Mainstream Mechanical CORP

Electrical · Edmonds, WA · License #MAINSMC943K2

Mainstream Mechanical CORP is one of 53 Electrical contractors registered in Edmonds, registered with WA L&I since 2006. Registered longer than roughly 75% of Electrical contractors in Edmonds. Current filings: $4,000 surety bond (continuous).

How confident can you be in Mainstream Mechanical CORP?

Are they licensed, bonded, and insured?

Active license and $4,000 bond on file — checked against WA L&I records, updated daily.

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

Are they who they say they are?

Not yet verified — Mainstream Mechanical CORP 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 Edmonds.

Do they have jobs on record?

Not yet measured — Mainstream Mechanical CORP hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.

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License facts

License type
ELECTRICAL CONTRACTOR
Effective date
May 22, 2006
Expiration date
May 22, 2028
UBI
602574360
Business type
Corporation
Phone
(425) 778-4315
Location
Edmonds, WA 98026

Source: WA L&I contractor registration — checked Sep 27, 2026. Applies to every row above.

Registration is current through May 2028.

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Bond & insurance on file

Bond firmAmountEffectiveExpiration
Lexon Ins Co$4,000Mar 10, 2012Continuous — until canceled
What the bond and insurance requirements mean for homeowners

A surety bond and general liability insurance, filed with the Department of Labor & Industries, are a condition of licensing in Washington; the amount varies by license type. This contractor's current filing shows a $4,000 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
Clifford S ShoemakerMay 22, 2006
Caralyn KeenanMay 22, 2006
Clifford S ShoemakerMay 22, 2006
What is a Electrical contractor licensed to do in Washington?

An electrical contractor in Washington holds an electrical contractor license issued by the Department of Labor & Industries, a separate program from construction contractor registration. Typical work includes service and panel upgrades, branch circuit wiring, lighting, and troubleshooting. Individual electricians are additionally certified through the state's electrician certification program; the license shown here is the business-level license. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 53 Electrical contractors registered in Edmonds.

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Subser doesn't have reviews or star ratings. This page shows Mainstream Mechanical CORP'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 27, 2026. Subser doesn't do star ratings or reviews — just verified records.