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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Q: Does vermiculite insulation contain asbestos?

• <div><p>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.</p></div>

Q: Do all gravity furnaces have asbestos?

• <div><p>No, but it&rsquo;s common that they do. Gravity furnaces weren&rsquo;t terribly efficient so wrapping either the ductwork in asbestos, the furnace itself, or both, was something done regularly. This allowed the system to retain more heat. At the time, this greatly enhanced the efficiency of the furnaces but it wasn&rsquo;t until later that we became aware of just how carcinogenic and dangerous asbestos could be.</p></div>

Q: Does a home seller have to disclose asbestos to potential home buyers?

• <div><p>Federal law doesn&rsquo;t require homeowners to disclose the presence of asbestos in their home, but some states and local municipalities may require it. That is why it&rsquo;s important to test an older home for asbestos and other health hazards before moving forward with a sale.</p></div>

Q: Does an N95 mask protect against asbestos?

• <div><p>No, an N95 mask will not protect against asbestos and many other hazardous materials, such as carbon monoxide, gas, chemical vapors, and other gases. You will need a respirator specifically designed to protect against asbestos. However, if you suspect asbestos is present in your home, <a href="https://www.angi.com/articles/hire-pro-asbestos-testing-and-removal.htm">hire an asbestos abatement professional</a> immediately and avoid the area until they arrive for the inspection.</p></div>

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Verified Reviews for Percolation Testing pros in Caledonia, MN

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

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

Last update on April 28, 2026

Reviewed in April 2026
They were able to come and give me an estimate very quickly. They were able to start the project within two weeks. When they started the project, they came when expected and were very efficient. They let me know every step of the way and cleaned up after themselves. The floor looks beautiful. I...
Select Hardwood Floors, LLC
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Reviewed in November 2025
I called them and asked if they could possibly fix my sink that was leaking ..they were able to get here that day within a few hours . I would definitely call them again when I need help . Infact we are going to scedule a time to put a sump pump in my basement for the next project.
Nelson Handyman service's LLC
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Reviewed in August 2024
They did a great job- completed the project in the day, did everything we asked of them, asked query for us and did as we asked them,
Mad City Windows & Baths
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Reviewed in April 2024
Facing wet basement problems is the most terrifying experience, but they handled the job, and got it done well.
Groundworks
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Reviewed in March 2023
We had HVAC install and cleaning just over all professional company and would recommend them to anyone and everybody.
Buckle's HVAC Solutions
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Reviewed in March 2023
Anthony Lamore and Nate were great customer service. Quality work and fast. I am very happy with the end result
River Valley Remodelers, LLC
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Reviewed in January 2023
Anthony and his crew they did a great job. They are a good workers and no other any question about it.
River Valley Remodelers, LLC
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Reviewed in December 2022
Very prompt, professional and over 1/2 less expensive than my estimate from another company
Ultimate Outdoor Bros
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Reviewed in December 2022
Lost water Sunday morning. Bastian answered the phone, came on time on a Sunday and replaced the well pump in an hour. Highly recommend their service.
Bastian Well Service Inc.
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Reviewed in July 2022
Having basement floor tiles removed was a great experience with JMax Specialty Contracting. John went above and beyond what I expected. He knew what my next project was, so removed the other obstacles that needed being taken care of. I was so relieved to see that he had done those without...
JMAX Specialty Contracting, Inc.
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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.

No, but it’s common that they do. Gravity furnaces weren’t terribly efficient so wrapping either the ductwork in asbestos, the furnace itself, or both, was something done regularly. This allowed the system to retain more heat. At the time, this greatly enhanced the efficiency of the furnaces but it wasn’t until later that we became aware of just how carcinogenic and dangerous asbestos could be.

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.

Federal law doesn’t require homeowners to disclose the presence of asbestos in their home, but some states and local municipalities may require it. That is why it’s important to test an older home for asbestos and other health hazards before moving forward with a sale.

No, an N95 mask will not protect against asbestos and many other hazardous materials, such as carbon monoxide, gas, chemical vapors, and other gases. You will need a respirator specifically designed to protect against asbestos. However, if you suspect asbestos is present in your home, hire an asbestos abatement professional immediately and avoid the area until they arrive for the inspection.

The Caledonia, MN 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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