ContractorHistory

Registered Washington contractor, based in LEWISTON, ID

GUARDIAN PLUMBING & HTG INC

Registered in Washington for 27 years

License number
GUARDPH011MF
UBI
600370089
Trade
General contractor(all general contractor contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · GENERAL
Business address
LEWISTON, ID
Phone
(208) 746-3087

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
  • Review: 2 other license records under the same UBI

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

Registration

Status
ACTIVE
Effective date
July 6, 1999
Expiration date
November 30, 2026

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

Related licenses

2 other license numbers are registered under the same UBI, 600370089. A UBI identifies one business with the state; a business may hold more than one license, renew under a new number, or register a new license after an earlier one closed.

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

Bond

Current bond

  • Bond company
    Travelers Cas and Surety Co of America
    Bond number
    105383094
    Amount
    $30,000
    Effective date
    November 26, 2024
    Expiration date
    Until canceled

Bond history

  • Bond company
    Travelers Cas & Surety Co
    Bond number
    105383094
    Amount
    $12,000
    Effective date
    December 27, 2009
    Expiration date
    November 26, 2024

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

Liability insurance

Current policy

  • Carrier
    Cincinnati Ins Co
    Policy number
    EPP0773899
    Coverage amount
    $1,000,000
    Effective date
    April 1, 2026
    Expiration date
    January 1, 2027

Insurance history

  • Carrier
    Federated Mutual Ins Co
    Policy number
    9358542
    Coverage amount
    $1,000,000
    Effective date
    January 1, 2026
    Expiration date
    January 1, 2027
    Cancellation date
    April 16, 2026

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.

  • SCHARNHORST, DIXIE LSince July 6, 1999
  • SCHARNHORST, WILLIAM ASince July 6, 1999

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: GUARDIAN PLUMBING HTG in LEWISTON. 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 GUARDPH011MF).