The details on Thaiss Plumbing & Sprinklers
- WA L&I registration
- THAISPS799O1
- Registration checked
- July 27, 2026
- Registered since
- 2021
- Expires
- September 2027
- Contractor bond
- $6,000 · Western Surety Co
- Liability insurance
- $1,000,000 · AMGUARD INSURANCE COMPANY
- Insurance through
- January 2027
- Primary trade
- Plumbing
- L&I specialty
- JOURNEY LEVEL
- Service area
- Spokane
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Thaiss Plumbing & Sprinklers
Is Thaiss Plumbing & Sprinklers licensed in Washington?
Thaiss Plumbing & Sprinklers holds Washington State (L&I) contractor registration THAISPS799O1, expiring September 2027. 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 (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.