Washington contractor
THAISS PLUMBING & SPRINKLERS
Registered in Washington for 5 years
- License number
- THAISPS799O1
- UBI
- 601650273
- Trade
- Plumbing(all plumbing contractors in Washington)
- L&I license type and specialty
- PLUMBING CONTRACTOR · JOURNEY LEVEL
- City
- SPOKANE, WA(all contractors in Spokane)
- Phone
- (509) 487-2703
Current verification
- Found: Active Washington contractor registration
- Found: Current bond record found
- Found: Current liability insurance record found
- Found: No Attorney General complaint records found
- Review: 1 other license record under the same UBI
From the state records below; each section shows its source and when it was last synced.
Registration
- Status
- ACTIVE
- Effective date
- September 1, 2021
- Expiration date
- September 1, 2027
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Related licenses
One other license number is registered under the same UBI, 601650273. A UBI identifies one business with the state; a business may hold more than one license, renew under a new number, or register a new license after an earlier one closed.
License THAISPS055NM · CONSTRUCTION CONTRACTOR · August 14, 1995 to August 14, 2028
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- Western Surety Co
- Bond number
- 67544218
- Amount
- $6,000
- Effective date
- August 29, 2025
- Expiration date
- Until canceled
- Bond company
- Hudson Insurance Company
- Bond number
- 10126561
- Amount
- $6,000
- Effective date
- August 30, 2021
- Expiration date
- Until canceled
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- AMGUARD INSURANCE COMPANY
- Policy number
- STBP551324
- Coverage amount
- $1,000,000
- Effective date
- January 29, 2024
- Expiration date
- January 29, 2027
L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.
Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 9, 2026.
People
Principals L&I lists for this license.
- THAISS, STEVEN FRANKSince August 31, 2021
Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Attorney General complaints
No Attorney General complaint records found.
Matched on business name and city: THAISS PLUMBING SPRINKLERS in SPOKANE. Complaints filed under another name or city are not included.
One other registered contractor shares this business name and city: THAISS PLUMBING & SPRINKLERS (THAISPS055NM, ACTIVE). Complaints are matched by business name and city, so any complaint records shown here also appear on those pages. The records do not say which of these contractors a complaint was about.
A complaint record does not establish that the business violated the law.
Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced October 9, 2026.
Record history
Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.
No changes recorded since our records began on October 6, 2026.
Sources
- L&I Contractor License Data - General, Washington State Department of Labor & Industries
- L&I Contractor License Data - Bond, Washington State Department of Labor & Industries
- L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries
- L&I Contractor License - Principal Data, Washington State Department of Labor & Industries
- Attorney General Consumer Complaints, Washington State Attorney General's Office
Record last synced October 7, 2026.
Check this record against the state directly on L&I's Verify a Contractor page (search by license number THAISPS799O1).