About Us

In five years, Cornerstone has earned the reputation for excellence in response, service and quality. Our loyal customers choose Cornerstone for our excellent work, reliable follow through and commitment to customer service.

We promise to always give your request our immediate attention. Our experienced office staff is trained to ask the necessary questions to determine the level of urgency and dispatch the appropriate service crew.

Founder John Croteau has built Cornerstone on his handshake and his reputation for honesty, fairness and integrity. These same values are wired into every Cornerstone project. Call Cornerstone and let us light up your day.

We answer calls in NH and MA serving all the communities in Rockingham and Essex Counties. You can reach us at 1-603-898-1911 or info@CornerstoneElectrical.com