*The Angi rating for Radon Detection And Reduction companies in Westminster, 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 Westminster, 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 09, 2025
Serving Westminster, 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 Westminster, 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 Westminster, MD and surrounding areas
Approved
Warranties offered
Credit card accepted
Customers say: True professional
"Very thorough and professionally performed."
Serving Westminster, MD and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
Hello my name is Jason William Hornung. Buying a home is a big investment. I want to help you make a well informed decision. I have been in the residential construction field for 17 years, and have an intimate knowledge of the homes in our area having done so much work in them myself. I stay continuously trained studying current information to give the best reports out there. I've seen many things that other inspectors have missed both as a home inspector and a contractor. My inspections meet or exceed the ASHI standards of practice. WWW.Homeinspector.org/standards WWW.JWHInspections.com
+3
Serving Westminster, 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 Westminster, MD and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"Responsive, on time and returned the report within one business day. The report was extremely thorough and helped to identify issues for resolution. I would absolutely hire them again!"
+1
Serving Westminster, MD and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"Chris was very professional on the phone and it surprised me that, for such a low price, I was getting as much as I did! MA CARRES is a FHA 203k qualified inspector (though I only hired him as a home inspector) AND a Realtor so I got a little bit of everything when he and his employee came. The fact that they are retired firefighters was a bonus as I had some questions about darkened wood and they let me know where the CO2 detector should really be located for best effect. I definitely will use MA CARRES in the future!!"
Serving Westminster, 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 Westminster, MD and surrounding areas
In business since 1988
Free estimates
Small jobs welcome
"I received 3 quotes from 3 different company's who are certified in radon and Mason Dixon was the highest by $170.00 plus they have a gravel clause in their contract while others did not which could cause the price to go up another $500."
Serving Westminster, MD and surrounding areas
In business since 2013
Free estimates
Emergency services offered
"Rodney is extremely professional, easy to schedule and highly knowledgeable about lead testing! Have used him many times and will continue moving forward. Highly recommend."
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.
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
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.
