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*The Angi rating for Percolation Testing companies in Charleston, SC 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 Charleston, SC 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 March 03, 2025

Top-Rated Percolation testing pros in Charleston - Updated Nov 2026

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Percolation Tests FAQs, answered by experts
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Answered by
Angi Expert

The most common sign of asbestos is the age of your home. Asbestos was banned in drywall in 1977, though many products still contained asbestos until the 1980s. Indicators of possible asbestos in your home include:

  • Your home's age, if built before 1980

  • You have a home with vinyl flooring or millboard that was installed between 1952 and 1982

  • Your home has corrugated roofing

  • Your home has walls made from cement sheets

  • Your home has vermiculite insulation 

Helpful?
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Answered by
James M.
on Feb 12, 2025

Asbestos was commonly used in construction before the 1980s. While homes built after that time are unlikely to contain asbestos, there is still a possibility. Asbestos was found in materials such as flooring, drywall/joint compound, ceiling textures (like popcorn ceilings), roofing, siding, felts, HVAC systems, and more. If you're concerned about asbestos in your home, it's important to consult with an experienced asbestos professional to assess the likelihood of its presence.

High Tide Environmental Charleston, SC
Helpful?

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.

It can be safe to live in a house with asbestos as long as the asbestos-containing materials are intact, in good condition, and not disturbed. Asbestos becomes dangerous only when its fibers are released into the air, which happens if the material is damaged, crumbling, or disturbed during renovation work. If you suspect asbestos is present, do not disturb it. Instead of removal, materials in good condition can sometimes be encapsulated. It is recommended to have regular professional inspections to monitor the condition of the asbestos and prevent health risks from potential exposure.

Many homeowners may never have to test their homes for asbestos. Asbestos particles are only dangerous if they become airborne. If you plan to do construction or notice damage to piping, siding, or drywall, you should hire a specialist to test for asbestos. 

If you plan to remodel your home or have any concerns, you should have your home tested for asbestos just to be safe.

Asbestos-containing materials are not easily affected by water and do not disintegrate or dissolve when exposed to it. However, porous materials can deteriorate due to water exposure, leading to the release of asbestos fibers into the air. The settling of asbestos fibers can also occur as water makes them heavy, which reduces the risk of airborne exposure, though future disturbance of the materials could cause risk. Wetting asbestos-containing materials does not constitute safe removal, and the proper handling and disposal of asbestos materials should be left to professionals.

The Charleston, SC homeowners’ guide to percolation testing services

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