Coffman Engineers INC
Heating/Vent/Air-Conditioning and Refrig (HVAC/R) · Seattle, WA · License #COFFMEI866O9
Coffman Engineers INC is one of 53 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Seattle, registered with WA L&I since 2014. Registered longer than roughly half of Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors in Seattle. Current filings: $15,000 surety bond (continuous) and $1,000,000 liability coverage through Nov 30, 2026.
How confident can you be in Coffman Engineers INC?
Are they licensed, bonded, and insured?
Active license, $15,000 bond and $1,000,000 liability on file — checked against WA L&I records, updated daily.
Are they who they say they are?
Not yet verified — Coffman Engineers INC hasn't claimed this listing. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from other licensed contractors in Seattle.
Do they have jobs on record?
Not yet measured — Coffman Engineers INC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.
Subser doesn't do star ratings or reviews — just verified records. What do these mean?
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Sep 29, 2014
- Expiration date
- Oct 9, 2028
- UBI
- 600310893
- Business type
- Corporation
- Phone
- (206) 623-0717
- Location
- Seattle, WA 98101
Source: WA L&I contractor registration — checked Sep 26, 2026. Applies to every row above.
Registration is current through Oct 2028.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Merchants Bonding Co (Mutual) | $15,000 | Oct 9, 2024 | Continuous — until canceled |
| Merchants Bonding Co (Mutual) | $6,000 | Sep 22, 2014 | Oct 9, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Charter Oak Fire Ins Co | $1,000,000 | USI Insurance Services LLC- CO | Nov 30, 2025 | Nov 30, 2026 |
| Charter Oak Fire Ins Co | $1,000,000 | USI Insurance Services LLC- CO | Nov 30, 2024 | Nov 30, 2026 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000). This contractor's current filing shows a $15,000 bond.
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
Principals
| Name | Start date |
|---|---|
| John W Thielst | Sep 29, 2014 |
| David Thomas Ruff | Sep 29, 2014 |
| David L Coffman | Sep 29, 2014 |
| Scott L Mohr | Sep 29, 2014 |
| Patrick J Piermattei | Sep 29, 2014 |
| David E Gardner | Sep 29, 2014 |
| Paul Van Benschoten | Sep 29, 2014 |
| Arvind K Nerurkar | Sep 29, 2014 |
| Timber E Chinn | Sep 29, 2014 |
| James Ivers | Sep 29, 2014 |
| William Veelman | Sep 29, 2014 |
What is a Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractor licensed to do in Washington?
An HVAC/R specialty contractor is registered with WA L&I to install and service heating, ventilation, air-conditioning, and refrigeration systems. Electrical and mechanical work within HVAC systems may also require trade licenses administered separately by the state. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 53 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Seattle.
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Subser doesn't have reviews or star ratings. This page shows Coffman Engineers INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
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Built from Washington State L&I public records, updated Sep 26, 2026. Subser doesn't do star ratings or reviews — just verified records.