The details on United Plumbing
- WA L&I registration
- UNITEP*791RN
- Registration checked
- July 27, 2026
- Registered since
- 2022
- Expires
- January 2028
- Contractor bond
- $6,000 · American Contractors Indem CO
- Liability insurance
- $1,000,000 · American Casualty Insurance Co
- Insurance through
- November 2026
- Primary trade
- Plumbing
- L&I specialty
- JOURNEY LEVEL
- Service area
- Spokane area
- Phone
- (509) 922-5000
- Website
- unitedplumbingcorp.com
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking United Plumbing
Is United Plumbing licensed in Washington?
United Plumbing holds Washington State (L&I) contractor registration UNITEP*791RN, expiring January 2028. We verified it against the state record on July 27, 2026, and you can check the same number on Washington's contractor lookup in about a minute. L&I also lists a $6,000 contractor bond (American Contractors Indem CO) and $1,000,000 of liability insurance with American Casualty Insurance Co through November 2026. Ask for proof of bond and current insurance before work starts.
What does United Plumbing do?
United Plumbing lists these plumbing services: general plumbing, water heater installation, dishwasher installation, fixture and water line repair, repiping. Ask which of them the crew self-performs and which they sub out.
What areas does United Plumbing serve?
Spokane area. Service areas change, so confirm they cover your address when you call.
How did United Plumbing end up on this page?
United Plumbing is licensed and working in the Spokane area — that's the whole bar for a page here. We check that registration against the state's own record and date the check on this page, so you can see for yourself how current it is. United Plumbing rates 3.8 out of 5 on Google across 17 reviews, and this page links straight to those reviews so you can read them for yourself.