Master Mechanical LLC
Heating/Vent/Air-Conditioning and Refrig (HVAC/R) · Olympia, WA · License #MASTEML83373
Master Mechanical LLC is one of 16 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Olympia, registered with WA L&I since 2017. Registered longer than roughly half of Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors in Olympia. Current filings: $15,000 surety bond (continuous) and $1,000,000 liability coverage through Oct 10, 2026.
How confident can you be in Master 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.
Are they who they say they are?
Not yet verified — Master 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 Olympia.
Do they have jobs on record?
Not yet measured — Master Mechanical LLC 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
- Oct 23, 2017
- Expiration date
- Nov 17, 2027
- UBI
- 604160950
- Business type
- Limited Liability Company
- Phone
- (360) 628-1569
- Location
- Olympia, WA 98513
Source: WA L&I contractor registration — checked Sep 28, 2026. Applies to every row above.
Registration is current through Nov 2027.
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 |
|---|---|---|---|
| Western Surety Co | $15,000 | Nov 17, 2025 | Continuous — until canceled |
| Western Surety Co | $6,000 | Oct 10, 2017 | Nov 17, 2025 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| LIO Insurance Company | $1,000,000 | HEFFERNAN INS BROKERS-CA | Oct 10, 2025 | Oct 10, 2026 |
What the bond and insurance requirements mean for homeowners
Washington requires specialty contractors to file a $15,000 surety bond with the Department of Labor & Industries as a condition of registration ($30,000 for general contractors). 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 |
|---|---|
| Dale Allen Vanslyke | Oct 23, 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. The registration requires a $15,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 16 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Olympia.
Looking for reviews of Master Mechanical LLC?
Subser doesn't have reviews or star ratings. This page shows Master Mechanical LLC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Master Mechanical LLC? Claim the listing free. Worked with Master Mechanical LLC? Endorse them from your own listing.
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Browse the directory
Built from Washington State L&I public records, updated Sep 28, 2026. Subser doesn't do star ratings or reviews — just verified records.