*The Angi rating for Radon Detection And Reduction companies in Williamsport, 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 Williamsport, 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 February 12, 2026
Serving Williamsport, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"Professional radon test and inspection performed by certified technician. Great customer service and reasonable price."
+378
Serving Williamsport, MD and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Wonderful service from start to finish! They repeated a radon test and got quite a different reading than the building inspector who apparently did not place the canisters appropriately I thank Ted for saving us from the radon risk. Highly recommend and very professional"
Serving Williamsport, MD and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"Chris was WONDERFUL! I just purchased a home and wanted to have a mold inspection done for peace of mind. Chris took time to explain the process and put my fears at ease with his vast knowledge. He reviewed the test results with me prior to closing which gave me the peace of mind I needed to confirm I was making a good purchase and great investment. I highly recommend Mid Atlantic Commercial Residential Real Estate Solutions. VERY PROFESSIONAL AND COURTEOUS!!"
Serving Williamsport, MD and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"I was very pleased with the service and work done by SWAT environmental. Lance was very helpful in explaining the process when he booked my appointment and the two techs who installed the radon remediation system were professional and courteous. The system itself isn't inconspicuous but I feel safer knowing that our radon levels are significantly lower now."
Serving Williamsport, MD and surrounding areas
In business since 1988
Free estimates
Credit card accepted
SWAT Environmental has keeping homeowners safe from Radon Gas since 1988. We are the nation's largest Radon Mitigation company but we are local operated and give each customer personal, high class service! Installing over 150,000 mitigation systems, SWAT is the industry leader in Radon Awareness and Mitigation. Call us today to schedule your radon mitigation system installation for less than the cost of most major home appliances!
Serving Williamsport, MD and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"I had a pipe burst in the basement of our rental property, Flood Crew was referred by our realtor. They arrived quickly after the pipe was fixed by our plumber, demoed, and dried out the areas, even handled packing out our furniture and placing carefully in a pod storage while the work was being done. They did mold testing and made sure everything was safe, the best part was that they dealt with the insurance and we didn’t have to do anything."
+57
Serving Williamsport, MD and surrounding areas
In business since 2005
Free estimates
Credit card accepted
With over 15 years of experience in the home inspection industry, we are the experts you need to take care of any of your residential or commercial needs. We will treat your home as we would treat our own. We look forward to working with you! "Peace of mind for your most important investment, your home and your family"
Serving Williamsport, MD and surrounding areas
In business since 2017
Free estimates
Credit card accepted
Welcome to District Home Inspectors. We are the premier professional Inspection company in Maryland. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Whether your project involves minor evaluations or complete inspections, we are glad to be your number one choice. Please call us today to schedule your appointment!
Serving Williamsport, MD and surrounding areas
In business since 2011
Buying a home is the most important and most expensive investment you may make in your lifetime. That is why I will perform your home inspection as if I were buying the home. \nOverholser Home Inspection, LLC., is a quality company that has performed several home inspections and radon testing. \nCall today!
Serving Williamsport, MD and surrounding areas
In business since 2002
Francis has over 10 years of experience in providing service for both residential and commercial clients. He has a specialized education in his field to ensure your safety with high quality, professional analysis. Since Francis personally monitors each project, you can count on a thorough and meticulous job, with the highest quality available. Customer satisfaction is guaranteed, and you may expect competitive pricing without compromising on quality or safety. Give Francis a call today. He proudly serves the D.C. Metro area.
From average costs to expert advice, get all the answers you need to get your job done.
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.
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 testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
