ContractorHistory

Washington contractor

DMB BACKFLOW SERVICES LLC

First registered in Washington on April 1, 2011

License number
DMBBABS894JL
UBI
603079079
Trade
Landscaping(all landscaping contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · IRRIGATION/SPRINKLING SYSTEMS
City
WALLA WALLA, WA(all contractors in Walla Walla)
Phone
(509) 520-8097

A newer license record under the same UBI is on file: DMB IRRIGATION SERVICES LLC, license DMBIRIS753N9, ACTIVE, effective August 29, 2025. See Related licenses below.

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
April 1, 2011
Expiration date
April 1, 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, 603079079. 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.

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.

  • HERRES, ALICIA CSince April 1, 2011
  • HERRES, DANIEL JOSEPHSince April 1, 2011
  • HERRES, MATTHEW DSince May 8, 2023

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: DMB BACKFLOW SERVICES in WALLA WALLA. 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

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 DMBBABS894JL).