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Find Radon gas testers in San Antonio

Avatar for A&J Enterprise

A&J Enterprise

5.00(
2
)
Approved Pro

A&J Enterprise

5.00(
2
)
Approved Pro
Customers say: Quick response
15 years of experience
Free onsite estimate

A&J Enterprise is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. A&J Enterprise is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"great job"

LaJoyce C on November 2022

A&J Enterprise is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. A&J Enterprise is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"great job"

LaJoyce C on November 2022


Avatar for The Radon Boss LLC

The Radon Boss LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

The Radon Boss LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
15 local quotes requested
9 years of experience

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. I'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. I look forward to continuing to raise awareness about radon safety and helping protect our communities from this invisible threat.

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. I'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. I look forward to continuing to raise awareness about radon safety and helping protect our communities from this invisible threat.


MAC Environmental, LLC

5.00(
1
)
Approved Pro

MAC Environmental, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

At MAC Environmental LLC we pride ourselves on being the best testing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being 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!

"5 stars"

Avis L on December 2024

At MAC Environmental LLC we pride ourselves on being the best testing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being 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!

"5 stars"

Avis L on December 2024


Avatar for GreenWorks Inspections & Engineering

GreenWorks Inspections & Engineering

4.67(
57
)
Approved Pro

GreenWorks Inspections & Engineering

4.67(
57
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
146 local quotes requested

At GreenWorks, we know that buying, building, or investing in property is one of the biggest decisions of your life. You deserve absolute peace of mind and confidence in your investment. That’s why we’ve built the nation’s largest privately owned, non-franchise inspection and engineering company—serving with unmatched quality, speed, and care. Unlike most inspectors who only point out problems, GreenWorks provides clear answers, proactive solutions, and cost transparency. Every inspection includes a detailed walkthrough, a comprehensive report with photos, and a free repair estimator so you know exactly what deficiencies mean and how much they will cost to fix. From foundation mapping, plumbing, and HVAC checks to mold, asbestos, radon, and lead testing, our comprehensive services ensure no detail is missed. For homeowners, we are your go-to partner from the first pre-pour on new construction to warranty inspections years later. For realtors, we keep deals moving forward with fast, accurate reports and communication your clients can trust. For commercial investors, we can inspect up to 900 units a day, delivering thorough PCAs, ESAs, and structural plans that keep feasibility studies on schedule. And for builders, we provide engineering-led quality assurance to make sure projects are built right the first time. Founded nearly two decades ago by CEO Harmony Brownwood, GreenWorks was created to raise the bar in an industry that too often settles for the bare minimum. Every inspector completes a rigorous training program—including structural engineering—before serving clients. Our team is backed by licensed engineers, cutting-edge technology, and a full support staff available 365 days a year. When you choose GreenWorks, you’re choosing more than an inspection. You’re choosing a long-term partner committed to safeguarding your property, protecting your investment, and giving you clarity at every step.

"I have a very dangerous situation with my foundation in the front of my house. I hired these guys to tell me how to tell a contractor to fix the problem. When they came out to inspect, I showed them the problem and they agreed, it was a real problem. Later, they send a report back that completely ignores the very real problem I have. Instead, telling me to fix the back of the house that is no problem at all. Trying to ask for further assistance, they said they did what I paid them for."

