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Shelter Island Sand, Gravel, & Contracting Inc.
Listed from Suffolk County's public approved list (rev. 09-14-2026)
Shelter Island Sand, Gravel, & Contracting Inc. is on Suffolk County's Approved List of Septic Improvement Program (SIP) installers, which means it can install I/A systems paid for in part with county and state grants. Office: Shelter Island, NY.
- Contact on county list: Margaret Larsen
- Phone: 631-749-1040
- Email: [email protected]
- Address: 17 Bowditch Road, P.O. Box 2028, Shelter Island
- Towns served: not stated on the county list. Ask the installer.
- I/A technologies priced for the county: Fuji Clean CEN Series
Published base-price estimates (1–4 bedroom home)
From Suffolk County's SIP Vendor Cost Ranking (rev. 2025-11-06). "Rank" is this installer's position from lowest price among all vendors the county priced for the same technology and scenario. Base prices only: engineering/design, permit fees and sales tax are extra, and actual costs vary by site. [cost ranking]
| Scenario | I/A technology | Price | Rank |
|---|---|---|---|
| Reuse existing leaching | Fuji Clean CEN Series | $21,212 | #7 of 38 |
| New gravity leaching | Fuji Clean CEN Series | $26,826 | #15 of 38 |
| Pressurized shallow drainfield | Fuji Clean CEN Series | $30,829 | #11 of 38 |
5- and 6-bedroom prices for this installer are on the compare page.
Per the county, Shelter Island Sand, Gravel & Contracting prices apply only to installations on Shelter Island.
Listing information is copied from Suffolk County's public documents and is not an endorsement. Independent guide. Not affiliated with, endorsed by, or operated by Suffolk County, New York State, or any installer. Are you this business? Claim this listing to correct details.
Sources
- Suffolk County – Approved List of SIP Installers (PDF) — revised 09-14-2026
- Suffolk County – SIP Vendor Cost Ranking, 4-bedroom home (PDF) — rev. 2025-11-06
- Suffolk County – Septic Grants Information Homepage — page accessed Oct 17, 2026
Last reviewed October 17, 2026. Program rules change; always confirm with Suffolk County Department of Health Services (631-852-5811, [email protected]).