FAQ Commercial Plumbing – Are plumbers in Washington required to be certified?
Yes. In Washington State, the plumbing trade is regulated to protect the health and safety of homeowners. There are different certification levels, each allowing plumbers to perform specific types of work under state law (RCW 18.106).
At Your Service Plumbing focuses exclusively on residential service, which means:
- Our plumbers are certified—or actively working toward certification—in residential plumbing.
- We specialize in serving homeowners, not commercial or industrial properties.
- If you need commercial plumbing, we’re happy to recommend our trusted referral partner, Stop, Inc – https://www.stopinc.com/
If you have questions, call or text At Your Service Plumbing at (253) 448-8178 or request service online.
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