How do I repair a burst pipe?

First, shut off the main water valve immediately to stop the flooding. Open all faucets to drain remaining water from the pipes. For a temporary fix, use a pipe repair clamp or rubber patch with a hose clamp to stop the leak. For small pinhole leaks, epoxy putty can provide a temporary seal. Call a plumber for a permanent repair, which involves cutting out the damaged section and replacing it with new pipe. Document the damage for insurance if needed.