Washington ContractorCheck

Tandem Construction

Construction Contractor in Seattle, Washington

Licensed, bonded & insuredBond $30,000Insurance $300,000

Call (206) 409-9264Send a messageMap ↗

Public-record details

Address
Po Box 78538, Seattle, WA 98178
Phone
(206) 409-9264
Trade
General contractors & remodelers
L&I licence number
TANDEC*040R4
Licence type
Construction Contractor
Specialty
General
Status
Active
Business type
Individual
UBI number
604 120 772
Primary principal
Dennis M Guy
Registration effective
December 24, 1996
Registration expires
May 16, 2027
Bond on file
$30,000 (Western Surety Co)
Bond effective
May 16, 2025
Bond expires
Until canceled
Liability insurance on file
$300,000 (Ohio Security Ins Co)
Insurance expires
June 9, 2027

Washington L&I licence TANDEC*040R4: active, expires May 16, 2027; 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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