Grant money available in East Hampton
Suffolk County
Up to $20,000
Suffolk County SIP grant. Checked Oct 20, 2026.
New York State
Up to $25,000
NYS SSRP grant. Checked Oct 20, 2026.
Town
Up to $20,000
East Hampton Town incentive. Checked Oct 20, 2026.
Town of East Hampton Septic Incentive Program
- Start with the Town's eligibility verification form (Form 1).
- Covers approved costs of replacing a septic system with a low-nitrogen system.
Program contact: Town of East Hampton Natural Resources / Septic Incentive Program. Your installer handles the town paperwork with you.
The calculator uses $20,000 (Water Protection District). Outside it, the cap is $15,000.
Full County and State rules, the 8-step process and a grant estimator are on the Suffolk septic grant guide.
Not a government website. We aren't affiliated with Suffolk County, Nassau County, any town, or New York State, and we can't approve or speed up a grant. Grants go through the official programs, Suffolk SIP (Reclaim Our Water) and Nassau SEPTIC, and the installer you hire handles the grant process with you.
Water Protection District vs. the rest of town
The Town pays more, up to $20,000, inside its Water Protection District. Everywhere else in town the cap is $15,000. The Town's Form 1 (eligibility verification) tells you which applies to your property before you spend anything on design.
Why upgrades here have been slow, and what changed
When the Town's program launched in 2017, uptake was slow: six months in, only one system had been installed, against an estimated 12,000 residential systems in town that needed updating. Officials blamed costs (installs ran closer to $22,000 than the $17,000 forecast) and the engineering step required before installation. The State raised its share to 75% (up to $25,000) in 2025 and the County grant is now $20,000, so the out-of-pocket math is very different today.
New construction must go I/A
East Hampton requires advanced (nitrogen-reducing) wastewater treatment for most new residential construction, in step with the County's 2021 rule. That's a requirement, not a grant: new construction on a vacant lot isn't eligible for County money.
Installers near East Hampton
Six SIP-approved installers on the County's September 2026 list have East Hampton addresses, plus one in Sag Harbor. We don't publish or rank them. When you send a request, it goes to licensed installers who serve your area, and only SIP-approved ones for grant jobs.
Communities covered
- East Hampton
- Amagansett
- Montauk
- Springs
- Wainscott
- Northwest Woods
- Sag Harbor (part)
Incorporated villages run their own building departments. Your design professional identifies any village permits.
Services in East Hampton
Island-wide prices: cesspool replacement cost guide.
East Hampton cesspool & septic FAQ
How much can an East Hampton homeowner get in total?
Up to $20,000 from the County SIP, up to 75% or $25,000 from the State, and up to $20,000 (Water Protection District) or $15,000 (elsewhere) from the Town. The total can't exceed what the project costs.
Where do I start?
With the Town's eligibility verification form on the Septic Incentive Program page, and the County application at suffolkcountyny.gov/septicgrants. The County grant must be issued before installation.
Sources
- Town of East Hampton: Septic Incentive Program
- Town of East Hampton: Details and Forms
- 27east (2018): Septic Replacements Slowed By Costs And Logistics
- East Hampton Star: septic program updates
- Suffolk County SIP Homeowner Process Overview (2026) and Septic Improvement Program page
- Suffolk County Septic Improvement Program page (SSRP: up to 75%, not to exceed $25,000)
- Town of East Hampton Septic Incentive Program