
Serving Delaware, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"Great service. Highly recommend for your radon mitigation project"



*The Angi rating for Radon Detection And Reduction companies in Delaware, NJ 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 Delaware, NJ 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 May 09, 2025

Serving Delaware, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"Great service. Highly recommend for your radon mitigation project"



Serving Delaware, NJ and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
"Chris is very easy to talk to, very straightforward, gives all the clear details on the project, and good info about the pros and cons of a radon system 👍👍"





+7

Serving Delaware, NJ and surrounding areas
In business since 2014
Free estimates
Emergency services offered
"It is my absolute pleasure to write this raving review for Benedict Ugorji (the owner) at Radon Shield LLC and I make no commission recommending him. The radon level was 1.8 pCi/L when I bought my home in Holmdel, NJ, in February 2021. I wanted to lower the radon level for personal health reasons (I have a young 3 year old) not for a real estate transaction (goal level <4 pCi/L). Safe levels were established in the 1970s (The history, development and the present status of the radon measurement programme in the United States of America. Radiat Prot Dosimetry 2015; 167(1-3): 8-14) so maybe new safe levels should be lower than the current recommendation to reflect available technologies for radon mitigation as there is no safe level. I spent $700+ for a new Fantech Rn4EC-4 fan and to seal the French drain serviced through RAdata in Flanders, NJ, and the level was unchanged at 1.6 and 1.9 pCi/L after servicing. RAdata is a disorganized business that will recommend the most expensive system (the energy recovery ventilator) that costs $3000 that other radon companies (I got two second opinions) will say that it does not work. Then RAdata proposed to install a second mitigation system right next to the current system, but could not intelligently justify why the second system would be right adjacent to the current system where there is already subterranean air flow generated by the current system instead of tackling the no subterranean air flow zone at the farthest end of the basement. Please refer to my review about RAdata on Yelp and Facebook and my subsequent reply to their response for details. I kept looking for another radon company and fortunately I found a gem in the unscrupulous radon business. The gem is Benedict whom I unwaveringly and unequivocally recommend. Benedict is responsive – he patiently listened about my radon situation and collected information about my pre and post service radon level and even information down to the granular level like what make and model fan RAdata installed. Benedict came to my home for the consultation, to run the diagnostic tests, he proposed solutions and offered his rational, he did the installation of the second mitigation system (in the area of the basement with no subterranean air flow) from start to finish by himself, he used a more powerful and cheaper fan for the second system (than the one RAdata installed for my first system), and he guaranteed to lower the radon to a specified level in his contract. Benedict charges one flat service fee (whereas RAdata charges the first hour and then at 15 min increments so you are discouraged from asking questions). Benedict took his time to explain to me about how a fan’s performance (like moving air measured in cubic feet per minute or CFM) is affected by your soil’s static pressure (the value on your u-tube manometer). He even followed up with me on a Saturday via text message about the short term radon level measured with the Corentium radon detector (while the charcoal kits are being sampled) and guided me through interpreting the short versus long term average as the values were quite different. We touched based again when the charcoal test came back and the levels were an astonishing 0.5 and 0.6 pCi/L!!!"





+10

Serving Delaware, NJ and surrounding areas
In business since 1984
Free estimates
Warranties offered
"RAData did an excellent job with analysis, installation, and verification for our radon remediation project. I would highly recommend them if you want a professional and timely installation for your radon system!"





+7
Serving Delaware, NJ and surrounding areas
In business since 2022
Free estimates
Warranties offered
"Very pleasant to work with, Knew his stuff and explained well how radon mitigation works."

Serving Delaware, NJ and surrounding areas
In business since 2020
Free estimates
Warranties offered
"It is a bit premature to say completely satisfied, because I won't know until radon testing is done how successful the exhaust fan and sealing of sump pump has had on my radon level. Will say that Pete, owner and operator of Fresh Air Solutions was very cooperative to work with and seems to have a good knowledge base of radon remediation. Appreciated that he was very respectful of my wishes and concerns.."





+2

Serving Delaware, NJ and surrounding areas
In business since 1987
Free estimates
Credit card accepted
"Peter is quite good & thorough enough in his inspection. He is very punctual, and responsive in his (email) communications. Gives a thorough report, even though I thought he focuses more on a few points on the outside of the house, and not quite 'inside-out'. I had to follow up & clarify quite a few things inside with him.
But overall he seemed to be very experienced, and thorough in his analysis.
Gives a big report, exactly within 48 hours, as promised. Quite a few things in the report seemed repetitive, but overall had all details & plenty of pictures from every possible angles. He also sent the Radon report after a few days, as promised.
There are quite a few things that he won't check, some of them might be obvious (as kitchen appliances), but it would have been good to know in advance what all things he does, or doesn't. He would have you sign the waiver / contract terms only after the inspection is done. I would suggest to ask those from him beforehand, and decide on yourself.
I would rate him 4 out 5 in terms of quality of inspection.
But for all other aspects, professionalism, politeness, punctuality, responsiveness etc, indeed a 5 out of 5!
Cheers.
"





Serving Delaware, NJ and surrounding areas
Free estimates
"Very professional. Definitely recommend them to a friend. Very educated and fair prices. My experience with the company and the technician were very professional."





+7

Serving Delaware, NJ and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"David inspected a potential home I was looking to purchase and he was so thorough that by the time we were done it gave me a very clear understanding of what issues the house had, what needed fixing and what was downright dangerous. When buying a home, you need a great inspector like David because if you don't get a good inspection you run the risk of buying a big money pit. I bought a home once before but that was a joke compared to the great inspection David did. The home David inspected was a small 1200 sq. home but it was built in 1935 and so he did mention we should expect to see some things pop up. However, he went above and beyond and I am so grateful for his hard work that I will recommend him to others in the future as well and will call on him again for inspections. He also brought Alex, a septic inspector, with him who was also very thorough and very good and provided a very through report. Thank you, David, for your wonderful help! You have no idea how much I appreciate it."





+9

Serving Delaware, NJ and surrounding areas
Free estimates
Emergency services offered
Warranties offered
"Precision Home Transitions was such a big help in getting us ready to sell our home. Their expertise and guidance were indispensable. One stop shop for getting our home ready to sell!"





+20
From average costs to expert advice, get all the answers you need to get your job done.

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.

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.