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TRUSTED BY LOS ALTOS, CA HOMEOWNERS

4.4
Average homeowner rating
1.4k+
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Verified Reviews for Percolation Testing pros in Los Altos, CA

*The Angi rating for Percolation Testing companies in Los Altos, 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 Los Altos, 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 April 21, 2023

Reviewed in April 2023
I would give 0 star, if I can. The manager of this office, Mark Wright, handled my case. I simply only need an annual backflow test. The test failed the first time. I want to understand what is broken before paying more to repair. Mark can't explain clearly in the email or phone call what is...
Master Plumbing
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Reviewed in January 2022
Charles performed tests and investigated where a mold smell was coming from in our house. He spent a good amount of time educating us and talking with us. He took pictures and samples and will supply a written report. He was very thorough and professional.
ACR Environmental Consultants
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Reviewed in March 2021
My son was struggling with Math in the middle school. A friend recommended J since her son got excellent result from J's tutoring service. J quickly uncovered and addressed the fundamental limitations and offered a unique tutoring approach that was tailored to my son's learning requirement. As a...
studyBuddyJ.com
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Reviewed in April 2020
I hired PHRR for mold testing and removal in a single family home. I am overall quite pleased with the service and would be happy to hire them again. They performed all work in the expected timeframe, and were very accommodating in working around our difficult schedule.
Professional House Repair Restoration
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Reviewed in February 2020
The test results came a bit later than previously said. But they were responsive to my question and were on time to take samples.
My Pure Environment Santa Clara
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Reviewed in January 2020
I would highly recommend this company to anyone looking for testing and the removal process! Super nice and explained the process very clearly!
Mold Test Company Central CA
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Reviewed in March 2018
Doug cleared our clogged pipe; continued to test to make sure it remained clear, and left the bathroom cleaner then when he arrived. Great customer service.
Drain Service Techinician - Unlicensed Contractor
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Reviewed in February 2016
All our contact with Synergy was positive. They were responsive to our inquiry, promptly came out to provide a written estimate, and flexible about scheduling when we called back 3 weeks later (after comparing their price with other providers.) <br /> The crew that did the work was...
Synergy Co
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Percolation Tests questions, answered by experts

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

Since the EPA partially banned asbestos in 1989, it is no longer used to manufacture new siding in the United States; production had largely ceased by the early 1980s. Many other countries, such as Canada, Iceland, and Denmark, also have bans on asbestos. However, asbestos siding is still present in many homes built before the late 1980s. The only definitive way to know if your siding contains asbestos is to have it professionally lab-tested.

In the 1980s, the use of asbestos in house siding materials underwent a significant decline, ultimately being phased out by the mid-1980s to early 1990s. This change was largely due to a growing awareness of the severe health risks associated with asbestos exposure, particularly its link to lung diseases and cancers. With increased public concern and regulatory agency involvement, building codes and regulations were updated to restrict the use of asbestos in construction materials.

Federal law doesn’t require homeowners to disclose the presence of asbestos in their home, but some states and local municipalities may require it. That is why it’s important to test an older home for asbestos and other health hazards before moving forward with a sale.

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

The Los Altos, 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

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•
Apr 4, 2026Apr 4, 2026
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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.
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May 2, 2026May 2, 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.
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Apr 4, 2026Apr 4, 2026
Who Does a Perc Test?
Getting the right pro for your perc test is crucial for getting legal approval for your project. Learn who does perc tests to ensure an official result.