ContractorHistory

Washington contractor

COSTIGAN CONSTRUCTION COMPANY

Registered in Washington for 35 years

License number
COSTICC099DK
UBI
601289809
Trade
General contractor(all general contractor contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · GENERAL
City
Seattle, WA(all contractors in Seattle)
Phone
(206) 790-7474

Current verification

  • Found: Active Washington contractor registration
  • Found: Current bond record found
  • Found: Current liability insurance record found
  • Found: No Attorney General complaint records found

From the state records below; each section shows its source and when it was last synced.

Registration

Status
ACTIVE
Effective date
March 12, 1991
Expiration date
April 28, 2027

Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.

Bond

Current bond

  • Bond company
    American Contractors Indem CO
    Bond number
    100953629
    Amount
    $30,000
    Effective date
    April 24, 2025
    Expiration date
    Until canceled

Bond history

  • Bond company
    American Contractors Indem CO
    Bond number
    100712835
    Amount
    $12,000
    Effective date
    January 12, 2023
    Expiration date
    Not on record
    Cancellation date
    March 2, 2024
  • Bond company
    Western Surety Co
    Bond number
    65656368
    Amount
    $12,000
    Effective date
    October 7, 2021
    Expiration date
    Not on record
    Cancellation date
    November 17, 2022
  • Bond company
    CONTRACTORS BONDING AND INS CO
    Bond number
    SD8941
    Amount
    $12,000
    Effective date
    March 7, 2002
    Expiration date
    Not on record
    Cancellation date
    November 29, 2020

Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Liability insurance

Current policy

  • Carrier
    Contractors Bonding & Insuranc
    Policy number
    CKA0552350
    Coverage amount
    $1,000,000
    Effective date
    April 24, 2026
    Expiration date
    April 24, 2027

L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.

Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 9, 2026.

People

Principals L&I lists for this license.

  • COSTIGAN, CHARLES HARRISSince March 12, 1991

Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: COSTIGAN CONSTRUCTION COMPANY in Seattle. Complaints filed under another name or city are not included.

A complaint record does not establish that the business violated the law.

Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced October 9, 2026.

Record history

Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.

No changes recorded since our records began on October 6, 2026.

Sources

Record last synced October 7, 2026.

Check this record against the state directly on L&I's Verify a Contractor page (search by license number COSTICC099DK).