Ryan K on December 2024

At GreenWorks, we know that buying, building, or investing in property is one of the biggest decisions of your life. You deserve absolute peace of mind and confidence in your investment. That’s why we’ve built the nation’s largest privately owned, non-franchise inspection and engineering company—serving with unmatched quality, speed, and care. Unlike most inspectors who only point out problems, GreenWorks provides clear answers, proactive solutions, and cost transparency. Every inspection includes a detailed walkthrough, a comprehensive report with photos, and a free repair estimator so you know exactly what deficiencies mean and how much they will cost to fix. From foundation mapping, plumbing, and HVAC checks to mold, asbestos, radon, and lead testing, our comprehensive services ensure no detail is missed. For homeowners, we are your go-to partner from the first pre-pour on new construction to warranty inspections years later. For realtors, we keep deals moving forward with fast, accurate reports and communication your clients can trust. For commercial investors, we can inspect up to 900 units a day, delivering thorough PCAs, ESAs, and structural plans that keep feasibility studies on schedule. And for builders, we provide engineering-led quality assurance to make sure projects are built right the first time. Founded nearly two decades ago by CEO Harmony Brownwood, GreenWorks was created to raise the bar in an industry that too often settles for the bare minimum. Every inspector completes a rigorous training program—including structural engineering—before serving clients. Our team is backed by licensed engineers, cutting-edge technology, and a full support staff available 365 days a year. When you choose GreenWorks, you’re choosing more than an inspection. You’re choosing a long-term partner committed to safeguarding your property, protecting your investment, and giving you clarity at every step.

"I have a very dangerous situation with my foundation in the front of my house. I hired these guys to tell me how to tell a contractor to fix the problem. When they came out to inspect, I showed them the problem and they agreed, it was a real problem. Later, they send a report back that completely ignores the very real problem I have. Instead, telling me to fix the back of the house that is no problem at all. Trying to ask for further assistance, they said they did what I paid them for."

Ryan K on December 2024


Avatar for Hayden Restoration LLC

Hayden Restoration LLC

5.00(
6
)
Approved Pro

Hayden Restoration LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
213 local quotes requested

We specialize in all phases of mold remediation, water or storm damage restoration and more! Please call today to schedule your free evaluation (855) 242-9336. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Absolutely great and professional experience would highly recommend to anyone."

David T on July 2025

We specialize in all phases of mold remediation, water or storm damage restoration and more! Please call today to schedule your free evaluation (855) 242-9336. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Absolutely great and professional experience would highly recommend to anyone."

David T on July 2025


SERVPRO of Universal City / St. Hedwig

No reviews yet

SERVPRO of Universal City / St. Hedwig

No reviews yet

As a trusted leader in the restoration industry, SERVPRO of Universal City / St. Hedwig provides 24-hour emergency service and is dedicated to being faster to any size disaster. We can respond immediately to your emergency and have the expertise to handle your restoration or cleaning needs. If your San Antonio property has been damaged by water caused by flooding or water leaks, we have the experience, expertise, and equipment to restore your property properly. Our water removal and cleanup process also provides validation and documentation that your property is dry. We specialize in fire and water damage restoration, the cornerstone of our business. We have extensive fire damage cleanup and restoration training to get your property back to pre-fire condition. *Fire & Smoke Restoration Technician *Odor Control Technician *Upholstery & Fabric Cleaning Technician *Water Damage Restoration Technician Your commercial property's appearance speaks volumes to your clients. So when the need arises for professional cleaning or emergency restoration services, SERVPRO of Universal City / St. Hedwig has the training and expertise to help make it " Like it never even happened." *Small Office Buildings *Large Office/High-Rise Office Buildings *Apartment Buildings *Restaurants *Hotel/Motels *Small Retail Stores *Large Retail/Big-Box Stores *High-Rise Residential *Manufacturing & Industrial *Government/Military

As a trusted leader in the restoration industry, SERVPRO of Universal City / St. Hedwig provides 24-hour emergency service and is dedicated to being faster to any size disaster. We can respond immediately to your emergency and have the expertise to handle your restoration or cleaning needs. If your San Antonio property has been damaged by water caused by flooding or water leaks, we have the experience, expertise, and equipment to restore your property properly. Our water removal and cleanup process also provides validation and documentation that your property is dry. We specialize in fire and water damage restoration, the cornerstone of our business. We have extensive fire damage cleanup and restoration training to get your property back to pre-fire condition. *Fire & Smoke Restoration Technician *Odor Control Technician *Upholstery & Fabric Cleaning Technician *Water Damage Restoration Technician Your commercial property's appearance speaks volumes to your clients. So when the need arises for professional cleaning or emergency restoration services, SERVPRO of Universal City / St. Hedwig has the training and expertise to help make it " Like it never even happened." *Small Office Buildings *Large Office/High-Rise Office Buildings *Apartment Buildings *Restaurants *Hotel/Motels *Small Retail Stores *Large Retail/Big-Box Stores *High-Rise Residential *Manufacturing & Industrial *Government/Military


