Washington ContractorCheck

Costigan Construction Company

Construction Contractor in Seattle, Washington

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

Call (206) 790-7474Send a messageMap ↗

Public-record details

Address
1314 4th Avenue West, Seattle, WA 98119
Phone
(206) 790-7474
Trade
General contractors & remodelers
L&I licence number
COSTICC099DK
Licence type
Construction Contractor
Specialty
General
Status
Active
Business type
Corporation
UBI number
601 289 809
Primary principal
Charles Harris Costigan
Registration effective
March 12, 1991
Registration expires
April 28, 2027
Bond on file
$30,000 (American Contractors Indem CO)
Bond effective
April 24, 2025
Bond expires
Until canceled
Liability insurance on file
$1,000,000 (Contractors Bonding & Insuranc)
Insurance expires
April 24, 2027

Washington L&I licence COSTICC099DK: active, expires April 28, 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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