Contractors in Winthrop, Washington

67 listings: general contractors (59), roofing contractors (1), hvac contractors (1), concrete & masonry (3), carpenters & framers (1), painters & drywall (3).

How Do You Find a Licensed Contractor in Winthrop, Washington?

We list 67 contractors in Winthrop, including 67 active official state records. Washington requires contractors to register with the state. Ask for the license number, confirm it with the state or city, and get at least two written bids.

Updated November 6, 2026 · Source: official state records and OpenStreetMap (downloaded November 6, 2026).

C&B Earthworks LLC

Winthrop

Washington L&I: ActiveExcavation & DemolitionGeneral ContractorsBondInsurance

F&S Excavation

Winthrop

Washington L&I: ActiveExcavation & DemolitionGeneral ContractorsBondInsurance

S & L Services

Winthrop

Washington L&I: ActiveGeneral ContractorsBondInsurance

Abidance Inc

Winthrop

Washington L&I: ActiveGeneral ContractorsBondInsurance

Lightwave LLC

Winthrop

Washington L&I: ActiveGeneral ContractorsBondInsurance

Methownet LLC

Winthrop

Washington L&I: ActiveGeneral ContractorsBondInsurance
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Before You Hire in Winthrop

Washington requires contractors to register with the state. Threshold: Based on activity; no project-dollar floor. Read the Washington license summary, then use the hiring checklist and compare your bids. Your city’s building department can also tell you which permits your job needs.

Other Cities in Washington

Sources: Washington L&I, Oregon CCB and New York DOL open data; © OpenStreetMap contributors (ODbL) · Data last updated November 6, 2026 · Sources & method