The details on Thaiss Plumbing & Sprinklers
- WA L&I registration
- THAISPS055NM
- Registration checked
- July 27, 2026
- Registered since
- 1995
- Expires
- August 2026
- Contractor bond
- $30,000 · Western Surety Co
- Liability insurance
- $1,000,000 · AMGUARD INSURANCE COMPANY
- Insurance through
- January 2027
- Primary trade
- Plumbing
- L&I specialty
- GENERAL
- Service area
- Spokane
- Phone
- (509) 487-2703
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Questions worth asking Thaiss Plumbing & Sprinklers
Is Thaiss Plumbing & Sprinklers licensed in Washington?
Thaiss Plumbing & Sprinklers holds Washington State (L&I) contractor registration THAISPS055NM, expiring August 2026. 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 $30,000 contractor bond (Western Surety Co) and $1,000,000 of liability insurance with AMGUARD INSURANCE COMPANY through January 2027. Ask for proof of bond and current insurance before work starts.
What areas does Thaiss Plumbing & Sprinklers serve?
Spokane. Service areas change, so confirm they cover your address when you call.
How did Thaiss Plumbing & Sprinklers end up on this page?
Thaiss Plumbing & Sprinklers 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. Thaiss Plumbing & Sprinklers rates 3.0 out of 5 on Google across 4 reviews, and this page links straight to those reviews so you can read them for yourself.