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TRUSTED BY PASADENA, CA HOMEOWNERS

4.6
Average homeowner rating
2k+
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Verified Reviews for Percolation Testing pros in Pasadena, CA

*The Angi rating for Percolation Testing companies in Pasadena, 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 Pasadena, 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 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 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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Reviewed in January 2012
We found Michael McPherson and his team's work excellent and we plan on using him again to repair and resurface our 50 year old original cork floors. On this job, extending and restaining parquet floors, there were several difficult and unexpected problems to solve. None involved the precision...
Bamboo 2000 / McPherson Hardwood
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Reviewed in July 2011
I am so lucky to have found Frank! He is the consummate professional AND educator. The home that we are buying has popcorn ceilings in most areas and we were afraid it contained asbestos. We wanted to get it tested first to see if we needed to negotiate with the seller on taking care of the...
PropertyHealth, Inc.
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Percolation Tests questions, answered by experts

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

There are products that still contain asbestos, but they were typically installed decades ago. Common places where you may still find asbestos-containing materials are in siding, wrapped around ductwork, in older appliances (i.e., stove and gravity furnaces), and in floors. Asbestos was primarily used as an insulator, so anywhere in an older home where you lose heat is where you will most likely find asbestos.

Asbestos is a carcinogen, meaning it increases the risk of cancer. Inhaling asbestos fibers is linked to several respiratory issues, including asbestosis, or scarring on the lungs, lung cancer, and mesothelioma, another type of cancer. There's also a link between asbestos exposure and an increased risk of colon cancer and other cancers of the digestive system.

Usually, the people most at risk for disease related to asbestos exposure are those who spend a lot of time working around the material without protection. Electricians who work with asbestos wire have a higher risk of developing mesothelioma or lung cancer due to their exposure.

Bathroom tiles can contain asbestos, just the same as patio tiles or kitchen tiles. Remember that asbestos was used primarily for its insulative and fire-resistant properties, both of which are desired in a house. Before we knew asbestos caused cancers and other diseases, it made a lot of sense to include it in many different building materials, including bathroom tiles.

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

The Pasadena, CA homeowners’ guide to percolation testing services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Alison Kasch
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Jul 10, 2026Jul 10, 2026
How Much Does a Perc Test Cost? [2026 Data]
Most building projects and septic installations require soil testing to ensure proper drainage. Learn how much a perc test costs and what affects costs.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
How Much Does Soil Testing Cost? [2026 Data]
Find out how much a soil test costs and what you get for your money with our expert guide. Know what to budget for different types of soil tests.
Mitchell Grant
•
Jul 9, 2026Jul 9, 2026
What Is a Perc Test for Septic Systems and Why Is It Necessary?
A perc test for septic analyzes the absorption rate of the soil where a tank is going to be installed. Learn more about the test, cost, and passing grades.
Kate Fann
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Jul 9, 2026Jul 9, 2026
How to Test a Septic Drain Field’s Effectiveness
Learn how to test a septic drain field to ensure it’s functioning properly before encountering costly issues.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
When Is the Best Time to Do a Perc Test?
Not sure about the best time to do a perc test? Learn about factors that affect results and test costs to choose the ideal timing for your project.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
Soil Test vs. Perc Test: Which Do You Need?
Not sure what kind of testing you need for your land? Learn about the differences between a soil test vs. a perc test and when to order each of them.