What steps should I take to repair a water main in my house that is leaking?

To repair a leaking water main in your house, you should first turn off the water supply to the house. Next, locate the leak and assess the extent of the damage. Depending on the severity of the leak, you may need to either patch the pipe or replace a section of it. You can use pipe repair clamps or epoxy putty to temporarily fix small leaks. For larger leaks, you may need to cut out the damaged section of the pipe and replace it with a new piece. It is recommended to consult a professional plumber for complex repairs.