In the state of Washington, the plumbing trade is regulated, which is important to the health and safety of all consumers. There are a handful of certifications within the plumbing trade which have different requirements and allow a person to perform work at different levels. The law representing these certifications can be found at RCW 18.106.
At Your Service Plumbing has chosen to serve homeowners; therefore, we only have employed plumbers who have obtained or will obtain a residential certification. We do not employ certified plumbers on our team to work on commercial buildings. However, we have a couple of great referral partners we can recommend.