*The Angi rating for Radon Detection And Reduction companies in Monkton, MD 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 Monkton, MD 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 August 12, 2026
Serving Monkton, MD and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Great reduction in radon. 10.0+ prior to install, 1.4 after install!"
+2
Serving Monkton, MD and surrounding areas
Approved
In business since 1987
Free estimates
Credit card accepted
"The service was good. He showed up on time and did the test. The only problem I had was that he is not a full service, he only checks for asbestos and does not remove.The test took longer than I was told, but I don't think he had a choice. Overall he was ok, just not a perfect match for my needs."
Serving Monkton, MD and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Mr. Riddick was very professional and thorough. The report and his recommendations were very helpful in the decisions I made moving forward after receiving the mold test results."
Serving Monkton, MD and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"He was very friendly and explained what he was doing and when the results come in heâ ll explain what to do from there."
Serving Monkton, MD and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"The owner, Jerry Stal, provided a competent inspection and assured me that all that my basement needed was a surface treatment. This was inexpensive. He saved me thousands of dollars because the other companies recommended a lot of tear down and other costly actions."
Serving Monkton, MD and surrounding areas
Approved
Warranties offered
Credit card accepted
Customers say: True professional
"Very thorough and professionally performed."
Serving Monkton, MD and surrounding areas
In business since 1998
"We got their information from our friend. When we were making an appointment, Mike gave us his professional advice based on the house details. They arrived on time and Mike's team is extremely professional and friendly. They did a wonderful job for us. We are really impressed and pleased with their work. Will highly recommend anyone who wants to do radon mitigation."
Serving Monkton, MD and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"Very knowledgeable and informative on all subjects we had questions for!"
Serving Monkton, MD and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"I have zero complaints about our tech, Jack. He was thorough and communicative! We have a system installed through the roof and he was able to paint the exhaust pipe to match the shingles. The front office wasn't as great. We had to schedule a follow up visit because the initial install wasn't going to work. Unfortunately they never put me on the schedule the second time. So my install day came and went but we didn't hear anything from Swat. I calle the next day and no one knew what I was talking about. Our account manager (Brian) was very apologetic and offered to take some money off our install because of the confusion and the fact that there were no available appointments until August 11th. Luckily they were able to add me to the top of their cancellation list, so we ended up with a system just 3 days later. I appreciate their willingness to make it right with me. I would reccommend them to others looking to have a radon abatement system installed."
Serving Monkton, MD and surrounding areas
In business since 2015
Credit card accepted
"Ed was on time,professional, and did an excellent job. He was very knowledgeable. I would certainly recommend him."
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a radon mitigation system in Baltimore, MD, depends mostly on the type of system being installed. Use this guide to learn about your options.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
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.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
