Mark's Plumbing Service INC

Plumbing Specialty · Everett, WA · License #MARKSPS883C9

Registration expired per WA L&I as of Feb 28, 2020.

What do these mean?

Mark's Plumbing Service INC is one of 31 Plumbing Specialty contractors registered in Everett, registered with WA L&I since 2012. Registered longer than roughly half of Plumbing Specialty contractors in Everett. Principals on record since 2012.

How confident can you be in Mark's Plumbing Service INC?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Feb 28, 2020.

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

Are they who they say they are?

Not yet verified — Mark's Plumbing Service 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 Everett.

Do they have jobs on record?

Not yet measured — Mark's Plumbing Service 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
Feb 29, 2012
Expiration date
Feb 28, 2020
Suspend date
Jun 25, 2019
UBI
603169433
Business type
Corporation
Phone
(425) 345-8321
Location
Everett, WA 98208

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

Registration lapsed Feb 2020 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; 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.

Principals

NameStart date
Mark Nathan SawatzkyFeb 29, 2012
Twila Seann SawatzkyFeb 29, 2012
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. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 31 Plumbing Specialty contractors registered in Everett.

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Subser doesn't have reviews or star ratings. This page shows Mark's Plumbing Service 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 11, 2026. Subser doesn't do star ratings or reviews — just verified records.