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Septic Tank Services in New York

Find trusted, licensed septic companies across 34 cities in New York. Compare ratings, read reviews, and get free estimates.

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New York Service Map
34 cities with verified providers
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Statewide

Browse Septic Services by County in New York

59 counties with septic providers across New York

Suffolk County
64 companies
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Dutchess County
24 companies
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New York County
19 companies
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Oneida County
18 companies
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Erie County
16 companies
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Onondaga County
14 companies
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Ulster County
13 companies
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Monroe County
12 companies
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Oswego County
12 companies
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Westchester County
12 companies
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Kings County
11 companies
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Nassau County
11 companies
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Saratoga County
10 companies
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Wayne County
10 companies
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Ontario County
9 companies
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Putnam County
9 companies
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Broome County
8 companies
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Jefferson County
8 companies
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Rensselaer County
8 companies
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Richmond County
8 companies
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Tompkins County
8 companies
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Orange County
7 companies
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Cattaraugus County
6 companies
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Delaware County
6 companies
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Greene County
6 companies
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Herkimer County
6 companies
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Niagara County
6 companies
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Warren County
6 companies
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Allegany County
5 companies
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Columbia County
5 companies
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Livingston County
5 companies
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Madison County
5 companies
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Steuben County
5 companies
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Albany County
4 companies
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Bronx County
4 companies
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Cayuga County
4 companies
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Fulton County
4 companies
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Otsego County
4 companies
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Schenectady County
4 companies
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Chautauqua County
3 companies
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Chenango County
3 companies
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Cortland County
3 companies
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Franklin County
3 companies
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Montgomery County
3 companies
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Seneca County
3 companies
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St. Lawrence County
3 companies
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Sullivan County
3 companies
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Chemung County
2 companies
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Clinton County
2 companies
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Queens County
2 companies
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Rockland County
2 companies
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Schuyler County
2 companies
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Tioga County
2 companies
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Washington County
2 companies
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Wyoming County
2 companies
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Yates County
2 companies
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Essex County
1 company
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Hamilton County
1 company
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Schoharie County
1 company
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Browse septic services by county across New York.

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Local Guide

About Septic Systems in New York

New York's diverse geography creates distinct challenges for septic system owners, from Long Island's sandy soils overlying a sole-source aquifer to the Adirondacks' short construction seasons and deep frost lines. Approximately 25% of New York homes rely on septic systems, concentrated in suburban areas of Westchester, Suffolk, and Nassau counties, as well as rural regions across the Finger Lakes, Hudson Valley, and upstate. The state's Appendix 75-A regulations impose strict design standards, with county health departments administering permits and the New York State Department of Health providing oversight. Enhanced treatment requirements in NYC watershed areas and Long Island's groundwater protection zones make New York among the most regulated septic environments nationwide.

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25%

Homes on Septic

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110

Licensed Providers

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4.7/5

Avg Service Rating

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Every 3-5 years

Recommended Pumping

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Regulatory Authority

New York State Department of Health and county health departments

  • βœ“Appendix 75-A of the State Sanitary Code governs all individual sewage systems statewide with specific design and installation standards
  • βœ“Licensed Professional Engineer design required for systems serving flows over 1,000 gallons per day or located in complex sites
  • βœ“Long Island counties enforce additional regulations protecting the sole-source aquifer underlying Nassau and Suffolk counties
  • βœ“Enhanced nitrogen-removing treatment systems mandated in NYC watershed areas and sensitive Finger Lakes watersheds to protect drinking water

Inspection Rules: Inspection requirements vary by county, with some jurisdictions requiring septic evaluations at property sale while others mandate periodic operational inspections

Environmental Factors

Soil Type

High Impact

Glacial till dominates upstate with clay-rich soils in the Hudson Valley restricting drain field options, while Long Island's sandy loam provides excellent drainage but minimal filtration above the aquifer, and shale-derived soils in the Southern Tier require engineered solutions

Water Table

High Impact

Water table depths range from 3 feet in coastal Long Island and spring-flooded river valleys to 20 feet in upland areas, with seasonal fluctuation of 4-6 feet during snowmelt creating periodic saturation that compromises drain field performance

Climate

Medium Impact

Humid continental climate brings 40-50 inches annual precipitation with heavy spring snowmelt overwhelming systems, while summer humidity maintains year-round soil moisture that reduces evapotranspiration efficiency in conventional drain fields

