Yes, calling 811 is always required by law before any excavation begins. Public utility locating through 811 is the first and most important step in protecting underground infrastructure and keeping jobsites safe.
However, it’s important to understand what 811 does, and what it does not do.
When you call 811, public utility owners are notified and will mark their publicly owned utilities up to the point of service. This typically includes utilities such as public gas, electric, water, and communications lines. What 811 does not cover are private utilities, undocumented lines, or utilities beyond the meter.
That’s where GLS Utility comes in.
GLS Utility complements the 811 process by locating private utilities, unmapped lines, and other subsurface features that 811 is not responsible for marking. Using advanced technology like electromagnetic locating and Ground Penetrating Radar (GPR), GLS provides a more complete picture of what’s underground.
Think of it this way:
811 meets the legal requirement. GLS reduces the risk.
By calling 811 first and then partnering with GLS Utility, property owners, contractors, and municipalities can move forward with confidence, minimizing surprises, preventing costly damages, and keeping people safe.
Calling 811 is mandatory. Calling GLS is smart.