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Verified Reviews for Radon Detection And Reduction pros in Johnston, SC

*The Angi rating for Radon Detection And Reduction companies in Johnston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Johnston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on December 06, 2025

Find Radon detection and reduction specialists in Johnston

Avatar for Biotek Environmental, Inc.

Biotek Environmental, Inc.

4.75(
140
)
•Approved Pro

Biotek Environmental, Inc.

4.75(
140
)
•Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
437 local quotes requested

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025

All American Environmental Services, LLC

5.00(
3
)

All American Environmental Services, LLC

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As I am sure you are aware most homes in the area have high levels of radon. We are here to give you the options needed to address this problem. We have the knowledge and capability to deal with any radon issue you come across. We can beat any quoted price as well as offer a $100 referral fee for any work that comes our way. Our team is hear to answer any radon questions at no cost to you. Let All American Environmental Services be your go to guy when it comes to radon.

"Wonderful! Alan was on time and the install went perfectly. He was very knowledgeable and educated me totally."

Linda D on April 2025

As I am sure you are aware most homes in the area have high levels of radon. We are here to give you the options needed to address this problem. We have the knowledge and capability to deal with any radon issue you come across. We can beat any quoted price as well as offer a $100 referral fee for any work that comes our way. Our team is hear to answer any radon questions at no cost to you. Let All American Environmental Services be your go to guy when it comes to radon.

"Wonderful! Alan was on time and the install went perfectly. He was very knowledgeable and educated me totally."

Linda D on April 2025

Avatar for AT Inspect LLC

AT Inspect LLC

4.33(
6
)

AT Inspect LLC

4.33(
6
)
Customers say: Quick response
Free onsite estimate

AT Inspect LLC offers Home Inspection services in Georgia and South Carolina. If you need a Home Inspection, contact us today for immediate service.

"Reached out to schedule and was informed I would need to pay a $50.00 deposit. After deposit was paid all contact was shut down. Was incredibly disappointed in the scam they ran."

Kaitlin O on February 2025

AT Inspect LLC offers Home Inspection services in Georgia and South Carolina. If you need a Home Inspection, contact us today for immediate service.

"Reached out to schedule and was informed I would need to pay a $50.00 deposit. After deposit was paid all contact was shut down. Was incredibly disappointed in the scam they ran."

Kaitlin O on February 2025

Home Radon Detection Co

4.67(
3
)

Home Radon Detection Co

4.67(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a company that provides radon air, radon water, and water quality testing. You will have " peace of mind" knowing that your test was conducted using the finest continuous radon monitors available. Our continous radon monitor reports are easy to understand and include hourly readings of radon concentrations, barometric pressure, temperature, and humidity. They also have a tilt sensor and battery backup so you can be confident that your test is accurate and has not been tampered with!

We are a company that provides radon air, radon water, and water quality testing. You will have " peace of mind" knowing that your test was conducted using the finest continuous radon monitors available. Our continous radon monitor reports are easy to understand and include hourly readings of radon concentrations, barometric pressure, temperature, and humidity. They also have a tilt sensor and battery backup so you can be confident that your test is accurate and has not been tampered with!

Avatar for Echelon Environmental Enterprises,LLC

Echelon Environmental Enterprises,LLC

5.00(
36
)

Echelon Environmental Enterprises,LLC

5.00(
36
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Echelon Environmental provides testing services for Asbestos, Lead, Mold, Indoor Air Quality and Radon for residential, commercial and industrial structures. Please visit our website for more information.

"I called Nathaniel after another contractor found suspected asbestos tape in our crawl space. Nathaniel was able to arrange a same-day appointment for me at a price that was the best of all the many companies I called. He arrived on time and was professional, courteous, and competent. I plan to continue with them for the abatement of any issues his testing uncovers and would highly recommend his team!"

Meg M on May 2019

Echelon Environmental provides testing services for Asbestos, Lead, Mold, Indoor Air Quality and Radon for residential, commercial and industrial structures. Please visit our website for more information.

"I called Nathaniel after another contractor found suspected asbestos tape in our crawl space. Nathaniel was able to arrange a same-day appointment for me at a price that was the best of all the many companies I called. He arrived on time and was professional, courteous, and competent. I plan to continue with them for the abatement of any issues his testing uncovers and would highly recommend his team!"

Meg M on May 2019

GERALD HARGROVE INSPECTION SERVICES

4.06(
16
)

GERALD HARGROVE INSPECTION SERVICES

4.06(
16
)
Customers say: Super punctual
45 years of experience

.We are a full service home inspection and a full service pest management company! Serving the Augusta area since 1982! We offer our customers a wide range of services, value, and extraordinary service that is unmatched in the CSRA. We offer termite letters with your home inspection, as well as a wide variety of inspection services and pest management solutions!

.We are a full service home inspection and a full service pest management company! Serving the Augusta area since 1982! We offer our customers a wide range of services, value, and extraordinary service that is unmatched in the CSRA. We offer termite letters with your home inspection, as well as a wide variety of inspection services and pest management solutions!

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Radon Detection and Reduction questions, answered by experts

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

No level of radon is technically safe, but because it’s everywhere—even in the air outside—it’s impossible to avoid entirely. Instead, the Environmental Protection Agency encourages taking preventative measures if the levels of radon in your home rise above 2 pCi/L. (For reference, the average radon level in homes across the United States is 1.3 pCi/L.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Johnston, SC 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.

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