Polk Mechanical LLC

Heating/Vent/Air-Conditioning and Refrig (HVAC/R) · Marysville, WA · License #POLKMML834J5

Subser ConfidenceListedActive WA license

Polk Mechanical LLC is one of 21 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Marysville, registered with WA L&I since 2017. Registered longer than roughly half of Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors in Marysville. Current filings: $15,000 surety bond (continuous) and $1,000,000 liability coverage through Apr 11, 2027.

How confident can you be in Polk Mechanical LLC?

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

Are they who they say they are?

Not yet verified — Polk Mechanical LLC 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 Marysville.

Do they have jobs on record?

Not yet measured — Polk Mechanical LLC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.

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License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Apr 25, 2017
Expiration date
May 7, 2027
UBI
604110843
Business type
Limited Liability Company
Phone
(425) 268-1471
Location
Marysville, WA 98270

Source: WA L&I contractor registration — checked Aug 17, 2026. Applies to every row above.

Registration is current through May 2027.

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Bond & insurance on file

Bond firmAmountEffectiveExpiration
Western Surety Co$15,000Apr 25, 2025Continuous — until canceled
Western Surety Co$6,000Apr 11, 2017Apr 25, 2025
Insurance companyAmountAgencyEffectiveExpiration
Ohio Security Ins Co$1,000,000MOSAIC INSURANCE ALLIANCEApr 11, 2017Apr 11, 2027
What the bond and insurance requirements mean for homeowners

Registration as a specialty contractor in Washington requires a $15,000 surety bond on file with the Department of Labor & Industries; the general contractor requirement is $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
Steven Lee PolkinghornApr 25, 2017
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. A $15,000 surety bond and general liability insurance, filed with WA L&I, are required for this registration. Washington currently lists 21 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Marysville.

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Subser doesn't have reviews or star ratings. This page shows Polk Mechanical LLC'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 Aug 17, 2026. Subser doesn't do star ratings or reviews — just verified records.