The details on Thaiss Plumbing & Sprinklers
- WA L&I registration
- THAISPS055NM
- Registration checked
- September 7, 2026
- Registered since
- 1995
- Expires
- August 2028
- 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
- Registered principal
- THAISS, STEVEN F · since 1980
- Service area
- Spokane
- Phone
- (509) 487-2703
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Thaiss Plumbing & Sprinklers
Does Thaiss Plumbing & Sprinklers hold a Washington contractor registration?
Thaiss Plumbing & Sprinklers is registered with Washington State L&I under number THAISPS055NM, expiring August 2028. Checked against Washington's own record on September 7, 2026, and this page links straight to it. On file alongside it: a $30,000 contractor bond (Western Surety Co) and $1,000,000 of liability insurance with AMGUARD INSURANCE COMPANY through January 2027. Ask them to send the bond and insurance certificates over before the first day on site.
Where does Thaiss Plumbing & Sprinklers work?
Spokane. Service areas change, so confirm they cover your address when you call.
How did Thaiss Plumbing & Sprinklers end up on this page?
Every plumbing business licensed in the Spokane area gets a page here, and Thaiss Plumbing & Sprinklers is one of them. That registration is checked against Washington's record, and the date of the check is on this page for you to weigh. Thaiss Plumbing & Sprinklers rates 2.3 out of 5 on Google across 3 reviews, and this page links straight to those reviews so you can read them for yourself.