*The Angi rating for Radon Detection And Reduction companies in Claymont, DE 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 Claymont, DE 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 March 30, 2026
Serving Claymont, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Warranties offered
"They were really helpful and polite they explained the job from start to finish and they explian how radon is harmful."
+8
Serving Claymont, DE and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"It was a system that was needed to reduce radon in our basement"
+2
Serving Claymont, DE and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Our inspector did an excellent job with inspecting the home. He proved to be knowledgeable and offered recommendations for improvements."
Serving Claymont, DE 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 Claymont, DE and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"We had had a new kitchen put in and then a year later, we had had our kitchen floor redone and basement repaired after a flood in our house. Water from our washer had flooded the kitchen and laundry room and then flowed through the floor into the basement theater room and rec room. We had to have a new (porcelain) tile floor put in upstairs and new paint and carpeting throughout the basement. The work for the new kitchen and then the flood required a huge amount of sanding, spackling and more sanding...etc. The dust in our house was a big problem afterwards from the spackle dust that accumulated in our ducts. We decided to have our ducts cleaned and found All States on Angie's list. It went great! They were on time, conversant about the state of our ducts. They did the job. I have noticed that the air is better in the house and we have much less dust on furniture! Very happy with their services and I would definitely hire them again.
"
Serving Claymont, DE and surrounding areas
In business since 2002
M&M Home Inspection comes highly recommended because they are personable & professional. They are Independently owned and operated with over 5 years of experience & are dedicated to customers.
If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.
You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional.
Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.
Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.
In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.
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 Philadelphia, PA, 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.
Need to find a qualified radon mitigation service? Learn how to hire the right pro, from certifications to questions to ask, to protect your home.
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.
