A commercial plumber is a professional who specializes in plumbing services for commercial properties, such as offices, businesses, factories, and other non-residential buildings.

Commercial plumbers typically handle a wide range of plumbing issues specific to commercial properties, including:

1. Pipe Installation and Repair: Installing and repairing pipes for water supply, drainage, and sewage systems.
2. Fixture Installation: Installing and maintaining plumbing fixtures such as sinks, toilets, urinals, and faucets.
3. Water Heater Installation and Repair: Installing and servicing commercial-grade water heaters for hot water supply.
4. Drain Cleaning: Clearing clogs and blockages in drains and sewer lines.
5. Backflow Prevention: Implementing measures to prevent the backflow of contaminated water into the clean water supply.
6. Emergency Repairs: Responding to and resolving urgent plumbing issues to minimize downtime for businesses.
7. Maintenance Services: Conducting regular maintenance to prevent plumbing issues and ensure the smooth operation of plumbing systems.

Commercial plumbers are typically licensed and trained to work on larger and more complex plumbing systems found in commercial buildings. If you need assistance with plumbing issues in a commercial setting, it's important to hire a qualified and experienced commercial plumber to ensure the job is done correctly and meets local building codes and regulations.