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Find Radon gas testers in San Antonio

MAC Environmental, LLC
5.0(
1
)

Serving San Antonio, TX and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

At MAC Environmental LLC we pride ourselves on being the best testing company in the area.\n\nWe've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.\n\nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

Response time12 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for The Radon Boss LLC
The Radon Boss LLC
New to Angi

Serving San Antonio, TX and surrounding areas

Approved

In business since 2016

Credit card accepted

Offers commercial services

I bring over a decade of PM development and construction experience combined with a passion for environmental health and safety to every home and multi-family community we serve. My background in construction to underground civil design and final inspections have equipped me with the expertise needed to deliver highly effective radon design, testing, & mitigation services. My commitment to accurate and reliable results have allowed me to make informed recommendations that prioritize client safety without compromising ownership's profitability. \n\nI'm dedicated to making the radon testing and mitigations processes efficient and straightforward. With a positive attitude and a commitment to exceptional service, I work tirelessly to deliver radon system designs, radon levels, and recommendations in final reports with industry-leading turnaround times. \n\nI look forward to continuing to raise awareness about radon safety and helping protect our communities from this invisible threat.

Response time1 day
10 neighbors recently requested a quote
Avatar for LoneStar Mold Testing
LoneStar Mold Testing
4.9(
105
)

Serving San Antonio, TX and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Lance was very professional and informative! He was very quick to fit us in to his schedule to test for toxic mold! He got the test results back quickly and gave us his recommendations within 24 hours! I highly recommend LoneStar Mold Testing."
Apartment Complex College
Apartment Complex College
Water damage floors
Mold growth on drywall
Home for sale

+22

Response time2 hrs
Response rate85%
Recommended by95%of homeowners
Avatar for Clear Environmental
Clear Environmental
4.2(
15
)

Serving San Antonio, TX and surrounding areas

In business since 2013

Free estimates

Warranties offered

"These guys are true professionals and true to their word. They did exceptional work and exactly what I asked of them. I would truly do business with this company again!"
Abatement
Abatement
Abatement
Abatement
Abatement

+7

Response time1 day
Recommended by91%of homeowners
Avatar for Hayden Restoration LLC
Hayden Restoration LLC
5.0(
7
)

Serving San Antonio, TX and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"Brenton Hayden was punctual, courteous and professional. He addressed my HVAC mold concerns, offered affordable solutions and explained mitigation processes (step taken) … “Best Seen to Date!” After 10 years in our forever custom home, we’ve had all the major San Antonio companies service our HVAC system—Brenton OUTSHINED All of his Competitors! R/Mark Marson, USAF, Command Chief (Ret.)"
Mold Remediation Project
Mold Remediation Project
Mold Remediation Project
Mold Remediation Project
Mold Remediation Project

+5

Response time11 hrs
Recommended by85%of homeowners
FAQs for radon gas testing projects in San Antonio, TX

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The San Antonio, TX homeowners’ guide to radon gas testings

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