Do I need to be worried about asbestos?

• <div><p>If your home was built before 1989 and still has original vinyl, there’s a high probability of asbestos mixed into the old flooring, which can harm you and your family if it’s disturbed from removal. If you suspect that you have asbestos, you’ll want to call in <a href="https://www.angi.com/nearme/asbestos-abatement/">an asbestos removal expert</a> to evaluate the situation. </p></div>

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Verified Reviews for Percolation Testing pros in El Cerrito, CA

*The Angi rating for Percolation Testing companies in El Cerrito, 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 El Cerrito, 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 November 19, 2025

Reviewed in November 2025
I was very happy with my experience- I had an inspection done and both Sophia and La Quisha were very thorough in their inspection and talking through potential explanations and options. They put me at ease!
Sophie's Pest Solutions
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Reviewed in July 2020
Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or...
Oak Plumbing Inc
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Reviewed in June 2017
The test was simple and I was impressed with how quickly I received the results. Would recommend.
Tap Score, Powered by SimpleWater
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Reviewed in May 2017
Done in one day, at a reasonable cost. A test of efficiency is performed afterward by a separate company, and the tester said they did a quality job. We are very, very happy with the result.
Moore Mechanical Heating & Air Conditioning
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Reviewed in May 2017
I went on to Angie's List looking for mold remediation. I found this company and they came out and tested for mold. I worked with JC, she used some machines and tested the spore levels for mold. It was very high because there was no ventilation in the bathroom. She recommended some mold...
Certified-Environmental
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Reviewed in October 2016
Smoothly. It was several hours of work by Randy, and the result is a fully functioning fireplace. We are delighted with the result and very appreciative of Kidd Fireplace's action to find and implement a definitive and successful solution. As well, the new fireplace passes the cat test. No more...
Kidd Fireplace & Spa
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Reviewed in September 2016
Testing was complete and results within a few days.
A1 Certified Environmental
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Reviewed in June 2014
They were thorough and professional. Unfortunately, they were not able to take infared photos of the house as they often do to show the range in temperatures but had another way to complete the testing. I have hired them to do the suggested upgrades and will write a review on that portion of the...
Advanced Home Energy
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Reviewed in February 2013
My 1945 toilet was "running"; when I opened the tank, I discovered that the water valve was continuously spraying a small mist. I know homeowners can repair this relatively minor problem, but I am elderly and my husband had been working a 9 day shift. I decided to call a plumber to save him...
The Lunt Marymor Company
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Reviewed in October 2008
The process was mostly smooth, however, there were a few odd miscommunication along the way. The estimator insisted on providing sample paints for us to test. When I asked for some sample paint, the owner of the company complained about the cost, stating each sample would cost him $15! I went to...
CertaPro Painters of Berkeley
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Percolation Tests questions, answered by experts

Vermiculite insulation that comes from a particular mine before 1990 is likely to contain asbestos. This is particularly true in the U.S. However, not all types of vermiculite insulation contain asbestos. Since you can't detect the presence of asbestos without special equipment, it's best to assume that the insulation contains the dangerous mineral and to either leave it alone or hire a professional to handle it.

Asbestos is absolutely cancerous. In fact, around 4% of all lung cancer cases are the result of asbestos exposure. This is why we recommend a full, professional removal and cleaning of any asbestos found in your home. If you are unsure whether there is any present, you should call a pro who will inspect your property.

Asbestos was commonly used in cloth wiring, but not all types of cloth wiring contain it. The age, condition, and appearance of the wiring can provide clues as to whether asbestos is present or not, but the only way to know for sure if the wiring has asbestos is to have it tested.

If your home was built before 1989 and still has original vinyl, there’s a high probability of asbestos mixed into the old flooring, which can harm you and your family if it’s disturbed from removal. If you suspect that you have asbestos, you’ll want to call in an asbestos removal expert to evaluate the situation.

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.

The El Cerrito, 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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Alison Kasch
•
Jul 10, 2026Jul 10, 2026
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•
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How Much Does Soil Testing Cost? [2026 Data]
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•
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What Is a Perc Test for Septic Systems and Why Is It Necessary?
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•
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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.
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•
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.