Alpine Sprinklers INC
Irrigation/Sprinkling Systems · Issaquah, WA · License #ALPINSI029CJ
Alpine Sprinklers INC is one of 3 Irrigation/Sprinkling Systems contractors registered in Issaquah, registered with WA L&I since 1998. Current filings: $15,000 surety bond (continuous) and $500,000 liability coverage through Jan 20, 2027. A surety bond has been on file since 2012.
How confident can you be in Alpine Sprinklers INC?
Are they licensed, bonded, and insured?
Active license, $15,000 bond and $500,000 liability on file — checked against WA L&I records, updated daily.
Are they who they say they are?
Not yet verified — Alpine Sprinklers 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 Issaquah.
Do they have jobs on record?
Not yet measured — Alpine Sprinklers 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.
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Feb 11, 1998
- Expiration date
- Jun 18, 2028
- UBI
- 601806171
- Business type
- Corporation
- Phone
- (425) 391-8701
- Location
- Issaquah, WA 98027
Source: WA L&I contractor registration — checked Aug 17, 2026. Applies to every row above.
Registration is current through Jun 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 |
|---|---|---|---|
| American States Insurance Co | $15,000 | Jul 1, 2024 | Continuous — until canceled |
| American States Insurance Co | $6,000 | Apr 20, 2012 | Aug 31, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Hartford Casualty Ins Co | $500,000 | NIEHL INSURANCE AGENCY | Jan 20, 2025 | Jan 20, 2027 |
What the bond and insurance requirements mean for homeowners
To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; 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 |
|---|---|
| Robert Michael Darnall | Mar 2, 2012 |
| Kim Rene Darnall | Mar 2, 2012 |
| Robert M Darnall | Jan 1, 1980 |
What is a Irrigation/Sprinkling Systems contractor licensed to do in Washington?
Irrigation contractors design, install, and repair lawn and landscape sprinkler systems — supply lines, valves, heads, drip zones, and controllers. Seasonal work such as spring start-ups, winterization, and leak repair is a large share of the trade. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 3 Irrigation/Sprinkling Systems contractors registered in Issaquah.
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Subser doesn't have reviews or star ratings. This page shows Alpine Sprinklers 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 Aug 17, 2026. Subser doesn't do star ratings or reviews — just verified records.