Frost Line

High Impact

Frost penetration reaches 42-48 inches across most of New York, requiring tank burial depths of 4+ feet and insulated pipe runs in the Adirondacks where frost can extend beyond 60 inches in severe winters

Average Pumping Cost

$350 – $650per service
$200$800
Metropolitan NYC area labor rates significantly exceed upstate costs, with Staten Island and Long Island commands premiums of 30-50% over rural countiesDeep burial requirements due to 42-48 inch frost line increase excavation and installation costs compared to southern statesLong Island's sole-source aquifer regulations require specialized nitrogen-reducing systems costing $15,000-30,000 versus $8,000-12,000 for conventional systemsLimited construction seasons in Adirondack and mountainous regions compress provider availability into May-October window, creating premium pricing during peak months

Tips for New York Homeowners

1

Schedule pumping before spring snowmelt in March when high water tables in the Hudson Valley and Finger Lakes regions can prevent safe tank access and create backup risks during the wettest season

2

Long Island homeowners must verify their system meets Suffolk or Nassau County nitrogen reduction standards before property sales, as Enhanced Treatment Units require documentation of proper maintenance

3

Contact your county health department before any system modifications since New York's Appendix 75-A requires Professional Engineer involvement for replacement systems in challenging sites with clay soils or high water tables

4

Protect your drain field during the 42-48 inch frost penetration period by avoiding soil compaction from vehicles and maintaining snow cover insulation, particularly critical in upstate areas with extended freeze cycles

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Common Questions

Frequently Asked Questions

About septic services in New York

Nassau and Suffolk counties sit atop a sole-source aquifer that provides drinking water for 3 million residents with no alternative water supply. Traditional septic systems remove only 30% of nitrogen, allowing the remaining 70% to leach into groundwater. Since the 1980s, nitrate levels have climbed toward EPA limits in many wells. Suffolk County now mandates Innovative/Alternative Onsite Wastewater Treatment Systems (I/A OWTS) that remove 60-90% of nitrogen through advanced media filters, aerobic treatment units, or denitrification technologies. Homeowners replacing failed systems must upgrade to these Enhanced Treatment Units, which cost $15,000-30,000 installed but protect the aquifer that supplies their own drinking water.
Clay-rich soils throughout Dutchess, Orange, and Ulster counties create percolation rates too slow for conventional drain fields, which require at least 60 minutes per inch percolation in New York. When soil perc tests exceed this threshold, Appendix 75-A mandates engineered alternatives like shallow pressure-dosed systems, mound systems with imported sand, or at-grade systems that sit above natural grade. Clay's poor drainage also elevates seasonal water tables, forcing tanks deeper to maintain required separation distances. Many Hudson Valley properties require Licensed Professional Engineer designs due to these soil limitations, adding $2,000-5,000 in design costs before construction begins.
Properties in the Catskills and Delaware watershed supplying New York City's drinking water face the nation's strictest septic standards. The NYC Department of Environmental Protection requires enhanced nitrogen removal systems similar to Long Island regulations but adds phosphorus reduction mandates. All new construction and replacement systems within the watershed must achieve 60% nitrogen reduction minimum, verified through third-party testing. Additionally, the Watershed Agricultural Council provides free septic system assessments and cost-sharing for upgrades on farms. Homeowners benefit from subsidized replacement programs, but all work requires approval beyond standard county health department permits, adding 30-60 days to project timelines.
Winter installation is impractical and generally prohibited across the Adirondacks, where frost penetrates 48-60+ inches and ground freezes solid from December through March. County health departments typically won't authorize permits when excavation is impossible and inspectors cannot verify soil conditions or conduct required perc tests. The realistic construction window runs May through October, with September-October preferred when water tables recede to lowest annual levels. This compressed season creates scheduling challenges and premium pricing. Emergency repairs during winter require temporary holding tanks until spring when proper replacement can occur. Properties considering new systems should secure permits and contractor commitments by April to guarantee summer completion.
Appendix 75-A requires PE involvement when daily sewage flow exceeds 1,000 gallons (typically 5+ bedroom homes), when slopes exceed 15%, or when soil conditions demand engineered solutions like mound or pressure-dosed systems. Many Westchester, Rockland, and Long Island properties trigger PE requirements due to small lots, high water tables, or poor percolation rates. County health departments determine necessity during initial site evaluations. While PE design adds $3,000-7,000 upfront, it ensures regulatory compliance and proper function in challenging conditions. Standard residential systems on suitable sites with conventional gravity drain fields typically require only contractor design reviewed by the county health department, avoiding PE costs.
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