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Find Radon gas abatement pros in San Francisco

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.5(
5
)

Serving San Francisco, CA and surrounding areas

Angi Approved

In business since 1986

Free estimates

Customers say: Quick response

"I do not recommend MG remediation to anyone looking for a reliable and conscionable contractor. Carlos and his team not only took about 3 additional weeks to complete ceiling paint, the paint they did was nowhere close to acceptable and they created damage to our house along the way. When confronted with the imperfect paint, they blamed the imperfections on the way our ceilings were built. When confronted about the extra delays (keeping in mind that the last week or so on the job they started coming only few hours to work as if our project was kind of a hobby of theirs that they show up to during their free time taking no consideration to the fact that we told them multiple times that we currently are homeless and they already exceeded the timeframe they provided us with), they blamed me and my husband for â rushingâ them which led to imperfect paint and delays. Due to the damages to the walls that they created, we had to hire other painters to paint the entire house. They also scratched and created dents in our new floors and in multiple rooms. Their excuse around that is that they usually come to a house and complete their work first which is bound to create damage and then the rest of the contractors come in. They basically take the contract signed as an excuse and cover to create all the damage they please in your house. On top of all that, the communication was very poor all along although we were promised daily updates and pictures. For all these reasons above, I cannot recommend MGM to anyone."
Vapor Intrusion for VOC and Radon
 Cleaning
 Cleaning
Testing
Testing & Abatement

+4

Response time4 days
2 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Dry Down Inc
Dry Down Inc
4.8(
61
)

Serving San Francisco, CA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Angel did an amazing job pumping out over 6,000 gallons of water from under our house! Diego came out very quickly to initially assess the damage and then Angel and his team started pumping the water out just a few hours later. They worked hard from 8pm to 2am! Angel was so kind, professional, and helpful throughout the whole process! He responded to all my texts so quickly and communicated with the office for me to get all the documentation that my insurance needed. He even followed up to make sure I had everything I needed. Angel came back multiple times to check on our house and make sure everything was drying properly and that there wasn't any further damage. He left the fans under our house for over an extra week for no additional charge to make sure it was completely dry. Angel was awesome and offered the best customer service!"
Recommended by91%of homeowners
Avatar for Wall Inspections
Wall Inspections
5.0(
5
)

Serving San Francisco, CA and surrounding areas

In business since 2012

Free estimates

Emergency services offered

Wall 2 Wall Property Inspections provides residential and commercial property inspections in San Jose, CA and the surrounding areas. We are strive to provide home buyers and sellers with information about real estate property in order to make them feel comfortable with their final decision. Schedule an inspection online or call us at (408) 905-9255 today.

Recommended by100%of homeowners
Buyers Protection Group (BPG)
3.5(
85
)

Serving San Francisco, CA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"BPG Inspections Failed to Honor Their Guarantee or Take Accountability Summary: In my experience, BPG Inspections failed to uphold their guarantee, and I encountered poor follow-up and vague, shifting justifications for denying my claim. Details: I hired BPG Inspections in Pensacola, FL, to inspect a home I purchased in April. The inspection occurred in March, and I moved in during May. Within a few days of moving in – well within the 90-day warranty period – I discovered two issues that the inspection report had explicitly marked as functional: 1. The garbage disposal unit did not work (it made a soft noise but did not function). 2. The HVAC system failed to deliver air to the kitchen and adjacent bedroom, though the inspection report had indicated the air handling was operational and in good condition. I promptly emailed BPG about these problems, and while the inspector initially responded, I was then passed to their claims department. After repeated follow-ups, I finally received a call on June 23rd – nearly a month after reporting the issue – only to be told that neither issue was covered under their warranty. I raised the following concerns: 1. For the HVAC, the inspector had confirmed it was functional in an email, contradicting the claims department's later justification that it could not be tested. If no air reaches two rooms, it should have been evident during either heating or cooling tests – this was missed. 2. For the garbage disposal, I was told it was a "kitchen appliance" and therefore not covered, despite it being a fixture included in inspections. When I asked where the warranty excluded it, I received inconsistent explanations. At no point did the company offer to re-inspect or further investigate these issues. I expected more accountability from a professional inspection service – especially one offering a guarantee."
Recommended by61%of homeowners
Avatar for P W Stephens Environmental Inc
P W Stephens Environmental Inc
4.3(
23
)

