Pride Plumbing came out and provided a cost estimate to install a new customer-supplied commercial gas water heater. This would include installing the new water heater, running a new black iron gas supply line from outside to inside the building and adding a gas regulator, installing new water and gas ball shut-off valves, water and electrical connectors, a brass drain valve, atmospheric vent, and thermal expansion tank; ensuring that the unit is properly vented, lighting its pilot, setting it to its appropriate operating temperature, and checking for leaks and proper operation.