Contact Us For
A Free Quote!

Our Services

  • Affordable solutions
  • Guaranteed radon reduction
  • Quiet, reliable, right-sized fans
  • Systems for basements
  • System maintenance and service
  • Interior and exterior installation options

National Radon Defense Companies in Maryland

2092 East Old Philadelphia Road
Elkton, MD 21921
3000 Woods End Dr
Joppa, MD 21085
Basement Systems USA is an expert radon contractor serving Northern Maryland and Baltimore; Southeastern PA and Philadelphia; and Northern Delaware; including Philadelphia, Bala, Cynwyd, Springfield, Exton, West Chester, Broomall, Coatesville, Drexel Hill, and Lancaster. If you believe that radon gas is intruding into your home, it's time to take action against it. Basement Systems USA of Pennsylvania, Delaware, and Maryland can help you, by providing radon testing and a quote on the cost of a radon mitigation system in your home.
View company profile for reviews, awards, before & after photos, and more.
115 Atlantic Avenue
Milton, DE 19968
Lawson Home Services is a trusted local company for radon testing and mitigation, as well as insulation and home energy services in Delaware and the Eastern Shore of Maryland. Radon testing is easy and affordable, and Lawson Home Services offers several options for testing. If a radon problem is found in your home, we can provide safe mitigation to reduce the levels in your home.Lawson Home Services can install a radon mitigation system that is compatible with the current waterproofing system in your basement or crawl space.
View company profile for reviews, awards, before & after photos, and more.
11084 Gravois Industrial Ct
St. Louis, MO 63128
Proper Environmental is your local go-to for radon testing and radon mitigation throughout Missouri, including St. Louis, St. Charles, O' Fallon, Chesterfield, Ballwin, Florissant, St. Peters, Maryland Heights, and nearby.
View company profile for reviews, awards, before & after photos, and more.

Protection from radon exposure in Maryland

Radon is a tasteless, odorless, colorless gas that is the natural result of uranium decay in the soil. If your home has high levels of radon, you and your family could be at risk of lung cancer. In fact, radon is the second leading cause of lung cancer in the U.S. and is responsible for approximately 21,000 deaths per year.

Your local radon mitigation contractors, highly trained by National Radon Defense, want to inspect your home to identify the radon levels and determine whether radon abatement is necessary. These radon experts can provide industry-leading mitigation services to maintain a healthy radon level within your Maryland home.

Radon testing and radon mitigation in MD

We Provide:
  • Radon testing
  • Radon mitigation systems
  • Multi-family radon testing & mitigation
  • Vapor intrusion mitigation
  • Indoor air quality services
You Receive:
  • A healthy home environment
  • Clean indoor air
  • Protection for you and your family
  • Safe radon levels
  • Peace of mind
Although no homeowner wants to increase cancer risks for family members, many people neglect to test their homes for radon, an invisible, odorless, cancer-causing gas that emanates from soil and rocks. Contacting a radon mitigation specialist to perform a radon test, or conducting your own test with a DIY radon test kit is the first step in protecting your family from hazardous levels of radon gas.
Customer Reviews
  • By Helen W.
    Baltimore, MD
    "My basement is dry and the atmosphere in the rest of the house seems must..."

    Customer Review

    By Helen W.
    Baltimore, MD

    My basement is dry and the atmosphere in the rest of the house seems must more pleasant and warmer on the coolest of days before actually turning on the heat. Thanks for a job well done.
  • By Scott B.
    Baltimore, MD
    "The only complaint that I have about the work done is that when it came..."

    Customer Review

    By Scott B.
    Baltimore, MD

    The only complaint that I have about the work done is that when it came time to return my hot water tank back to its location near the wall of the basement I found that the installers had placed the port hole for the system right where I needed to put my hot water tank in order to reconnect it. Luckily I can still gain access to the port hole and didn't end up having to re-route my piping but it is semi-covered by the tank which is a bit of a hassle. Other than that I was very happy to see that they were able to install the system without having to cut away my finished walls.
  • By Thomas S.
    Towson, MD
    "This company is owned by a very dear friend of mine. I know him and his..."

    Customer Review

    By Thomas S.
    Towson, MD

    This company is owned by a very dear friend of mine. I know him and his family personally. I have highest regard for him, his integrity, work ethic, generosity and his care. This company did an excellent service for me and my family. They were very clean and efficient; very quick, and they stand behind there work with a guarantee. I give them the highest review.
  • By Phyllis K.
    Essex, MD
    "By comparison to other companies, there was no hard sale which I..."

    Customer Review

    By Phyllis K.
    Essex, MD

    By comparison to other companies, there was no hard sale which I appreciated. The salesperson from another company actually expressed anger when I said I needed 3 days to think about it, but the salesperson from Basement Systems even suggested himself I could take some time to think about it. The crew that came out seemed very knowledgeable with the lead guy explaining things in detail. I felt confident with that he was being truthful. We will see when we have a big rain.
  • By Sanford B.
    Mechanicsville, MD
    "Our salesman Mark Loeffer was vary easy going. He scheduled the work and..."

    Customer Review

    By Sanford B.
    Mechanicsville, MD

    Our salesman Mark Loeffer was vary easy going. He scheduled the work and they showed up when he said. The job was done in a day and the site cleanup was excellent. A very good experience with Basement Systems USA.
  • By Michelle D.
    Abingdon, MD
    "it seems unlikely that any company could earn such a great review.....but..."

    Customer Review

    By Michelle D.
    Abingdon, MD

    it seems unlikely that any company could earn such a great review.....but i was blown away by the service, efficiency, and overall professionalism of Basement Systems. they went beyond my expectations and i am now enjoying the added space to my house. thanks to a fantastic team!
  • By Larry M.
    Abingdon, MD
    "I don't remember all the people I talked to but Jeff and Dave and they..."

    Customer Review

    By Larry M.
    Abingdon, MD

    I don't remember all the people I talked to but Jeff and Dave and they work with me to get the job done Jeff even gave me his cellphone number encase I had any problems Can you ask for any thing more great Job again
  • By Robert
    Bel Air, MD
    "I could not be more satisfied with Base Systems. They came on time and..."

    Customer Review

    By Robert
    Bel Air, MD

    I could not be more satisfied with Base Systems. They came on time and were extremely courtious and polite. the work was done vey well and they cleaned up really did not leave a mess. All in all Willie Ransom and his crew did an excellent job .
  • By Lynda B.
    Bel Air, MD
    "Absolutely. Wish I had known about you years ago"

    Customer Review

    By Lynda B.
    Bel Air, MD

    Absolutely. Wish I had known about you years ago

Featured Maryland Cities:

Click to see why people hire us

Recent job requests for radon mitigation in MD:

Project Location: Randallstown, MD 21133

Comment: Need a quote for radon mitigation in our home.

Project Location: Crownsville, MD 21032

Comment: There have been high levels of radon in some of my neighbors houses recently. When I moved in 15 years ago the radon levels were acceptable but I understand there could've been an earthquake or some other shift that has caused extremely high radon levels in some neighbors houses and they have notified the neighborhood to get the levels checked and corrected

Project Location: Bel Air, MD 21014

Comment: Attempting to reduce radon levels and potential mold

Project Location: Chestertown, MD 21620

Comment: House air quality; radon.