Suffolk County, Long Island
Cesspool and septic service across Suffolk County — and the grants that replace them
Pumping, inspections and repairs through a full nitrogen-reducing replacement. Suffolk County and New York State together pay up to $45,000 toward replacing a cesspool or septic system with an I/A system, and the county application now takes minutes. All work is performed by local licensed, permitted Suffolk County-approved installers.
The one thing every Suffolk County cesspool owner should know
Suffolk County and New York State will together pay up to $45,000 to replace a cesspool with an I/A system.
The county's Septic Improvement Program pays up to $20,000 straight to an approved installer. New York State's Septic System Replacement Program pays up to 75% of eligible costs, capped at $25,000. One county application covers both, it runs on a phone, and the county says it answers in about a week. Applications with a documented system failure go ahead of everything else.
- County grant
- up to $20,000
- State grant
- up to $25,000
- Stacked
- up to $45,000
- Verified
- September 16, 2026
What we do
Six things, done properly
Cesspool & septic pumping
call for a price
The cheapest thing you can do for a system, and the one most often skipped.
DetailsLeaching pool repair
call for a price
Diagnosis before replacement — most pools fail for a reason worth finding.
DetailsInspections
call for a price
For a sale, a refinance, or knowing where you stand. Report the same day.
DetailsI/A replacement
about $25,000 and up, plus engineering and design (county figure), before grants
The nitrogen-reducing system the county and state grants pay toward.
DetailsEmergency service
Backing up, overflowing, or a cover that has cracked or sunk.
DetailsEverything else
Locating, cleaning, lift stations, filters and the odd jobs in between.
Details
Why here is different
A cesspool does not treat anything. On this island, that is the whole problem.
A cesspool is a pit. Waste goes in, liquid soaks out through the sides into sand and gravel, and nothing in the process removes nitrogen. Long Island's soil moves that water quickly, and it moves it into the aquifer the island drinks from before it reaches the bays and harbors. Suffolk County's own position is blunt: cesspools and septic systems are a major source of nitrogen pollution that contaminates drinking water and fuels harmful algal blooms.
That is why an I/A system — innovative/alternative onsite wastewater treatment — exists and why the county pays for it. It treats the wastewater before it leaves the property, removing far more nitrogen than a cesspool or a conventional tank can. It is also why the county's biggest concern is systems built before 1973, the block and brick era, which were never built to do anything but hold and drain.
How it works
Three steps, no surprises
- 1
Send the address
Tell us what the system is doing and whether it is a cesspool or a tank. Emergencies go to the front of the day.
- 2
Price confirmed before anything is booked
You get the number before a truck is scheduled, not at the driveway with one already there.
- 3
Licensed, permitted, written up
The work is done by licensed local contractors, and you get the record: what was found, what was done, when it is next due.
All work is performed by local licensed, permitted Suffolk County-approved installers.
Where we work
14 communities across Suffolk County, Long Island
Money
Straight answers on cost
Get started
Book a visit or get a price
All work is performed by local licensed, permitted Suffolk County-approved installers.