ContractorHistory

Washington contractor

THORNE SERVICES

Registered in Washington for 35 years

License number
THORNS*097C2
UBI
601301752
Trade
Excavation and side sewer(all excavation and side sewer contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · Excavation, Grading and Land Clearing
City
KINGSTON, WA(all contractors in Kingston)
Phone
(360) 683-2545

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
February 22, 1991
Expiration date
March 11, 2028

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

Bond

Current bond

  • Bond company
    Contractors Bonding & Insurance Co
    Bond number
    SD7112
    Amount
    $30,000
    Effective date
    March 11, 2026
    Expiration date
    Until canceled

Bond history

  • Bond company
    Contractors Bonding & Insurance Co
    Bond number
    SD7112
    Amount
    $12,000
    Effective date
    February 21, 2002
    Expiration date
    March 11, 2026

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

Liability insurance

Current policy

  • Carrier
    Ohio Cas Ins Co
    Policy number
    BLO56959373
    Coverage amount
    $1,000,000
    Effective date
    February 21, 2016
    Expiration date
    February 21, 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.

  • THORNE, DENNIS ALANSince January 1, 1980

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: THORNE SERVICES in KINGSTON. 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 THORNS*097C2).