Flowmaster Plumbing
Company Overview
Washington state certified, bonded, and insured. We provide reliable and expert plumbing services. We prioritize high-quality craftsmanship!
Our commitment to high-quality work and professionalism has been the foundation of our success from the start!
I proudly own and operate Flowmaster Plumbing INC, where my craftsmanship is a source of pride. Ensuring clean and 100% quality work is my main focus. I was trained in a traditional manner, gaining hands-on experience with the best tradesmen in Washington.
I usually operate solo. For larger projects, my plumbing assistants are always certified journeymen or qualified apprentices from Washington state.
Business Services
- Plumbing inspection
- Water heater installation
- Water heater repair
Business Location & Hours
Mon: | Open 24 hours |
Tue: | Open 24 hours |
Wed: | Open 24 hours |
Thu: | Open 24 hours |
Fri: | Open 24 hours |
Sat: | Open 24 hours |
Sun: | Open 24 hours |
Recommended Customer Reviews

A+. We have worked with Lawrence now on 3 different occasions. First was to plumb a dual sink, converting the wall from one to two with limited space, then installing/plumb the vanity, sinks, drains and new decorative faucets. The second was to install, seat and plumb a bathtub including a new valve/cartridge, drains, and fixtures. Lastly we needed help with a new valve/cartridge in our master shower. The first project seemed pretty technical because there was no room for error. The vanity had to line up perfectly around each sink, drain and water lines and he had to go from copper to PEX. The last project today was an emergency because I made a mistake when installing the valve and he had to fix my work to restore hot water.
We've always been happy with the end result and as long as Lawrence is around he will always be our first line of defense when my head becomes too large and I bite off more than I can chew.
Quality work and very fairly priced.

Lawrence recently installed four sinks at my home after I replaced my countertops. Lawrence was great to work with. He was quick to come give me a bid, provided a fair and competitive price, and did not try to up sell me with things I did not need. On install day, his arrival was punctual and he worked efficiently. Overall, he was respectful of my time and my home and he took pride in his work. I will be calling Lawrence for future plumbing work. Thanks, Lawrence!

Lawrence was so informative and very helpful when he came to repair two toilets. He went above and beyond to provide amazing customer service! I will definitely be using him again!
Thank you! Amazing experience, totally recommend!