*The Angi rating for Radon Detection And Reduction companies in Newark, 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 Newark, 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 July 31, 2026
Serving Newark, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Warranties offered
"Replaced our aging radon fan for a reasonable price."
+8
Serving Newark, DE and surrounding areas
Approved
Super Service Award Winner
In business since 1980
Free estimates
Emergency services offered
"I had a hard time finding a radon company in my area but RTE was very accessible, easy to work with, highly skilled and knowledgeable. The analysis of our problem was well done and the remediation price was very affordable. Work was done quickly and well. I would recommend this company to anyone needing radon remediation and system repair."
Serving Newark, 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 Newark, DE and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"We hired George to inspect our home, a new construction. He came twice, once during the pre-drywall stage and once for the final inspection. During the pre-drywall state, he brought a colleague with him who used to work in new home construction as a second set of eyes at no additional cost to us. He also conducted a radon test. Altogether, George is very knowledgeable and thorough. I followed him for the final inspection and asked about a million questions, and George always gave full, detailed answers. You can tell he values the service he provides to new homeowners and takes pride in his work."
Serving Newark, DE and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Very thorough and quick to respond. His report gave me the justification to request $9,200 in repairs from the seller which he agreed to complete."
Serving Newark, DE and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"Chris Barcikowski was on time, cordial, professional and spent a reasonable time checking our home issues. He provided us with recommendations on the action to take to solve the water standing inside the air ducts. He did testing for possible mold conditions and siad the results should be ready for us by this Friday, 9/12.."
Serving Newark, DE and surrounding areas
In business since 2002
Free estimates
"The Technician Tom was very educated and took time to answer my questions to which I all ready new the answers to. This was my test to his knowledge before we got started on the job. H was very good explaining the operation of the system to us, which helped my wife hear it from a different person other then myself. Workmanship is very neat and clean and a very professional job. I hail form a service background of 35 years and can say Tom was an excellent customer service person."
Serving Newark, DE and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"I could not be happier with this company. They did the work right away, even working on the weekends. They were very knowledgeable about what needed to be done and how to get the debris tested they have been very responsive. They have continued to be helpful to me in dealing with the company that left the silica dust in my home. You will not be disappointed if you use this company. I have never seen a company that is so attentive to your needs.
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Serving Newark, DE and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"I am very pleased with the quality work and how quickly my water damage issue resolved. They were extremely professional and knowledgeable and did a great job at keeping me up to date on the progress of the cleanup."
+57
Serving Newark, DE and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"Had a good experience but was sell to us a bit to much ."
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.
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.
