Washington contractor
COFFMAN ENGINEERS INC
Registered in Washington for 12 years
- License number
- COFFMEI866O9
- UBI
- 600310893
- Trade
- HVAC(all hvac contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · Heating/Vent/Air-Conditioning and Refrig (HVAC/R)
- City
- SEATTLE, WA(all contractors in Seattle)
- Phone
- (206) 623-0717
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
- September 29, 2014
- Expiration date
- October 9, 2028
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- Merchants Bonding Co (Mutual)
- Bond number
- WA33807
- Amount
- $15,000
- Effective date
- October 9, 2024
- Expiration date
- Until canceled
Bond history
- Bond company
- Merchants Bonding Co (Mutual)
- Bond number
- WA33807
- Amount
- $6,000
- Effective date
- September 22, 2014
- Expiration date
- October 9, 2024
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Charter Oak Fire Ins Co
- Policy number
- P6307S864976COF25
- Coverage amount
- $1,000,000
- Effective date
- November 30, 2025
- Expiration date
- November 30, 2026
Insurance history
- Carrier
- Charter Oak Fire Ins Co
- Policy number
- P6307S864976COF24
- Coverage amount
- $1,000,000
- Effective date
- November 30, 2024
- Expiration date
- November 30, 2026
- Cancellation date
- November 30, 2025
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.
- RUFF, DAVID THOMASSince September 29, 2014
- THIELST, JOHN WSince September 29, 2014
- CHINN, TIMBER ESeptember 29, 2014 to September 25, 2026
- COFFMAN, DAVID LSeptember 29, 2014 to September 25, 2026
- GARDNER, DAVID ESeptember 29, 2014 to September 25, 2026
- IVERS, JAMESSeptember 29, 2014 to September 25, 2026
- MOHR, SCOTT LSeptember 29, 2014 to September 25, 2026
- NERURKAR, ARVIND KSeptember 29, 2014 to September 25, 2026
- PIERMATTEI, PATRICK JSeptember 29, 2014 to September 25, 2026
- VAN BENSCHOTEN, PAULSeptember 29, 2014 to September 25, 2026
- VEELMAN, WILLIAMSeptember 29, 2014 to September 25, 2026
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: COFFMAN ENGINEERS 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
- 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 COFFMEI866O9).