Get matched with top percolation testing pros in Shaver Lake, CA

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: What are the common signs that asbestos is present in a property?

• <div><p>Often found in old insulation, tiles, and roofing materials in pre-1980s buildings.</p></div>

Q: Can I conduct asbestos testing myself, or should I hire a professional?

• <div><p>Professional testing is advisable to ensure safety regulations are met, and accurate results are obtained using certified methods.</p></div>

Q: Does knob and tube wiring have asbestos?

• <div><p>Knob and tube wiring is an older type of electrical wiring that's no longer used and <a href="https://www.angi.com/articles/knob-and-tube-electrical-wiring-safe.htm">generally not considered safe</a>. 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.</p></div>

Q: Does all cloth wiring contain asbestos?

• <div><p>Asbestos was commonly used in cloth wiring, but not all types of cloth wiring contain it. The age, condition, and appearance of the wiring can provide clues as to whether asbestos is present or not, but the only way to know for sure if the wiring has asbestos is to have it tested.</p></div>

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Verified Reviews for Percolation Testing pros in Shaver Lake, CA

*The Angi rating for Percolation Testing companies in Shaver Lake, CA 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 Shaver Lake, CA 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 May 18, 2026

Reviewed in May 2026
Normally Angi’s isn’t very reliable but Mendoza was very good, on time, and thorough.
Mendoza Tree Service, Inc.
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Reviewed in October 2025
Yardgnome services is awesome. They are professional, they go above and beyond with their services, they are hard working and attentive to the customers needs. They are a fantastic company with excellent customer care services.
Yardgnome Services
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Reviewed in December 2024
We just hired him for lawn maintenance. He seems great. I have not seen his work yet.
Santiago's Lawn Maintenance- Unlicensed Contractor
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Reviewed in November 2024
Crown did a great job repairing my roof that was damaged by snow and ice!
Crown Roofing and Coatings
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Reviewed in October 2024
They were on time. Friendly , cost was great for the value. I will have them come again
D & R Construction
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Reviewed in August 2023
Andrew came and was nervous at first to get up on the steep roof at first. He how ever didn't give up and was up and down the roof multiple times replacing screws approx 250. He also removed a few branches on a tree that were touching the roof. He spent most of the morning working for us. I will...
Waterproof Roofing LLC
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Reviewed in May 2023
They are very flexible. They have done numerous projects for us and have always been able to meet our time lines. We continue to use them for janitorial needs.
RamosWorks, Inc.
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Reviewed in March 2023
Tim Seeley and his crew did an awesome job painting the interior of our home. We are very happy with the results. We highly recommend his painting service.
Seeley's Quality Painting
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Reviewed in August 2022
Tommyâ s crew is exceptional and pays attention to detail. I couldnâ t be happier with the job they did and Tommy kept me up to date during the job on our summer cabin. The cleanup was perfect - not one drop of paint where it wasnâ t supposed to be and all cracks and corners painted...
Tommy's Paint Company
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Reviewed in August 2022
The weâ re on time, did the job very professionally, cleaned up there mess and called back to make sure the work was complete and done correct to my expectations
Keyes Drywall & Painting
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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.

Often found in old insulation, tiles, and roofing materials in pre-1980s buildings.

Professional testing is advisable to ensure safety regulations are met, and accurate results are obtained using certified methods.

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.

Asbestos was commonly used in cloth wiring, but not all types of cloth wiring contain it. The age, condition, and appearance of the wiring can provide clues as to whether asbestos is present or not, but the only way to know for sure if the wiring has asbestos is to have it tested.

The Shaver Lake, 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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