Washington ContractorCheck

Duet Design and Build LLC

Construction Contractor in Kirkland, Washington

Licensed, bonded & insuredBond $30,000Insurance $1,000,000

Call (425) 246-3266Send a messageMap ↗

Public-record details

Address
10216 Ne 122nd St, Kirkland, WA 98034
Phone
(425) 246-3266
Trade
Framing, drywall & insulation
L&I licence number
DUETDDB861OE
Licence type
Construction Contractor
Specialty
Framing and Rough Carpentry
Status
Active
Business type
Limited Liability Company
UBI number
603 377 368
Primary principal
Derek Paul Sitzmann
Registration effective
September 5, 2014
Registration expires
January 23, 2028
Bond on file
$30,000 (Western Surety Co)
Bond effective
January 23, 2026
Bond expires
Until canceled
Liability insurance on file
$1,000,000 (Cumis Specialty Insurance Comp)
Insurance expires
September 30, 2026

Washington L&I licence DUETDDB861OE: active, expires January 23, 2028; bond and liability insurance on file (checked 2026-09-30). Source: Washington L&I contractor registration, bond and insurance files (record). Data as of 2026-09-30.

Data comes from Washington L&I's public contractor, bond and insurance files. Before hiring, re-check the licence at secure.lni.wa.gov/verify (it also shows violations and lawsuits) and ask for the written disclosure statement. Planning an ADU in Seattle or Bellevue? See ADU Builder Index.

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