Avatar for Servpro of Stone Oak

Servpro of Stone Oak

No reviews yet

Servpro of Stone Oak

No reviews yet
58 years of experience

Since 1967, Servpro Franchise Professionals have been assisting Insurers to help their clients recover from fire and water damages across the U.S. Nearly four decades of experience have culminated in the proven processes, technology, equipment and products to help ensure your client's satisfaction.

Since 1967, Servpro Franchise Professionals have been assisting Insurers to help their clients recover from fire and water damages across the U.S. Nearly four decades of experience have culminated in the proven processes, technology, equipment and products to help ensure your client's satisfaction.


Avatar for Fresh Air Restoration & Cleaning

Fresh Air Restoration & Cleaning

4.81(
105
)

Fresh Air Restoration & Cleaning

4.81(
105
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

Fresh Air Restoration & Cleaning is a local firm in business for 32 yrs located at 2418 Basse Rd, San Antonio. We offer free estimates in San Antonio, fast response time and all workmanship is guaranteed. Fresh Air Restoration & Cleaning is licensed by the Texas Department of Licensing in WATER & SMOKE DAMAGE RESTORATION, MOLD REMEDIATION. We are Certified in AIR DUCT & CARPET CLEANING, UPHOLSTERY and FINE FABRIC restoration and ODOR ELIMINATION. We use contact cleaning, UV lights and EPA registered disinfectants to eliminate bio hazards in your home. Our professionally trained, uniformed employee's, not sub contractors will arrive at your home in a marked service vehicle. We look forward to hearing from you. Let us solve your problem and get your home or business back to normal so that you have peace of mind. You may call us now at 210-349-1500

"Excellent service and technicians."

Russ R on October 2023

Fresh Air Restoration & Cleaning is a local firm in business for 32 yrs located at 2418 Basse Rd, San Antonio. We offer free estimates in San Antonio, fast response time and all workmanship is guaranteed. Fresh Air Restoration & Cleaning is licensed by the Texas Department of Licensing in WATER & SMOKE DAMAGE RESTORATION, MOLD REMEDIATION. We are Certified in AIR DUCT & CARPET CLEANING, UPHOLSTERY and FINE FABRIC restoration and ODOR ELIMINATION. We use contact cleaning, UV lights and EPA registered disinfectants to eliminate bio hazards in your home. Our professionally trained, uniformed employee's, not sub contractors will arrive at your home in a marked service vehicle. We look forward to hearing from you. Let us solve your problem and get your home or business back to normal so that you have peace of mind. You may call us now at 210-349-1500

"Excellent service and technicians."

Russ R on October 2023


Global Plasma Solutions

5.00(
1
)

Global Plasma Solutions

5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.


Avatar for SERVPRO of Alamo Ranch

SERVPRO of Alamo Ranch

4.00(
3
)

SERVPRO of Alamo Ranch

4.00(
3
)
Customers say: Super punctual
15 years of experience

SERVPRO has a vision to be the premier cleaning and restoration company in the world. We pride ourselves on providing the best possible customer service at the time you need it most, when things go wrong. SERVPRO will be there with you to help you get your home or business back to "Like it never even happened."

SERVPRO has a vision to be the premier cleaning and restoration company in the world. We pride ourselves on providing the best possible customer service at the time you need it most, when things go wrong. SERVPRO will be there with you to help you get your home or business back to "Like it never even happened."

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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.