Serving San Francisco, CA and surrounding areas

In business since 1982

Free estimates

Emergency services offered

"This company was hired by my home insurance as a subcontractor and gets paid directly by the insurance.  And yet, they filed a frivolous mechanics lien against my property only a month after the work, without providing any prior preliminary notice.  This is after I received a letter from the insurance company stating that everything was paid in full.  Instead of checking up with the insurance company for any discrepancies or contacting me to discuss the matter further, they just jump right into filing a frivolous and invalid lien.  Looks like this is what this company usually does to the homeowners after just one billing cycle based on other reviews online.  This is their go-to billing method.  Unconscionable and unethical!  I will have to hire a lawyer to look into their unusual billing tactics.  Not only that, they left my window frames damaged, and left a sharp metal spike sticking out on my bedroom carpet.  I could have gotten seriously injured if I stepped on it.  They also left items damaged from the demolition, which needed to be hauled away, with sharp nails sticking out, right in my bedroom.  The gentleman who came out to do the initial evaluation was nice, but other employees seemed unhappy.  Terrible company!"
Recommended by73%of homeowners
Avatar for Gentle Giants Gardening
Gentle Giants Gardening
5.0(
1
)

Serving San Francisco, CA and surrounding areas

In business since 2008

Free estimates

Warranties offered

6 full time employees, horticultural students hired as laborers and a carpenter/foreman with over 15 years experience. No sub-contracting, bid projects only, time and materials for garden maintenance. Fun crew, highly motivated and personally trained.

Recommended by100%of homeowners
Avatar for Valex Construction
Valex Construction
5.0(
1
)

Serving San Francisco, CA and surrounding areas

In business since 2000

Free estimates

Warranties offered

Established in 2000\nWe are a family owned and operated construction company that is located in San Francisco, California. We have over 25 years experience in the construction industry and have worked on many residential projects in San Francisco and surrounding Bay Area. All the services that we provide are done with the utmost integrity, honesty and quality. From simple remodeling to new house construction, we can do it all! Because we are a family operated company we are able to provide all our attention and focus on our customers, plus offer much more competitive prices. Our estimates are always fast and FREE, so what do you have to lose?

Recommended by100%of homeowners
Avatar for 3 Step Restoration
3 Step Restoration
New to Angi

Serving San Francisco, CA and surrounding areas

Free estimates

Emergency services offered

Warranties offered

Here at 3 Step Restoration we specialize in mold removal/remediation and water damage losses. All of our certified technicians are detailed oriented and are pushed to providing you the best service. This is a new company owned by a certified professional with years of experience.

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FAQs for radon gas abatement projects in San Francisco, CA

The only way to know whether your home or water supply contains radon is to schedule a professional test. A qualified radon inspector will collect samples, deliver lab-verified results, and explain the findings for $150 to $800. Once you know your exact levels, you and your radon mitigation pro can choose the right system and tackle the problem before it affects your family’s health.

Both roles tackle radon, but they focus on different steps. Inspectors test your home, interpret the results, and determine whether levels exceed EPA guidelines. Mitigation pros design and install the system that lowers those levels. Some companies do both, but the skills and equipment differ, so always verify that the person you hire is properly certified for the specific service you need.

Installing a mitigation unit fixes radon problems by reducing indoor gas levels to established safe standards. A system designed and installed by a mitigation expert, tailored to your home's specific layout and foundation, guarantees effective radon reduction. This expert installation ensures consistent performance over time while safeguarding your indoor air quality.

Open windows and doors do not reduce radon levels because they trigger a pressure imbalance that draws radon-laden air into your home. This practice fails to control radon concentration and can even worsen the issue. An active suction mitigation system provides a proven, safe, and effective solution to reliably reduce radon levels.

Radon mitigation systems generally last between 10 and 30 years, depending on system type and maintenance. Passive systems endure the longest because they have no moving parts, whereas active systems, which use a fan, require fan replacement every 5 to 10 years. System components, such as PVC pipes, seals, and fittings, can remain effective for decades when paired with periodic inspections and proper maintenance.

Radon mitigation systems consume between 300 and 3,000 kWh of electricity per year, depending on fan size and system design. On average, an active radon fan draws 100 to 300 watts continuously, which translates to roughly 876 kWh annually, and adds $30 to $300 to your energy bill each year. Choosing a high-efficiency fan and ensuring tight sealing around pipes helps minimize these ongoing costs.

The San Francisco, CA homeowners’ guide to radon gas abatements

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