What pipe do you have now?
Judging old pipe starts with seeing it. Check the exposed runs under your sinks and beside the water heater, and make a note of the material and its condition.
Then tell us roughly when the building went up and whether any pipe was swapped earlier. From there we can decide together if a single zone or the whole home is the better call.
Inside the walls
Openings about the size of a hand are normally all the access we need for the new runs. Every line is hooked up and held under test pressure before the openings are closed.
Often the first clue that pipe is failing is a leak in an odd place, which is why our leak detection page pairs well with this one. The home page shows every service.