Top-rated radon gas abatement pros.

Get matched with top radon gas abatement pros in Knoxville, TN

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas abatement pros in Knoxville

Avatar for Radon Consultants of East Tennessee, LLC
Radon Consultants of East Tennessee, LLC
4.9(
17
)

Serving Knoxville, TN and surrounding areas

Angi Approved

In business since 2017

Free estimates

Warranties offered

"The team came out and gave us a fair quote and communicated well. Installation was quick and the crew was considerate as I was working from home during the installation. Highly recommend!"
Suction Point hidden in Basement Closet
4" Radon pipe hidden in bedroom closet
Radon fan located in the attic
Radon Exhaust vent
Suction point in a finished workshop

+4

Response time11 hrs
Recommended by94%of homeowners
Avatar for GreenFrog LLC
GreenFrog LLC
4.2(
10
)

Serving Knoxville, TN and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Horrible, dishonest, quality was subpar. Wouldn't hire and the timeframe is a money grab. Please take my advice and use another company. Shane and his crew shouldn't be in remodeling but maybe just demo work. "
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time9 hrs
10 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Green River LLC
Green River LLC
4.7(
19
)

Serving Knoxville, TN and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"Because of weather problems Lora and crew were here two weeks early. Scot and his helper cleaned out the trash in the crawl space and prepared to put down the vapor barrier. They did this job a bit out of order because of the COLD weather. The morning they started it was 16* ! Their first task was the vapor barrier. After that the spray foam insulation. Then the old insulation was removed and hauled away. Lora did the job in this order because of the COLD weather. She told me she would NOT leave us with no insulation for any amount of time with temperatures this cold. Lora cares about her customer and works very close with them . She even let me work with them a little bit. I'm an old retired Marine and still like to be involved. I don't think I got in the way too often. Her prices are very reasonable; there is no reason for negotiation. I'll definitely be calling Lora at Green River for any other needs around my home. Thank you Lora & Scot Howard, the Troll"
Additional Photos
Additional Photos
Additional Photos
Typical Crawlspace
Our Gold-Level Vapor Barrier

+8

Recommended by89%of homeowners
Avatar for Radon Consultants of East Tennessee
Radon Consultants of East Tennessee
5.0(
7
)

Serving Knoxville, TN and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"The first company we called, was slow to respond and tried to reschedule the morning they were supposed to deliver. The RC team was professional, kind, honest, on time, and we are very satisfied with the value. They followed up to make sure everything was working right and that we were satisfied with the work and product. That's the way customer service should be. Excellent!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Recommended by100%of homeowners
Showing 1-10 of 27
FAQs for radon gas abatement projects in Knoxville, TN

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 Knoxville, TN homeowners’ guide to radon gas abatements

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