Greatline is a leader in Low voltage applications and installations. Since 1992, we’ve been providing high quality and efficient service to clients. We are a union contractor and proud of our IBEW Certified Electricians. The best trained in the business. We are dedicated to clean, efficient work, superior customer service and the highest quality solutions solving our client’s security and low voltage needs.

Any Size, Any Standard

Our experienced designers source through hundreds network variations to assure you get precisely the network you need.

Greatline People

Greatline IS Customer Service. You will notice the difference. Our technicians are clean and efficient, our project managers accomplished and clear. You will never feel out of the loop. You will always be heard.