10 Best Commercial Plumbers in Charleston, SC

Commercial plumbers serving Charleston

Before you hire

  • Check the license. Look the company up on your state or city licensing board and confirm the license is active for this kind of work.
  • Ask for proof of insurance. Liability coverage, and workers’ compensation if a crew will be on site.
  • Get it in writing. A written estimate should list the scope, materials, labor, permits, cleanup and how changes are priced.
  • Compare more than one quote. Two or three written quotes for the same scope make it easier to spot gaps.
  • Ask who does the work. Find out whether the company’s own staff or a subcontractor will be on the job.
  • Confirm the warranty. Ask what parts and labor are covered, for how long, and get it in writing.

Frequently asked questions

How is commercial plumbing different from residential

Commercial plumbing involves larger pipe sizes, more complex systems, code requirements specific to business types, grease traps, backflow preventers, and often requires specialized licensing

Do restaurants need special plumbing

Yes. Restaurants require grease traps (cleaned monthly), separate waste lines, commercial dishwasher connections, floor drains, and regular backflow testing. Health department inspections verify compliance

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