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Avatar for TriState Radon Services, LLC
TriState Radon Services, LLC
5.0(
40
)

Serving Randolph, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Rob was a good match for us and the work that we needed done. Communication was strong - response was swift, including for at least one accidental phone call. His installation work was 5 / 5. Because he was working in a rail space that had been recently insulated; the project manager also inspected Rob's work to make sure his team did not need to do any follow up repairs. He was very impressed by Rob's workmanship. Rob's mitigation work resulted in a significant reduction in radon levels as measured by our Corentium Home 2 devices from Airthings, this device measures radon/temp/humidity continuously and allows us to monitor levels via the app. if you are concern about radon in your home, I would recommend both Rob from Tri-state, and understanding your long term radon levels using a device such as the Corentium Home 2 device. Below is a snapshot showing the reduction in radon levels in our crawlspace after Rob completed his work."
Exterior system
Radon Mitigation System
Response time10 hrs
47 neighbors recently requested a quote
Recommended by32%of homeowners
Avatar for North Jersey Radon Services LLC
North Jersey Radon Services LLC
5.0(
10
)

Serving Randolph, NJ and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Chris came to my house. He was here for about four or five hours. He really worked hard getting around all the other pipes and things in the basement. He’s very thorough and what he does. Every aspect of the job was done precisely. I would hire him again and recommend him to anybody that needs a Radon system. And he’s a very nice guy. I hope this helps you on picking a good Radon person to do your radon system. Northern New Jersey Radon services is the one to choose."
Internal piping
external fan
Pit installation
excavation of the pit
start of concrete removal

+7

16 neighbors recently requested a quote
Avatar for Radon Shield LLC
Radon Shield LLC
4.9(
103
)

Serving Randolph, NJ and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Radon Shield was hired after I got a higher then expected reading for radon in by home when selling it. Benedict shared a lot of great advice about radon gas in the home, he was able to schedule the install in a very fast time frame which was extremely helpful because I was selling my home. The quality of work was outstanding and he did a great job explaining thing to me and by wife. He also did a great job cleaning up after the install. I would hire Radon Shield in the future in needed."
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+10

Recommended by100%of homeowners
Avatar for RADATA, LLC
RADATA, LLC
4.2(
200
)

Serving Randolph, NJ and surrounding areas

In business since 1984

Free estimates

Warranties offered

"Fantastic to work with. I received an elevated radon level after a recent test which required mediation. RAdata were very responsive and timely. They even called several days prior to my appointment to offer a new time after a cancellation. They arrived on time, quickly diagnosed the problem, and performed the required work. The technician took the time to fully explain the system and offer suggestions after a new issue was found. I would highly recommend their services."
System on back of house
System next to downspouts
System in back corner
System by AC units
interior pipe in garage

+7

Recommended by95%of homeowners
Avatar for Perfection Home Inspections LLC
Perfection Home Inspections LLC
5.0(
26
)

Serving Randolph, NJ and surrounding areas

In business since 1970

Emergency services offered

"Jeff did a great job!  He was very thorough and took the time to walk us through each and every aspect of the house.  This is our first home purchase so we had no idea what to expect, but Jeff provided us with a great education.  He pointed out potential issues but also pointed out things that were in good shape, which was very reassuring for us.  All in all, I would recommend Jeff for anyone looking for a quality home inspection in New Jersey.
"
Jeff
.
.
Recommended by96%of homeowners
Avatar for Fresh Air Solutions, LLC
Fresh Air Solutions, LLC
4.7(
99
)

Serving Randolph, 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.."
Frost Wall
2 System Install
System and Sump Discharge
System
Interior Guage

+2

Response time12 hrs
Recommended by96%of homeowners
Showing 1-10 of 19
Radon Detection and Reduction questions, answered by experts

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

The Randolph, NJ homeowners’ guide to radon detection and reduction services

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