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.

Source:License facts on this pageVerify at WA L&I

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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.

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Bond & insurance on file

Bond firmAmountEffectiveExpiration
Merchants Bonding Co (Mutual)$15,000Oct 9, 2024Continuous — until canceled
Merchants Bonding Co (Mutual)$6,000Sep 22, 2014Oct 9, 2024
Insurance companyAmountAgencyEffectiveExpiration
Charter Oak Fire Ins Co$1,000,000USI Insurance Services LLC- CONov 30, 2025Nov 30, 2026
Charter Oak Fire Ins Co$1,000,000USI Insurance Services LLC- CONov 30, 2024Nov 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

NameStart date
John W ThielstSep 29, 2014
David Thomas RuffSep 29, 2014
David L CoffmanSep 29, 2014
Scott L MohrSep 29, 2014
Patrick J PiermatteiSep 29, 2014
David E GardnerSep 29, 2014
Paul Van BenschotenSep 29, 2014
Arvind K NerurkarSep 29, 2014
Timber E ChinnSep 29, 2014
James IversSep 29, 2014
William VeelmanSep 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.