Expert electrical installation, service and repair is Cornerstone Electrical’s specialty. We provide everything you need for commercial buildings, industrial complexes and construction projects for residential or commercial buildings.

Commercial and Industrial

  • Parking Lot Lighting
  • Wiring and re-wiring for manufacturing, retail, office, industrial, warehouse, schools and hospitals
  • Phone, Cable and Data Systems
  • Fire and Smoke Alarm Systems

Residential Construction or Remodeling

We’re on budget and on time to keep the general contractor on schedule and ensure a happy homeowner. We can advise the homeowner and assist with lighting plans for any residential new construction, renovation or remodeling.

For immediate service or to discuss your project, please call 1-603-898-1911 or email

For service or repair of your residential electrical system, please contact our Mister Sparky division at (603) 870-9500. Or visit Mister Sparky to learn more about our commitment to residential homeowners.

For immediate service, call 1-603-898-1911.