ContractorHistory

Washington contractor

DIAMOND PLUMBING & HEATING LLC

First registered in Washington on March 13, 2013

License number
DIAMOPH873DL
UBI
603282226
Trade
Plumbing(all plumbing contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · PLUMBING
City
EDMONDS, WA(all contractors in Edmonds)
Phone
(206) 459-2066

A newer license record under the same UBI is on file: DIAMOND PLUMBING & HEATING LLC, license DIAMOPH791NT, ACTIVE, effective September 24, 2021. See Related licenses below.

Current verification

  • Found: Current bond record found
  • Found: No Attorney General complaint records found
  • Review: Registration is not currently active
  • Review: Registration appears to be expired
  • Review: No current insurance record located
  • Review: 1 other license record under the same UBI

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

Registration

Status
RE-LICENSED
Effective date
March 13, 2013
Expiration date
March 25, 2023

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

Related licenses

One other license number is registered under the same UBI, 603282226. 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
    American Contractors Indem CO
    Bond number
    100339974
    Amount
    $6,000
    Effective date
    March 12, 2017
    Expiration date
    Until canceled

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

Liability insurance

Current policy

No current liability insurance record located.

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.

L&I does not publish principal records for contractors with RE-LICENSED status.

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: DIAMOND PLUMBING HEATING in EDMONDS. Complaints filed under another name or city are not included.

One other registered contractor shares this business name and city: DIAMOND PLUMBING & HEATING LLC (DIAMOPH791NT, ACTIVE). Complaints are matched by business name and city, so any complaint records shown here also appear on those pages. The records do not say which of these contractors a complaint was about.

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 DIAMOPH873DL).