Mtz Construction Services LLC
General · Mercer Island, WA · License #MTZCOCS817PZ
Registration expired per WA L&I as of Oct 9, 2021.
Mtz Construction Services LLC is one of 226 General contractors registered in Mercer Island, registered with WA L&I since 2019. Registered longer than roughly 25% of General contractors in Mercer Island. Principals on record since 2019.
How confident can you be in Mtz Construction Services LLC?
Are they licensed, bonded, and insured?
Registration expired per WA L&I as of Oct 9, 2021.
Are they who they say they are?
Not yet verified — Mtz Construction 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 Mercer Island.
Do they have jobs on record?
Not yet measured — Mtz Construction 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.
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Oct 9, 2019
- Expiration date
- Oct 9, 2021
- Suspend date
- Jun 17, 2021
- UBI
- 604462909
- Business type
- Limited Liability Company
- Phone
- (425) 478-1311
- Location
- Mercer Island, WA 98040
Source: WA L&I contractor registration — checked Aug 18, 2026. Applies to every row above.
Registration lapsed Oct 2021 per WA L&I records.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
A $30,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for every general contractor in Washington.
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 |
|---|---|
| Israel Martinez Vallejo | Oct 9, 2019 |
What is a General contractor licensed to do in Washington?
A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. Washington requires a $30,000 surety bond and general liability insurance for this registration. Washington currently lists 226 General contractors registered in Mercer Island.
Looking for reviews of Mtz Construction Services LLC?
Subser doesn't have reviews or star ratings. This page shows Mtz Construction Services LLC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Mtz Construction Services LLC? Claim the listing free. Worked with Mtz Construction Services LLC? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Aug 18, 2026. Subser doesn't do star ratings or reviews — just verified records.