Washington contractor
ALPHA PLUMBING LLC
First registered in Washington on March 7, 2022
- License number
- ALPHAPL782DG
- UBI
- 604559708
- Trade
- Plumbing(all plumbing contractors in Washington)
- L&I license type and specialty
- PLUMBING CONTRACTOR · RESIDENTIAL
- City
- Bothell, WA(all contractors in Bothell)
- Phone
- (425) 381-0059
Current verification
- Found: No Attorney General complaint records found
- Review: Registration is not currently active
- Review: Registration appears to be expired
- 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
- EXPIRED
- Effective date
- March 7, 2022
- Expiration date
- March 7, 2026
- Suspension date
- March 17, 2025
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, 604559708. 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.
- ALPHA BACKFLOW & PLUMBINGRE-LICENSED
License ALPHABP806DC · CONSTRUCTION CONTRACTOR · March 3, 2020 to March 3, 2022
L&I describes this status as "relicensed under another name, structure, or specialty." Relicensing is common: a business is given a new license number when it changes its legal structure, name, or specialty.
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
L&I does not publish bond records for contractors with EXPIRED status.
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
L&I does not publish liability insurance records for contractors with EXPIRED status.
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.
- DIETRICH, ERIC ROBERTSince March 7, 2022
- DIETRICH, HOLLY ELIZABETHSince March 7, 2022
- DIETRICH, RYAN EDWARDSince March 7, 2022
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: ALPHA PLUMBING in Bothell. Complaints filed under another name or city are not included.
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 ALPHAPL782DG).