Plumbers handle tasks such as repairing leaks, unclogging drains, installing or repairing water heaters, fixing toilets, maintaining pipes, and installing fixtures like sinks, faucets, and showers.
Yes, many plumbers are trained to work on both residential and commercial plumbing systems, though some specialize in one area.
Yes, most plumbers can repair or replace water heaters and boilers. Some may also install energy-efficient systems or provide maintenance services.