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Avatar for North Jersey Radon Services LLC
North Jersey Radon Services LLC
5.0(
10
)

Serving Annandale, 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

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

Serving Annandale, 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."
Additional Photos
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+10

Recommended by100%of homeowners
Avatar for Radon Shield, LLC
Radon Shield, LLC
5.0(
85
)

Serving Annandale, NJ and surrounding areas

In business since 2013

Free estimates

"The service was a Radon Remediation System...not listed above. Benedict and his brother were GREAT. I needed it to sell my home and they drive 90 miles and come out in just a couple days. The work involves boring through your basement floor, piping up and out of the house and up above the roof line with a fan and pressure gauge installed. I was apprehensive but trusted their "get right to it" attitude and the finished project is neat, clean and sealed in all necessary areas. Long term exposure to Radon can potentially cause cancer. The home tested as high as 5.2 (4.0 is bad) and after the system was installed another test read 0.3...virtually none. They were easy to deal with by phone, text and email and while I am unhappy that I had to spend the money, I feel it was WELL SPENT. I highly recommend them to resolve such a "mysterious " issue."
Plainsboro NJ
Trenton NJ
Mitigation system
Newark NJ
Flemington NJ

+10

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

Serving Annandale, 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 Fresh Air Solutions, LLC
Fresh Air Solutions, LLC
4.7(
99
)

Serving Annandale, NJ and surrounding areas

In business since 2020

Free estimates

Warranties offered

"Looking to finish my basement, so I did a radon test. It came in at 2.5, which isn’t bad but I wanted to get it lower. Fresh Air LLC came out and set me up with a mitigation system. Upon re-test, the level was under 0.4. They were quick and effective."
Frost Wall
2 System Install
System and Sump Discharge
System
Interior Guage

+2

Response time12 hrs
Recommended by96%of homeowners
Avatar for Mr Home Inspector LLC
Mr Home Inspector LLC
4.7(
14
)

Serving Annandale, NJ and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"If you want detail, expertise, professionalism, and a savvy customer experience for your home inspection look no further than this man. He is a gem in this field and worth every penny."
Recommended by92%of homeowners
Avatar for Professional Home Inspections of New Jersey LLC
Professional Home Inspections of New Jersey LLC
4.6(
87
)

Serving Annandale, NJ and surrounding areas

In business since 1987

Free estimates

Credit card accepted

"It was a terribly cold and rainy day (it had just snowed 6inches).  Despite these conditions, he said he preferred to do the inspections and it proved very fruitful.  He arrived at the house 30min before the inspection time and had already taken countless pics and assessed the exterior prior to our arrival.  We walked around the house, checked out the roof and exteriors, gutters, etc...Spending nearly 90min just on the exterior!
We then moved inside to the basement, and once again, he walked us through every single step and provided great simple explanations to any questions we had.  In total, we spent approximately 4 hrs to finish the inspection on the 3400 sq ft house.
Going back to the rain, he was dead on!  We found a minor leak in one part of the roof which our Seller arranged to fix. This would never have been found on a nice, sunny day!
As promised, 2 days after the inspections, we received a very thorough report and 2 days after that (4d after inspection), the radon report. 
Everything went exactly as anticipated and planned. 
"
.
Chimney Needs Repair
Don't close before you get leaks repaired.
Old Electrical Panels can cause fires.
Recommended by94%of homeowners
Showing 1-10 of 16
Radon Detection and Reduction questions, answered by experts

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

The Annandale, 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.