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Top-Rated Radon detection and reduction specialists in Dennis Port - Updated Nov 2026

Avatar for Indoor Environmental
Indoor Environmental
5.0(
56
)
Radon Gas - Testing

Serving Dennis Port, MA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Everything went very well from meeting to quote the job through to final certification. The crew was professional and took great care to cover all carpets going through the house to the attic."
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Dennis Port, MA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"It went fantastic. Scheduling wise the gentlemen at Rhino Radon were quick to respond to our inquiry via there website were I filled out a online questionnaire. Once speaking to Henry about the specifics of my home via phone and letting him no my situation. They were prompt in scheduling a date for installation to assure my radon problem didn't delay my ability to sell the home. From the time I filled out there questionnaire on there website till the system was installed and fully operational, all took place In one weeks time. I no from experience that these days the attentiveness and service Rhino Radon provided me can be difficult to find. Having recently just finished the process of building my own home in Malden and dealing with a wide range of company's and workers. It's the little things that stand out like personal treatment,responding quick to inquiries or concerns and of course taking the time to do things properly the first time around while still treating the home with respect. Rhino Radon came recommended to me via a friend and I couldn't thank them enough for steering me in the right direction for my radon mitigation needs. I would like to do the same to anyone currently searching for a radon company. If you want the job done right and a pleasant experience, look no further for your radon needs then Rhino Radon Services.


"
Recommended by100%of homeowners
Precision Home Inspection Services Inc
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Dennis Port, MA and surrounding areas

In business since 1999

At Precision Home Inspection Services, our mission is to provide every customer with: \nAn objective diagnostic evaluation of all mechanical, electrical, heating, plumbing, and structural features. \nAn in-home consultation covering the home inspection results. \nA comprehensive report of the home's strength's, and potential deficiencies. \nThe peace-of-mind and reassurance that the home being inspected is sound and does not have any surprise problems. \nThe professionalism and precision you can trust to assist with your home-buying decision. \n

Radon Detection and Reduction FAQs, answered by experts

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.

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.

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.

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).

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The Dennis Port, MA homeowners’ guide to radon detection and reduction services

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