Dmb Backflow Services LLC

Irrigation/Sprinkling Systems · Walla Walla, WA · License #DMBBABS894JL

Registration expired per WA L&I as of Apr 1, 2025.

What do these mean?

Dmb Backflow Services LLC is one of 5 Irrigation/Sprinkling Systems contractors registered in Walla Walla, registered with WA L&I since 2011. Principals on record since 2011.

How confident can you be in Dmb Backflow Services LLC?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Apr 1, 2025.

Source:License facts on this pageVerify at WA L&I

Are they who they say they are?

Not yet verified — Dmb Backflow Services LLC hasn't claimed this listing. Own this business? Claim it free.

Do other pros stand behind them?

No endorsements yet from other licensed contractors in Walla Walla.

Do they have jobs on record?

Not yet measured — Dmb Backflow Services LLC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.

Subser doesn't do star ratings or reviews — just verified records. What do these mean?

License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Apr 1, 2011
Expiration date
Apr 1, 2025
UBI
603079079
Business type
Limited Liability Company
Phone
(509) 520-8097
Location
Walla Walla, WA 99362

Source: WA L&I contractor registration — checked Sep 28, 2026. Applies to every row above.

Registration lapsed Apr 2025 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

Registration as a specialty contractor in Washington requires a $15,000 surety bond on file with the Department of Labor & Industries; the general contractor requirement is $30,000.

The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.

Principals

NameStart date
Daniel Joseph HerresApr 1, 2011
Alicia C HerresApr 1, 2011
Matthew D HerresMay 8, 2023
What is a Irrigation/Sprinkling Systems contractor licensed to do in Washington?

Irrigation contractors design, install, and repair lawn and landscape sprinkler systems — supply lines, valves, heads, drip zones, and controllers. Seasonal work such as spring start-ups, winterization, and leak repair is a large share of the trade. A $15,000 surety bond and general liability insurance, filed with WA L&I, are required for this registration. Washington currently lists 5 Irrigation/Sprinkling Systems contractors registered in Walla Walla.

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Subser doesn't have reviews or star ratings. This page shows Dmb Backflow Services LLC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.

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Built from Washington State L&I public records, updated Sep 28, 2026. Subser doesn't do star ratings or reviews — just verified records.