Diamond Concrete LLC
Concrete · Auburn, WA · License #DIAMOCL829MT
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State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
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License facts
Diamond Concrete LLC is one of 29 Concrete contractors registered in Auburn, registered with WA L&I since 2018. Registered longer than roughly 75% of Concrete contractors in Auburn. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Jun 22, 2027.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Sep 7, 2018
- Expiration date
- Sep 11, 2028
- UBI
- 604277974
- Business type
- Limited Liability Company
- Phone
- (253) 353-1826
- Location
- Auburn, WA 98092
Source: WA L&I contractor registration — verified Aug 14, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| NORTH RIVER INSURANCE COMPANY THE | $30,000 | Aug 15, 2024 | Continuous — until canceled |
| Navigators Ins Co | $6,000 | Jun 13, 2020 | Canceled Jun 15, 2022 |
| NORTH RIVER INSURANCE COMPANY THE | $12,000 | Jun 13, 2024 | Aug 15, 2024 |
| NORTH RIVER INSURANCE COMPANY THE | $6,000 | Jun 13, 2022 | Jun 13, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Richmond National Insurance Co | $1,000,000 | Murillo's financial center inc | Jun 22, 2026 | Jun 22, 2027 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000). This contractor's current filing shows a $30,000 bond.
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
| Name | Start date |
|---|---|
| Samuel Guzmanvaldez | Jul 27, 2018 |
| Juancarlos Valdez | Jul 27, 2018 |
What is a Concrete contractor licensed to do in Washington?
A concrete specialty contractor is registered with WA L&I to form, pour, and finish concrete — foundations, slabs, driveways, sidewalks, and similar flatwork or structural concrete. The registration covers concrete work only. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 29 Concrete contractors registered in Auburn.
Other Concrete contractors in Auburn, WA
Dean's Concrete Installatn LLC
Concrete · Auburn, WA
License #DEANSCI818NA · $15,000 bond
Elohim Construction LLC
Concrete · Auburn, WA
License #ELOHICL764OK · $30,000 bond
Home Town Concrete
Concrete · Auburn, WA
License #HOMETC*994MS · $30,000 bond
J & P Concrete LLC
Concrete · Auburn, WA
License #JPCONPC887QZ · $15,000 bond
Mark Morris INC
Concrete · Auburn, WA
License #MARKMI*999Q9 · $15,000 bond
Medina's Company Concrete
Concrete · Auburn, WA
License #MEDINCC856DB · $15,000 bond
NW Concrete LLC
Concrete · Auburn, WA
License #NWCONCL811RD · $15,000 bond
O&t Concrete LLC
Concrete · Auburn, WA
License #OTCONCL835JO · $15,000 bond
Browse the directory
Built from Washington State L&I public records, updated Aug 14, 2026. No star ratings or reviews — verification only.