Top Radon Testing Companies Near Ashburn

Ashburn, VA (20146)

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Reviews of Radon Inspectors Nearby Your Area

Radon Abatement Services
5.0
We used Radon Abatement Services for our basement. The radon levels were slightly over the EPA recommended limit. We mitigated the radon as part of a larger basement renovation. Radon Abatement Services worked with our General Contractor and did a great job. Radon levels are vastly reduced now as a result of their work.
- James H....
Radon Abatement Services
5.0
Jim Humphryes of Radon Abatement Services installed radon mitigation systems for my single family home in Sterling. The original/prior radon level was 5.8 in the basement, I ran couple of short-term radon testings a week after Jim installed the system, and now the reading is 0.4 which is normal. I strongly recommend Jim and Radon Abatement Services for any radon mitigation work. Jim and John are very professional, the price is very reasonable at $800, and quality is exceptional. Best of all, my radon level is now normal, and moldy smell in the basement is gone. I am so happy to use their services and will recommend them to all of my friends and neighbors. 5-star company. Keep up the good work.
- Derek F....
Radon Abatement Services
5.0
Radon Abatement Services (RAS) had certain, correct radon tests performed, demonstrated sound experience and good judgment in developing radon abatement plan, demonstrated good workmanship, dealt intelligently with special problems that arose, and stubbornly refused to give up its efforts to solve my radon problems. An honorable, intelligent, experienced and highly capable company.
- Michael M....
Radon Abatement Services
5.0
Outstanding. Could not have asked for anything more. We had been experiencing high levels of Radon in our basement area. I measured levels above 6 pCI/L using a a very good electronic radon detector. I located Radon Abatement Services on Angie's List and received an on-line quote from them after answering a number of questions about my home. The quote was very reasonable and well within the range that I expected to pay. They met all of the qualifications you should look for in hiring a radon abatement service. They do no radon testing to preclude any conflict of interest with their clients. The installer was outstanding, knew what had to be done and completed the installation to my satisfaction in about 6 hours for the quoted price. I'm pleased to say that my radon level has dropped to 1.2 pCI/L since the system was installed a little less than 2 months ago. If you need a radon abatement system definitely call Radon Abatement Services.
- Arlene V....
United Radon Sciences
5.0
United Radon Sciences were great. They put up two fences and they track the radon. I chose them because of the Big Deal. They were quick and responsive.
- Evelyn L....
Radon Abatement Services
5.0
I used Radon Abetment Services LLC to install a radon system in my basement. John and his team were excellent and I highly recommend them to anybody with this need. John was able via video over phone identify where the system should go. His team was extremely professional and courteous. The installation took a day and the improvement in radon levels was remarkable. We would absolutely use them again.
- Todd F....
Radon Installation Contractors LLC
5.0
I highly recommend Ric for his ability to think outside the box to solve a complex problem that I had. We were told it was almost impossible to fix but Radon Installers saved the day. After looking around for 40 minutes Ric figured out how to install the migration system. Not only were the radon testers who came by afterwards to retest my radon levels impressed with his work but my home owners association took his business and want to use him for any other radon problem that may arise in the future. That is QUALITY work.
- John M....
Radon Abatement Services
5.0
I monitored the radon in my house for about a month with a Radon Monitor made by AirThings. After a month, the average stayed around 4 pCi/L. I have a friend who recently had a radon reduction system installed in his house, so I asked who did the work for him. He told me that Radon Abatement Services did the work and that he could not have been happier with the work. He gave the owner's (John Swett) direct number. I called John and told him that I would like an estimate to have a radon reduction system installed. John immediately gave me the information that I needed to start the process. Within an hour, an employee (Nikki) called me and patiently, knowledgably, and professionally provided me with step-by-step instructions to get the ball rolling. Nikki is very responsive, and she follows through with everything she says she is going to do. I was provided an estimate, installation date, and within a few days I had a new system installed. The crew arrived on time and impressed me from the minute they got out of the truck. The team leader (Walter) knew me by name and introduced me to his crew. The crew is AMAZING! From start to finish, they respectfully treated my house as if it was theirs. Drop cloths were laid everywhere they were working. Walter and I walked throughout my basement, and he explained in great detail the extent of the work that he and his team would be performing. He explained the tests that he was performing (i.e. material under slab, air suction). Once he gathered the data he needed, he explained to me the entire process, and then he and his crew went to work. Walter is an expert through and through. Not just with his knowledge of radon abatement, but as a professional craftsman. The attention to detail, precise placement of all holes, piping, and electrical are very impressive. The efficient manner in how the job was carried out is second-to-none. The precision and amount of work that they accomplished in just under 4 hours is phenomenal. Since my basement slab did not have gravel underneath, the installation required two suction points. Walter's design, calculations, and fabrication of the two-suction system were brilliant. The work, both inside and outside, looks like a masterpiece. When the job was complete, Walter walked me to each portion of the job (inside and outside) to show and explain all aspects of the system. I'm 59 years old. During my lifetime I have hired many companies to perform a variety of services. Radon Abatement Services ranks in the top 5% of all companies I've ever hired. If you are considering getting a Radon Reduction System, or have Radon Reduction needs of any kind, LOOK NO FURTHER! Radon Abatement Services is the only place to go. The owner, employees, and services are beyond compare.
