Cornerstone Services, LLC Email Format

Facilities ServicesNew York, United States11-50 Employees

Cornerstone Services, LLC is a family-operated facilities services provider based in Norwood, New York, serving St. Lawrence and Franklin Counties. Founded in 2005, the company began as a small HVAC operation and has grown into a multi-faceted firm that includes plumbing, plus HVAC service and installations, and expanded into commercial work and construction. It supports a regional footprint through residential and commercial projects and participates in NYSERDA specialty programs.

The company holds a range of industry affiliations and certifications, including BPI Accredited Contractor and EPA backflow tester and installer, along with NYSERDA energy manager and energy auditor credentials, and dealer/installer designations from manufacturers. These qualifications enable Cornerstone to address heating, cooling, plumbing, and energy-efficiency needs for projects across its service area.

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