Washington contractor
MECHANICAL & MACHINE SERVICES
First registered in Washington on May 8, 2007
- License number
- MECHAMS936KH
- UBI
- 604013831
- Trade
- General contractor(all general contractor contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · GENERAL
- City
- KENNEWICK, WA(all contractors in Kennewick)
- Phone
- (509) 727-2176
A newer license record under the same UBI is on file: MECHANICAL & MACHINE SERVICES, license MECHAMS801LP, EXPIRED, effective June 26, 2020. See Related licenses below.
Current verification
- Found: No Attorney General complaint records found
- Review: Registration is not currently active
- Review: Registration appears to be expired
- 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
- EXPIRED
- Effective date
- May 8, 2007
- Expiration date
- June 30, 2024
- Suspension date
- July 1, 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, 604013831. 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.
License MECHAMS801LP · ELECTRICAL CONTRACTOR · June 26, 2020 to June 26, 2024
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
L&I does not publish bond records for contractors with EXPIRED status.
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
L&I does not publish liability insurance records for contractors with EXPIRED status.
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.
- MAINWARING, TIMOTHY JACKSince May 8, 2007
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: MECHANICAL MACHINE SERVICES in KENNEWICK. Complaints filed under another name or city are not included.
2 other registered contractors share this business name and city: MECHANICAL & MACHINE SERVICES (MECHAMS801LP, EXPIRED), MECHANICAL & MACHINE SERVICES (MECHAMS937KH, EXPIRED). 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
- L&I Contractor License Data - General, Washington State Department of Labor & Industries
- L&I Contractor License Data - Bond, Washington State Department of Labor & Industries
- L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries
- L&I Contractor License - Principal Data, Washington State Department of Labor & Industries
- Attorney General Consumer Complaints, Washington State Attorney General's Office
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 MECHAMS936KH).