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*The Angi rating for Percolation Testing companies in Hanover, NH 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 Hanover, NH 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 August 20, 2025

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Percolation Tests questions, answered by experts

DIY kits are available, but professional testing ensures accurate results and compliance with regulations.

If you own a stereo microscope, you should be able to see the fibers. The stereo microscope often can perform magnification up to 50x. But unless you have experience viewing asbestos fibers, you may not know exactly what you are seeing. Some fibers are curly, while others are long and straight. Blue, brown, white, and gray colored fibers are all possible.

Typical methods for asbestos removal include encapsulation, enclosure, and complete removal.

Asbestos fibers can stay airborne for 48 to 72 hours, depending on the home's ventilation. Fibers can linger longer in enclosed spaces with poor airflow. Because the fibers are microscopic, they can easily remain suspended, making them difficult to detect without professional equipment.

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 Hanover, NH 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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