
BA Carson Inc
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Reviewed in March 2010
they did the project (radon in water and air plus arsenic) in a professional manner . completed the job testing and all. Very happy with the company.
US Water Consultants, Inc.
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Percolation Tests FAQs, answered by experts

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.

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

Homes built before the 1990s may contain asbestos, but the only way to be sure is to have your home tested. Hire an asbestos testing and removal service to determine whether you have the hazardous material in your home and the best process for removing or sealing it.

According to the Environmental Protection Agency (EPA), you should contact the following officials to report a case of asbestos exposure:

Asbestos subject matter experts in your state
EPA regional office
Toxic Substances Control Act (TSCA) Assistance Information Service Hotline via mail, email, or phone
EPA’s Asbestos Ombudsman via phone or fax

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.

The Candia, NH homeowners’ guide to percolation testing services

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