About

Providing comprehensive water solutions to Northern New York homeowners, businesses and municipalities.

O’Rourke Groundwater Developing, LLC, is a Woman Owned Business, locally operated by Maryann and Kevin O’Rourke, and has proudly served Northern New York since July 1989. At the time a second-generation business, we have more than 40 years of experience and proven results. Serving Jefferson, St. Lawrence, Lewis, Franklin, Oswego, Herkimer, and Oneida Counties, we provide a variety of specialty services for all of your well drilling, water treatment, and geothermal needs.

We Know the Industry – and Can Find the Best Solution for You
•   There isn’t a cookie cutter solution. We work to install water systems to satisfy the individual needs of every homeowner, business owner, and municipality.
•   We are the only well water contractor in the region to offer hydro-flushing to help increase well yields (gallons per minute).
•   Geothermal is a specialty, having installed our first heat pump in 1979 and staying current with its advances over time.
•   We are proud to be NYSERDA Certified in geothermal and ground source heat pump systems to bring you the benefits of New York’s Home Energy Efficiency Program.
•   We are also proud to be a member of the International Ground Source Heat Pump Association.


We Are Committed to You
•   Delivering responsive and effective solutions to your inquiries is a priority.
•   We provide upfront and honest cost analysis of the work to be performed.

Contact Us Today for All of Your Well Drilling, Water Treatment and Geothermal Needs