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TRUSTED BY ALTADENA, CA HOMEOWNERS

4.6
Average homeowner rating
1.3k+
Verified percolation testing services reviews

Verified Reviews for Percolation Testing pros in Altadena, CA

*The Angi rating for Percolation Testing companies in Altadena, 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 Altadena, 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 October 13, 2025

Reviewed in October 2025
Paul Davis Company and Staff went above-and-beyond when I was dealing with a Mold issue on a Property! I received an over-the-top (in My opinion) 5-figure quote from another company. I thought it strange that this company also did the lab testing. It was My understanding that a 3rd party Lab...
Paul Davis Restoration of San Fernando Valley, CA
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Reviewed in September 2025
Pool looks amazing! I couldn't ask for anything more. Chemicals tested weekly, pool inspected and thoroughly cleaned each week.
Pool Care Services
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Reviewed in July 2019
I didn't compare costs so no way to evaluate that. I forgot to have an asbestos test done, he nicely came back and tested for that ,took it to the lab and called back by the next day with the results . He is a very nice man and makes you feel really comfortable. Thanks, Bobby!
Lakeshore Inspections
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Reviewed in February 2019
Only test for mold I wanted more comprehensive
Sunrise Inspections
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Reviewed in October 2017
Mike was extremely courteous and thorough with his testing. He explained how the testing device worked and the readings it produced.
Kurtis Environmental
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Reviewed in August 2016
David from HERS RATER LA was immediately responsive when contacted, and was able to schedule given the short notice, a certification appointment within the week, which was critical since there was a pending inspection from the city inspector the week after. <br /> <br /> Prior to the...
HERS Rater LA/HouseSmart Green Solutions
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Reviewed in March 2016
They were on time. They knew what they were doing. The test came back within 24 hours. They conducted the test professionally. The test came back negative, even though another company claimed it was positive.
Home Biotesting
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Reviewed in July 2015
I used Marble and Stonelife because of favorable Angie's List reviews and was not disappointed. Chris Chai is really into stone. It shows in the pride he takes in his work. Chris and his helper cleaned, polished and resealed our granite kitchen counters, replaced the caulking that was done...
Marble & Stonelife
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Reviewed in April 2014
I contacted Frank Najafi regarding asbestos and lead paint samples/analysis I wanted done, before we began remodeling a 1931 house we had recently purchased. Frank answered the phone right away and explained his services in detail over the phone, and made recommendations as to what type of...
PropertyHealth, Inc.
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Reviewed in February 2014
We had a plumbing leak from the unit above our unit. The water leaked through our ceiling and down our bathroom wall. Smelling a musty odor, we were worried there might be a mold problem that may be hazardous to our health. I called the company and an appointment was set for the next day. Mr....
Same Day Mold Testing Inc
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Percolation Tests questions, answered by experts

Regulations require certified professionals for removals and disposal in compliance with local and federal guidelines, ensuring safety and legality.

Older textures may contain asbestos, requiring careful handling and professional inspection before work begins to ensure safety compliance.

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 has many beneficial properties, including fire resistance, strength, and chemical resistance. It is also an excellent insulator, which is why it was used in pipe insulation and other building materials for decades. For all its benefits, asbestos is dangerous for human health, which is why it was eventually banned from use in certain products.

If asbestos is found, it is crucial to consult with a professional. They will provide recommendations for appropriate abatement actions, which may include safe removal, containment, sealing, or enclosure. All actions must be planned and executed in accordance with local regulations for handling asbestos.

The Altadena, 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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