Our Work
Featured Geothermal Projects
From Harvard University to private residences, GDNE has delivered reliable geothermal solutions for New England's most demanding projects since 1997.
Harvard University
Multi-phase geothermal installation for campus buildings at one of the world's leading universities. Standing column wells were selected for optimal efficiency in the Cambridge bedrock geology.
Nichols College
Closed loop vertical system for academic facilities, replacing aging conventional HVAC with modern geothermal technology for reduced operating costs and carbon footprint.
Regional Medical Center
Mission-critical geothermal installation for a healthcare facility requiring 24/7 climate control reliability with redundant system design to ensure uninterrupted patient care.
Town of Groton
Geothermal systems for multiple municipal buildings including the town hall and public library, contributing to LEED certification and demonstrating community leadership in sustainable energy.
Custom Home — Merrimack Valley
New construction residential installation featuring a standing column well providing both geothermal heating/cooling and domestic water supply for a 4,200 square foot custom home.
Office Complex Retrofit
Complete HVAC conversion from conventional oil heating to closed-loop geothermal for a 12,000 square foot office complex, reducing annual energy costs by over 60%.
Historic Home Retrofit
Converted a historic New England home from oil heat to geothermal with minimal disruption to the property and historic character, while dramatically reducing heating costs.
Private School Campus
Multi-phase campus-wide geothermal installation for a private school, designed to allow phased construction aligned with the academic calendar.
Service Area
Serving All Six New England States
GDNE provides geothermal drilling services throughout Massachusetts, Connecticut, New Hampshire, Vermont, Rhode Island, and Maine.
Have a Project in Mind?
Tell us about your project and we'll provide a free, no-obligation estimate.