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Avatar for Apex Radon Solutions LLC
Apex Radon Solutions LLC
5.0(
11
)

Serving Norfolk, CT and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Apex did a great job explaining the choices I had as far as solutions involving my Radon gas issues. They were friendly and did a very professional job. I would highly recommend them."
Roof penetration for esthetics
Interior Esthetic Package
Exterior Radon Fan
Exterior Radon Fan
Exterior Radon Fan

+3

Response time2 days
24 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Lance Dorfi, LLC
Lance Dorfi, LLC
4.7(
64
)

Serving Norfolk, CT and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Lance Dorfi was proactive, efficient, and professional. They came to every appointment on time and tailored a radon mitigation solution that reduced the levels. I would highly recommend them for radon mitigation!"
Job Site
Response time2 days
33 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)

Serving Norfolk, CT and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"I have worked with many contractors,plumbers,electricians, etc. in my time owning two homes. On here in New England and the other in Pembroke Pines,FL. These gentlemen from rhino radon services were deffinelty personable and proffesional I felt like my home was in good hands with this company. After calling around and having a job scheduled with another mitigation company I was blown off and left with a short deadline. Luckily after speaking with Henri from rhino radon they were able to squeeze me right in your schedule the very next day even though they had two other jobs scheduled they showed up at 5pm and still completed the job to ensure I met my closing date, if your looking for a standout and accommodating radon company I would say look no farther then rhino radon. I was very pleased with the service I recieved. HIGHLY RECOMMENDED


"
Recommended by100%of homeowners
Avatar for John Fox Inspections LLC
John Fox Inspections LLC
5.0(
9
)

Serving Norfolk, CT and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I was looking into buying a home, first time, and had a list of multiple properties. He came to every single one without issue. He's very polite, easy going, and he REALLY knows his field. I highly recommend him. He' punctual, thorough, and the reports were much more detailed than I could've imagined. John sets the bar very high."
Mold
Mold
Thermal Imaging
Roof Inspection
Support Spalling

+2

Response time10 mins
Response rate100%
Avatar for BioClean
BioClean
5.0(
7
)

Serving Norfolk, CT and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"What a surprisingly wonderful experience we had with BioClean. I was able to schedule a same day appointment, and Brian and Dennis showed up exactly on time. Both men are absolute professionals, and are extremely honest! Within minutes of entering the home, they measured the air for particulates, and said that it wasn't a high reading at all. They proceeded to test around our home, and also up in the attic where the air handler is. The thought to look in places we never would have thought to look, but they said everything was actually in good condition. We did figure out that there is moisture in the basement coming from what may be a leaky toilet on the main floor - which we never would have known. The took their time, were very thorough, and made no money from us (with the free estimate coupon they posted here on Angie's List). They could have told us anything, and we would have believed it (and probably paid through the nose). But - these guys truly are wonderful, honest, and professional. If we have more work to do after the plumber comes to fix the leak, we will DEFINITELY call them to do the work. On a scale of 1 to 10, they are a 43."
Before
After
Recommended by100%of homeowners
Radon Detection and Reduction questions, answered by experts

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

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.

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 Norfolk, CT homeowners’ guide to radon detection and reduction services

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