Mark's Plumbing Service INC
Plumbing Specialty · Everett, WA · License #MARKSPS883C9
Registration expired per WA L&I as of Feb 28, 2020.
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.
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.
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
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
| Name | Start date |
|---|---|
| Mark Nathan Sawatzky | Feb 29, 2012 |
| Twila Seann Sawatzky | Feb 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.
Looking for reviews of Mark's Plumbing Service INC?
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.
Own Mark's Plumbing Service INC? Claim the listing free. Worked with Mark's Plumbing Service INC? Endorse them from your own listing.
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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.