Gary's Septic Tank Service LLC
Sanitation System/Side Sewers · Walla Walla, WA · License #GARYSST823R8
Active
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
- Owner-verified — The business claimed this listing and verified ownership — free. Claim this listing
- Proven on Subser — The business runs real jobs through Subser — measured performance, not reviews.
License facts
Gary's Septic Tank Service LLC is one of 2 Sanitation System/Side Sewers contractors registered in Walla Walla, registered with WA L&I since 2018. Current filings: $15,000 surety bond (continuous) and $300,000 liability coverage through Oct 1, 2026. A surety bond has been on file since 2018.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Dec 28, 2018
- Expiration date
- Dec 28, 2026
- UBI
- 604247551
- Business type
- Limited Liability Company
- Phone
- (509) 529-8185
- Location
- Walla Walla, WA 99362
Source: WA L&I contractor registration — verified Aug 15, 2026. Applies to every row above.
Is this your business? Update your info and take booking requests.
Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Western Surety Co | $15,000 | Dec 28, 2024 | Continuous — until canceled |
| Western Surety Co | $6,000 | Dec 28, 2018 | Dec 28, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| NATIONWIDE ASSURANCE COMPANY | $300,000 | LLOYD'S INC | Oct 1, 2025 | Oct 1, 2026 |
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 |
|---|---|
| William Henry Duncan | Dec 28, 2018 |
| Muriel Jean Duncan | Dec 28, 2018 |
What is a Sanitation System/Side Sewers contractor licensed to do in Washington?
Septic and side sewer contractors install and repair on-site sewage systems and the side sewer lines that connect buildings to a main. Typical jobs include septic tank and drainfield installation, sewer line replacement, and repairs found during inspections. 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 2 Sanitation System/Side Sewers contractors registered in Walla Walla.
Browse the directory
Built from Washington State L&I public records, updated Aug 15, 2026. No star ratings or reviews — verification only.