Cornerstone Services is a family operated business serving St. Lawrence and Franklin Counties. We provide commercial and residential plumbing, heating, ventilation, air-conditioning, gas conversions, and energy saving services.
- BPI (Building Performance Institute) Accredited Contractor
- Home and Business Natural Gas Installation and Inspection
- EPA (Environmental Protection Agency) Backflow Tester and Installer
- NYSERDA Certified Energy Manager and Energy Auditor
- Certified Rinnai Dealer
- Certified TRANE Comfort Specialist
- Fujitsu Heating & Cooling Systems
- Certified Geothermal Design and Installation
- Uponor Designer- Installer
- WardFlex Designer-Installer
I would highly recommend Cornerstone Plumbing and Heating for all your needs in the North Country. Thanks to Andy and Barry, the installers .Very professional and courteous. ~ Mary Lee Ten Eyck
Cornerstone Services has participated in the construction of many regional building projects. Whether it’s a commercial or residential project, Cornerstone brings our years of experience and commitment with a high level of excellence to the installation and completion of your project.