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Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</p></div>

Q: Do radon mitigation systems decrease home value?

• <div><p>No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.</p></div>

Q: How long can you go without a radon fan?

• <div><p>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.</p></div>

Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

Q: How does radon enter my home?

• <div><p>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.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Irmo, 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 Irmo, 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 January 15, 2026

Reviewed in January 2026
Watson Arbor Service team did amazing job at our property. They cut three tall trees, which were right between our house and our neghbors', close to both buildings. Kendall, Rayan, Nathan and Melvin were so careful, that no damage was made to anything around. They also cut huge limbs and...
Watson Arbor Service
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Reviewed in October 2025
Swat is top notch. We are very impressed with our tech Hudson and hope we can keep him. He is very professional and courteous! Thank you Swat and Hudson!
Swat Heating and Air LLC
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Reviewed in December 2024
I needed our wooden fence repaired due to a fallen tree limb and Ray did an excellent job. He was courteous, knowledgeable and efficient.
The Dream Fixer Inc
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Reviewed in May 2024
Nate is a very courteous and conscientious. We called Nate to remove an old Bradford Pear tree that was becoming a hazard. He climbed the tree and cut it down limb by limb and lowered each piece down to the ground to reduce the damage to our shrubbery and garden area. Once the tree was down he...
Nate Tree Service & Clearing, LLC
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Reviewed in April 2023
Wonderful initial contact with business. Recognized urgency of tree removal and came the very next day and took it down. Very professional, efficient and left my yard spotless. I would highly recommend them for fair prices and excellent work.
Frontier Outdoor Services
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Reviewed in February 2023
It was very straightforward and honest on the diagnosis and work to be performed. Will definitely call them back for future work.
R&G Heating And Cooling LLC
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Reviewed in January 2023
I had three trees cut down and I am very pleased with the results. They cleaned up and finished the job in a timely manner.
GNC Tree Service
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Reviewed in January 2023
I called multiple companies to replace a piece of fascia/flashing that had blown off and got no response. L&L called and sent two men that same day. They did the job and cleaned up the work area - all at a reasonable cost - very responsive and responsible.
L & L Home Improvement, Inc.
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Reviewed in November 2022
Vary friendly and did a great job removing tree branches and limbs from my property
Disciple Landscaping
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Reviewed in October 2022
The removal of the debris was very professionally completed. We scheduled an appointment and He followed up via text to confirm. We had 4 loads of cedar trees removed and have scheduled another in December. We received 3 quotes and his was the most reasonable. I would highly recommend!
K.O. Clearing and Excavating
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Find Radon detection and reduction specialists in Irmo

Biotek Environmental, Inc.

4.6(

182

)

Serving Irmo, SC and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Words cannot fully express how grateful I am to have found Biotek Environmental! Ted took a lot of time compassionately listening to my concerns and explaining the initial process over the phone. Tyler patiently shared his extensive knowledge on how mold develops along with natural ways to clean clothes and surfaces. He also explained the meter reads of mold counts and humidity levels as I tagged along from room to room during the home inspection. Every step of the process was clearly explained creating a great sense of confidence in me and Dad. Crew members Jermaine, Ray, and Matt were friendly, considerate, and diligent in their hardworking task of removing the mold source. Donna was very professional and prompt to respond to any questions by email. I could go on and on with how pleased and relieved I am to have found Tyler and company but I will just close by stating the obvious: health is vital. My elderly father's health and general quality of life have improved substantially since we hired Biotek Environmental. They are also a clean company with a generous warranty. I highly recommend them to anyone in need of a healthier home."

+13

Response time2 days

25 neighbors recently requested a quote

Recommended by90%of homeowners

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Summit Engineering, Laboratory & Testing, P.C

4.0(

)

Serving Irmo, SC and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

"Very fast response. Professional and service oriented."

Response time1 day

Response rate90%

Recommended by100%of homeowners

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Hometown Renovation & Repair

4.1(

)

Serving Irmo, SC and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"We would definitely hire this company again. They were professional throughout the process and had reasonable rates. We are very happy with the work."

+17

Recommended by75%of homeowners

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Radon Detection and Reduction questions, answered by experts

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

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.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

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.

The Irmo, 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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Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
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Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.
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Radon Mitigation System Diagram: Understanding How It Works
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.