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Top-Rated Radon detection and reduction specialists in El Sobrante - Updated Nov 2026

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.3(
8
)
Radon Gas - Abatement

Serving El Sobrante, CA and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"Peter and his team at MG Remediation are professionals. They did everything they told me they would do and the radon levels dropped significantly. Great communication, too, which always matters."
Vapor Intrusion for VOC and Radon
 Cleaning
 Cleaning
Testing
Testing & Abatement

+4

Response time4 days
Recommended by80%of homeowners
Curtis Roberts Mold Inspection
4.5(
175
)
Radon Gas - Testing

Serving El Sobrante, CA and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"Curtis was quick to respond, showed up the next day on time, and was in and out in very little time. I even got my results the same day which was amazing. This is a rental property I had him test, and as they say, time is money. And having the testing & results that quickly with a letter stating it was clear of mold to cover me legally was exactly what I needed."
Under Kitchen Sink
Bathroom Cabinet
Response time3 hrs
Recommended by95%of homeowners
Avatar for Standish Inspections
Standish Inspections
4.8(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving El Sobrante, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"I had recently had my home inspected and was concerned about mold and what to do about it. I called Mr Standish because I had just used him for my home inspection, and he was again able to do the mold testing right away, and got back the results to me within a few days. It was helpful to have him answer questions about the test results, and the problem was minor, and something that did not require any major work(thank goodness!)Mr Standish is very knowledgeable about his work, and is honest, which I truely appreciate."
Shingles
Gutters
Roofing
Recommended by100%of homeowners
Avatar for Fire & Water Damage Recovery
Fire & Water Damage Recovery
4.7(
69
)
Radon Gas - Testing

Serving El Sobrante, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"Look, you're not calling a company like FWDR because something happy has happened... Our refrigerator flooded our kitchen - exposing a small, long-term leak that had slowly destroyed our cabinets, drywall, and floors without for years our knowledge. We now had ourselves a water damage AND a mold problem and had no idea where to start. We were lost and stressed and didn't know who to call. I did a quick search and found FWDR because of all of their amazing Yelp reviews. One call to FWDR turned a stressful situation into a manageable project with knowledgeable support all along the way. Javier was always able to quickly and patiently answer my questions (and I had a lot of questions), he referred us to several companies to deal with prerequisite issues (asbestos and lead testing and removal), and it felt like he was there to walk us through the whole process. I can't tell you how much I appreciate the patience and consideration Javier, Santos, and Margarita showed every step of the way. They worked with the other vendors and my insurance directly to make sure that no time was wasted between services from different companies, the work was quick and thorough (proof received through testing), and every consideration was given to my family with two toddlers and small home during a pandemic - they did their very best to work around us and our day to day needs. I can't thank them or recommend them enough. Attentive, detailed, courteous, patient, thorough, and going well above and beyond in customer service - you really can't ask for more from a company you never really want to have to call in the first place!"
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+27

Recommended by88%of homeowners
Bay Works Tile & Stone
3.4(
31
)
Radon Gas - AbatementRadon Gas - Testing

Serving El Sobrante, CA and surrounding areas

In business since 2005

Free estimates

Credit card accepted

Bay Works Tile & Stone is a professional installation company of all Natural Stone & Tile products including granite, marble, tile, ceramic, porcelain, glass & masonary materials. We have over 20 years of combined work experience in the industry. All of our projects are personally supervised by the owner of the company for a personalized experience that will be guaranteed to exceed all expectations. We provide design and material consultation through our dedicated team of suppliers and vendors. Our services include custom granite kitchen counter tops, fireplaces, vanity tops, shower surrounds, tile floors, back splashes, outdoor BBQs, Stone Veneer, Removal of existing materials and plumbing. Our fabrication facility is centrally located in Union City, however our geographic coverage extends from Orinda to Pleasanton and from San Francisco to San Jose. Our standard turn around time for most projects is 5-7 business days from begining to end. We have an excellent customer service rating of 4.85/5 from all of our customers. All of our installers are full time employees, we do not use subcontractors to do our work. Our license number is 909484.\n\nWe offer free in-home estimates. Also, we are offering a free stainless steel sink with any counter top purchase and a 15% discount on any tile installation. Refers all plumbing work to licensed subcontractors.

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+48

Recommended by70%of homeowners
Radon Detection and Reduction FAQs, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

The El Sobrante, CA homeowners’ guide to radon detection and reduction services

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