Mainline Plumbing INC

Plumbing Specialty · Bremerton, WA · License #MAINLPI825K1

Re-licensed per WA L&I — this registration was replaced.

WA L&I status: RE-LICENSED

What do these mean?

Mainline Plumbing INC is one of 14 Plumbing Specialty contractors registered in Bremerton, registered with WA L&I since 2018. Registered longer than roughly 25% of Plumbing Specialty contractors in Bremerton.

How confident can you be in Mainline Plumbing INC?

Are they licensed, bonded, and insured?

Registration not currently active per WA L&I.

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

Are they who they say they are?

Not yet verified — Mainline Plumbing INC 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 Bremerton.

Do they have jobs on record?

Not yet measured — Mainline Plumbing INC 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
May 21, 2018
Expiration date
Dec 16, 2022
UBI
604134398
Business type
Corporation
Phone
(360) 337-1117
Location
Bremerton, WA 98312

Source: WA L&I contractor registration — checked Nov 13, 2026. Applies to every row above.

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Bond & insurance on file

Bond firmAmountEffectiveExpiration
Western Surety Co$6,000Jun 15, 2017Canceled Aug 3, 2024
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).

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.

What is a Plumbing Specialty contractor licensed to do in Washington?

A plumbing specialty contractor registration with WA L&I covers plumbing installation and repair work. Individual plumbers in Washington are additionally certified through a separate state plumber-certification program; the contractor registration shown here is the business-level registration. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 14 Plumbing Specialty contractors registered in Bremerton.

Looking for reviews of Mainline Plumbing INC?

Subser doesn't have reviews or star ratings. This page shows Mainline Plumbing INC'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 13, 2026. Subser doesn't do star ratings or reviews — just verified records.