Radon Testing Labs, Inc.

About us

Since 1988 Radon Testing Labs, Inc. (RTL) has been synonymous with quality and service. We are the largest full-service radon company in North Carolina, offering both radon monitoring and radon remediation. RTL is owned and operated by Dr. Zygmunt C. Gromadzki, who received his Ph.D. in Nuclear Physics from the University of Virginia. He is certified by the American Board of Radiology and has spent over 20 years in the treatment of cancer patients using radiation therapy. Dr. Gromadzki is a recognized expert in radiation, radioactive materials, radiation safety, and is the author of numerous publications on these subjects. Our team boasts a collective 50+ years of radon testing, analysis, and mitigation experience.

Business highlights

37 years of trusted experience

Amenities

Free Estimates
Yes
Warranties
Yes


Accepted payment methods

CreditCard

Reviews

4.928 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
96%
4
4%
3
0%
2
0%
1
0%


Rating CategoryRating out of 5
quality
4.9
value
4.9
responsiveness
5.0
Showing 1-25 of 28 reviews

George B.
03/2025
5.0
From my first contact with Matt at Radon Testing Labs I was impressed with the prompt responses and the willingness to answer all questions and provide information on radon inspections and mitigation. We had a mitigation system installed and we found the techs quite knowledgeable and great to work with. The work was done with quality, as scheduled, and on time. Their clean up left no signs that they had been there. RTL is a very professional and efficient operation with a focus on customer satisfaction.
Rating CategoryRating out of 5
$1,600

Utkarsh A.
08/2024
5.0
Very communicative. Everything was on time and no surprises. The radon tech did an amazing install even with a tricky situation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Larry W.
03/2024
5.0
The installation of the radon mitigation system exceeded my expectations. The installers arrived at the scheduled time, provided a detailed explanation of the work they were going to do and worked very efficiently. They were very friendly and an absolute pleasure to have in my home.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,550

Donald S.
03/2024
5.0
This was for a Radon Mitigation System install. These guys are extremely efficient and professional. Everything was explained clearly before the installation and was completed VERY quickly. Thank you for providing such excellent customer service!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,699

Bob B.
04/2023
4.5
Great job - very professional, courteous & knowledgeable!

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
5.0

Yes, I recommend this pro
$1,500

Kathy S.
03/2023
5.0
The installation exceeded expectations in every way. Staff is very efficient, friendly and informative. Great experience!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Ana C.
02/2023
5.0
Quick, courteous, and fair priced

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,500

Maria C.
01/2023
4.0
Very friendly staff and service

Rating CategoryRating out of 5
quality
4.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Dan C.
08/2022
5.0
Great service and employees. Kept us well informed throughout the process.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

kim s.
04/2022
5.0
Just a great company! Professional, friendly and always punctual. I have used radon testing labs for 15 years!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Michael S.
03/2022
5.0
Everything went perfectly. Prompt, great communication, great work.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,400

Barbara S.
11/2021
5.0
Matt and Emory were both very attentive, professional and quick to respond to any call or request! I highly recommend Radon Testing and will continue to use them for yearly testing.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Virginia/Sam E.
10/2021
5.0
Radon Testing Labs responded to my query right away, and were so professional. The work was done quickly and the radon levels went down very quickly.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Demika S.
08/2021
5.0
Awesome job!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Sam L.
07/2021
5.0
Prompt and fast quote for the job. Highly recommended.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Peggy S.
03/2020
5.0
Professional, punctual and easy to work with. I would highly recommend Matt and his team for your Radon mitigation needs.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Laura M.
07/2019
5.0
Very easy to hire, to communicate with and get the job done.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jennifer T.
07/2019
5.0
Very helpful, knowledgeable, and responsive.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Amy L.
06/2019
5.0
They do wonderful work and brought down my radon level to practically nothing. Customer service is the best I have seen in a long time. They are well worth the money I spent to rid my home of radon.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro

John J.
06/2019
5.0
Good company, does quality work in a timely manner

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,300

Tina S.
06/2019
5.0
They explained what needed to be done answered my clients questions got the job done in a timely manner and took care of the radon. My clients were very happy with the job done

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Shirley P.
04/2019
5.0
Great communication on every step!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$135
    • 1(current)
    • 2

Contact information

6851 Greystone Drive, Ralleigh, NC 27615

http://www.radontestinglabs.com

Service hours

Monday:
9:00 AM - 5:00 PM
Tuesday:
9:00 AM - 5:00 PM
Wednesday:
9:00 AM - 5:00 PM
Thursday:
9:00 AM - 5:00 PM
Friday:
9:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed

Service Categories


FAQ

Monday: 9:00 AM - 5:00 PM

Tuesday: 9:00 AM - 5:00 PM

Wednesday: 9:00 AM - 5:00 PM

Thursday: 9:00 AM - 5:00 PM

Friday: 9:00 AM - 5:00 PM

Saturday: Closed

Sunday: Closed

Radon Testing Labs, Inc. accepts the following forms of payment: CreditCard
Yes, Radon Testing Labs, Inc. offers free project estimates.
No, Radon Testing Labs, Inc. does not offer eco-friendly accreditations.
No, Radon Testing Labs, Inc. does not offer a senior discount.
No, Radon Testing Labs, Inc. does not offer emergency services.
Yes, Radon Testing Labs, Inc. offers warranties.

Contact information

6851 Greystone Drive, Ralleigh, NC 27615

http://www.radontestinglabs.com

Service hours

Monday:
9:00 AM - 5:00 PM
Tuesday:
9:00 AM - 5:00 PM
Wednesday:
9:00 AM - 5:00 PM
Thursday:
9:00 AM - 5:00 PM
Friday:
9:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed