Mast Builders LLC

General · Pasco, WA · License #MASTBBL819RK

Mast Builders LLC is one of 1,192 General contractors registered in Pasco, registered with WA L&I since 2019. Registered longer than roughly half of General contractors in Pasco. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Dec 12, 2026.

How confident can you be in Mast Builders LLC?

Are they licensed, bonded, and insured?

Active license, $30,000 bond and $1,000,000 liability on file — checked against WA L&I records, updated daily.

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

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Not yet verified — Mast Builders LLC hasn't claimed this listing. Own this business? Claim it free.

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No endorsements yet from other licensed contractors in Pasco.

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License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Dec 12, 2019
Expiration date
May 28, 2027
UBI
604283072
Business type
Limited Liability Company
Phone
(509) 948-7256
Location
Pasco, WA 99301

Source: WA L&I contractor registration — checked Nov 11, 2026. Applies to every row above.

Registration is current through May 2027.

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Bond & insurance on file

Bond firmAmountEffectiveExpiration
Lexon Ins Co$30,000Jul 8, 2025Continuous — until canceled
Western Surety Co$30,000May 27, 2025Canceled Jul 19, 2025
HARTFORD INSURANCE CO THE MIDWEST$12,000Dec 12, 2021Canceled Dec 14, 2022
Navigators Ins Co$12,000Dec 12, 2019Canceled Dec 12, 2021
Western Surety Co$12,000Dec 12, 2022May 28, 2025
Insurance companyAmountAgencyEffectiveExpiration
Atlantic Cas Ins Co$1,000,000Harvey Insurance AgencyDec 12, 2019Dec 12, 2026
What the bond and insurance requirements mean for homeowners

To register as a general contractor in Washington, a business must file a $30,000 surety bond with the Department of Labor & Industries. 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

NameStart date
Ira A MastDec 12, 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. As a condition of registration, contractors in this category file a $30,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 1,192 General contractors registered in Pasco.

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Subser doesn't have reviews or star ratings. This page shows Mast Builders 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 Nov 11, 2026. Subser doesn't do star ratings or reviews — just verified records.