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Avatar for TriState Radon Services, LLC
TriState Radon Services, LLC
5.0(
39
)

Serving Mendham, 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 time11 hrs
47 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Radon Shield LLC
Radon Shield LLC
4.9(
103
)

Serving Mendham, 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 RADATA, LLC
RADATA, LLC
4.2(
200
)

Serving Mendham, 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 Mendham, NJ and surrounding areas

In business since 1970

Emergency services offered

"Where to start? Jeff came early and was already checking out the outside of the house by the time we got there at the scheduled time. He was available on a Saturday and he made it work with ours and his schedule which was nice.
Once we got into the house he encouraged my wife and I to follow him around and listen to his sound and super experienced information and advice about every little facet of the house. He took a lot of photos and notes which we should be receiving a report from soon.
He notified us of things that might need more immediate repair and things that could be done over the course of the next few years. Jeff was a very nice, knowledgeable and friendly guy who just wants to get the job done right and is definitely on your side (the buyer).
I would highly recommend Jeff to anyone I know looking for a home inspection. Not only did his price include the home inspection but he also checked for termites and is in the process of doing the radon inspection in the basement.
Highly recommended and he'll even refer you to a good company for oil tank sweeping (who also doesn't charge an arm and a leg) if you need that as well.
Thanks Jeff!
-David
"
Jeff
.
.
Recommended by96%of homeowners
Avatar for Fresh Air Solutions, LLC
Fresh Air Solutions, LLC
4.7(
99
)

Serving Mendham, 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
Avatar for Mr Home Inspector LLC
Mr Home Inspector LLC
4.7(
14
)

Serving Mendham, 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 Mendham, NJ and surrounding areas

In business since 1987

Free estimates

Credit card accepted

"I chose this company based on Angies list reviews and it did not steer me wrong. His schedule was accomodating and we were able to book a time within just a few days from my call. On the day of the inspection Peter called me and let me know he might be a few minutes late (which I appreciated) but he showed up a few minutes ahead of schedule. He was very thorough and made sure that we understood whatever he was showing us before moving on. He was meticulous and spent most of his time on the exterior and basment as that is where the majority of major issues would be. In this case their happened to be a huge drainage problem. He was very knowledgeable but was careful to state his boundries when dealing with structure problems. He suggested that we pull the permits for any work that was done and to contact a structural engineer. We didnt even get that far because we pulled out the day after his report was sent. The report was completed within 48 hours and was 48 pages long. Obvisouly not all of it was extermely important details, but necessary nonetheless. Peter was also careful not to provide us with opinions, but rather focus on providing us all of the relevant information so that we could make our own informed decision. I'll be calling him again soon when we find another home to purchase.  
"
.
Chimney Needs Repair
Don't close before you get leaks repaired.
Old Electrical Panels can cause fires.
Recommended by94%of homeowners
Avatar for Quality Home Inspection Services LLC
Quality Home Inspection Services LLC
4.8(
17
)

Serving Mendham, NJ and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"I recently used Quality Home Inspection Services as I'm in the process of purchasing a condo. Jamal took the time to explain everything he inspected as he preformed a thorough and detailed inspection of the entire unit, any questions I had were answered immediately with great detail and clear understanding. He provided the written and detailed report very quickly(same day), with pictures, explanations, summary, and any levels of concern or priorities. I would definitely choose Quality Home Inspection Services again in the near future and recommend their services for anyone who’s in need of a thorough and detailed home inspection."
Additional Photos
Additional Photos
Response time8 hrs
Response rate90%
1 neighbors recently requested a quote
Showing 1-10 of 20
Radon Detection and Reduction questions, answered by experts

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

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.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

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).

The Mendham, 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.