Custom Design Mechanical INC
Heating/Vent/Air-Conditioning and Refrig (HVAC/R) · Bothell, WA · License #CUSTODM066QO
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State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
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License facts
Custom Design Mechanical INC is one of 17 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Bothell, registered with WA L&I since 1994.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Nov 20, 1994
- Expiration date
- Jun 6, 2028
- UBI
- 601565481
- Business type
- Corporation
- Phone
- (206) 819-4408
- Location
- Bothell, WA 98011
Source: WA L&I contractor registration — verified Aug 12, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Nationwide Mutual Ins Co | $15,000 | Nov 25, 2025 | Continuous — until canceled |
| CBIC | $6,000 | Nov 20, 2004 | Canceled Nov 29, 2025 |
| Nationwide Mutual Ins Co | $30,000 | Nov 25, 2024 | Nov 25, 2025 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Liberty Mutual Ins Co | $1,000,000 | ISU Insurance Solutions | Nov 20, 2024 | Nov 20, 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 |
|---|---|
| Jim A Tripple | Jan 1, 1980 |
| Kristi M Tripple | Jan 1, 1980 |
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 17 Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors registered in Bothell.
Other Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractors in Bothell, WA
Airman Heating & Cooling LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #AIRMAHC778P6 · $15,000 bond
Bothell Heating & A/C
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #BOTHEHC750BT · $30,000 bond
Coretemp Mechanical LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #CORETML743D7 · $15,000 bond
Gasket Guy Northwest LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #GASKEGN836K4 · $30,000 bond
Hello Refrigeration LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #HELLORL781NS · $30,000 bond
Husky Mechanical LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #HUSKYML760RZ · $15,000 bond
Nikita Refrigeration LLC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #NIKITRL831D2 · $15,000 bond
Pacific Air Control INC
Heating/Vent/Air-Conditioning And Refrig (HVAC/R) · Bothell, WA
License #PACIFAC230P8 · $15,000 bond
Browse the directory
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Built from Washington State L&I public records, updated Aug 12, 2026. No star ratings or reviews — verification only.