- James F....
Reliable Radon
5.0
Reliable Radon was able to schedule quickly, and Robert did a very neat job activating my existing passive radon pipe. It was a challenging job, with the pipe tucked in a corner behind an HVAC unit, but Robert did it very cleanly. The included re-test gave us a high reading, so Reliable dropped off another test, which showed that the actual radon levels had been remediated quite well by the work.
- Sadiq A....
Radon Installation Contractors LLC
5.0
Ric did an excellent job. He definitely knows the in's and out's of Radon remediation and is a careful craftsman who pays attention to the details. I did recommend him to a friend and she was also very happy with his work. My Radon level in the living space had a 3 month average of 3 PiC/L with peaks as high as 5, and after remediation it fell to a seven day average of .27 which is roughly the outside Radon level.
- Michael S....
Environmental Testing & Research Laboratories, Inc
5.0
That was excellent. That worked really well. It showed that it was negative, which is good. I had it tested by a different company before and they found radon. The builder put on an active radon fan system so I hired this company to do a post radon test. They were excellent. I’ll give them a top rating. They were prompt. I had the lab results within a week.
- Jeffrey B....
Radon Abatement Services
5.0
Professional from beginning to finish of the job!! Installed Radon system from the basement and had it run outside the house on the side corner where the system is not noticable. Technican was quick but thorough and cleaned up after himself. He explained how to monitor the system and showed me everything he did. I have told my neighbor about Radon and that they should get their home tested and referred Radon Abatement Services to them. True professionals!!
- Joann D....
Radon Abatement Services
5.0
I met the team at the door. Walter the team leader presented me with a business card and introduced his other team member Mario. They had their own foot covers to protect the floors and were so very courteous. Walter assessed what work had to be done ... this was after John Swett the owner had been to the house previously to provide and estimate. Walter explained every step of the way on what they would be doing ... how the system would look outside of the house and where it would be placed. They worked very hard and diligently with smiles on their faces. I knew they had a very long day and I was their last appointment for the day. Walter and Mario finished the project had the entire area cleaned up and were just great guys. Once completed, Walter went over the entire system to show how it worked. The electricians that conducted work in our house prior left electrical wires hanging out of a box and the box on a shelf. Walter happily put the box back in place once it was discovered. The work started a few hours later than I had expected but seeing how much work goes into this ... I was not offended as anything can change on a job. All I can say is a great job ... well done!!!
- Anna B....
RADON TESTING
5.0
I did get it off of Angie's List. They came just before the 4th of July and set it up, and they came on time and everything and everything was fine. A nice woman came, and then she came back picked up everything and then, by that afternoon, I had the results. I just called one person and I don't know about the price but it was fine. I didn't check it out because it was hard to find anybody. Most of them put in the device that solves the problem of the Radon and the first company I called didn't do the testing. A couple of them said they didn't do testing, so I was just glad to find them. They were here exactly when they said they would. I had to leave earlier and so I called them and asked if they could come an hour earlier, and they did.
- Gail V....
United Radon Sciences
5.0
Mr. Parry of United Radon Sciences was professional, thorough and punctual. When I forgot to set out the box for him to pick up he even came back the next day, without any hassles! He explained the process to me so that I understood exactly what was happening during the test and answered all of my questions. My husband and I decided to do our radon test after purchasing our house and we are so glad that we did it with United Radon Sciences!
- Natalie E....
United Radon Sciences
5.0
The guy who came out, worked within my schedule, was pleasant, arrived in the time frame agreed upon, explained everything, and came to pick up the machine that tests the Radon within my schedule too. I was very happy with the process, and the big deal. No Radon in my house.
- Heidi C....
Ferraro Real Estate Service, LLC
5.0
Michael Ferraro designed and installed a radon mitigation system. He surveyed the home and installed a quality system that looks great. Our home in Leesburg had an average radon level of 12. After Michael installed his system we have an average of 0.50. Highly recommended.
- Christopher A....
Radon Abatement Services
5.0
5 stars from start to finish. Nikki the scheduler/admin was very kind and patient in getting the details of my basement layout and communicated with owner John to ensure the correct diagnosis and remedy for my situation. I thought that I needed to have my crawl space encapsulated ($$$), but turns out that a remediation system in my utility room was the solution. The team arrived on time for install and took great care to put it in the least intrusive area of the room. Even though it required moving and replacing shelving. They also positioned the exterior vent pipe and fan in a place that wasn’t an eyesore. They also went above and beyond by recognizing and sealing a large gap in the foundation slab. Super clean and quality work. Unbelievable value. Couldn’t be happier.
- Yousef S....
Radon Abatement Services
5.0
Radon Abatement Services did an excellent job installing a new radon reduction system in our house. The estimator was timely, John explained how the system would work and what would be involved and provided a quote in a timely fashion. The installer's were on time and did a great job with the installation. The work looks professional and the system is quiet.
- Aaron A....
Radon Abatement Services
5.0
During the first visit, my property was inspected, an approach for radon abatement was recommended, and a cost estimate was provided. During the second visit, the system was installed. The work was performed very skillfully and the area was cleaned afterwards. Two radon test kits were provided for post-installation testing.
- Mark H....

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