Pre-existing conditions are the customer’s responsibility. There are too many pre-existing conditions to list every one. Some common ones are faulty shutoff valves, old galvanized pipe, old vent flue, etc. If there is old, out of code or otherwise insufficient plumbing existent and additional work is required, the additional expense will be the sole responsibility of the property owner. We will not complete work without correcting any code violations directly related to the work being performed. Any additional expense is solely the customer’s responsibility. The code improvements are required by applicable state and local codes and ordinances and are performed to protect you.