Additional Information

 GES has designed and installed radon mitigation and vapor intrusion mitigation systems for large commercial buildings and schools in Vermont. GES brings over 18 years of experience and is fully certified and licensed through the National Radon Proficiency Program and is an active member of the American Association of Radon Scientists and Technologists.  

Most radon can be mitigated with a sub slab depressurization system (sub slab vacuum system). You should only hire a National Radon Proficiency Program (NRPP) certified contractor with a long history of installations throughout Vermont and New Hampshire. Jay Gonyaw'S NRPP license number is 105419RMT.


What is Radon?

Radon is a colorless, odorless radioactive gas that can cause lung cancer and does not discriminate between young & old. It develops from the breakdown of radium in the soil and bedrock located throughout the US and worldwide. Radon is commonly expressed as picocuries per liter of air (pCi/l) and the EPA recommends taking action to mitigate levels found in homes that are greater than 4.0 pCi/l. 

Radon decays into radioactive particles that get trapped in your lungs and as the radioactive particles continue to breakdown releasing radiation, that breakdown can damage the DNA in your lung tissue. If the tissue does not repair properly it can lead to lung cancer. Radon is said to be the second leading cause of lung cancer in the US and is responsible for over 20,000 deaths every year. 

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 Customer Testimonial

“I am very pleased about the service I received from Jay. He listened to my concerns and matched the radon removal system to the exterior of our house.” – Mr. Nye

What is radon

For further information contact 

Jay Gonyaw at 802-673-4039

Other services


Water Treatment

Is your water safe to drink?  GES can help with all of your needs to treat your water to make it safe for you and your family.

Asbestos Inspections

For all demolition and renovations, an inspection is required of the building materials.  GES can help with this process.

Phase I Environmental Site Assessments

During a bank transaction for a commercial or industrial building or property, a Phase I is required to protect against any environmental issues that might not be visible to the non-professional.  GES will review the site, as well as conduct a site visit to look for existing or potential problems that may impact the property. 

UST Closures

During the closure and removal of an underground storage tank, GES is on site testing the soils form contamination due to a leaking tank, piping, or previous drips and spills associated with the filling process.  

Industrial and Commercial Health and Safety Programs

Everyone knows how important safety is at the work place and how costly injuries are, not to mention the impact on the people who get injured.  GES specialized in helping the facility meet their training needs as well as the development of plans such as Lock-out-tag-out, Global Harmonizing Systems, Hazardous Communication Systems, RECRA and HAZWOPER training.