3 verified septic companies across 3 cities in Sullivan County. Compare ratings, services, and request free quotes from local providers.
Sullivan County, New York is home to a network of septic service providers ready to assist residents across the region's rural communities and wooded Catskill foothills. This directory lists 3 verified companies covering 3 towns in the county, including Liberty, Monticello, and Narrowsburg. Because much of Sullivan County lies outside municipal sewer districts, private septic systems are the standard wastewater solution for a large share of homes and seasonal properties throughout the area. The county's rolling terrain, clay-heavy soils in certain areas, and cold winters that can cause ground freezing all influence how septic systems are designed and maintained locally. Whether you own a year-round residence or a seasonal cabin in the Catskills, connecting with a qualified local septic contractor is an important step in protecting your property and the groundwater that many Sullivan County households depend on.
Narrowsburg, NY
⭐ 4.4 (104 reviews)
Roto-Rooter Plumbers and Septic Services offers comprehensive plumbing and septic solutions, serving Orange, Sullivan, Delaware, Chenango, Otsego, and Schoharie Counties in New York, as well as Wayne and Pike Counties in Pennsylvania. They provide septic tank cleaning, maintenance, and installation, alongside high-pressure sewer jetting, sewer drain cleaning, and excavating services. The company also specializes in electronic septic tank and sewer line locating, underground pipe video inspections, and trenchless pipe repair. With a reputation for quality work since 1935, Roto-Rooter offers 24-hour emergency service and employs highly-trained, licensed, and insured technicians. They are equipped with state-of-the-art technology to handle both commercial and residential projects, ensuring customer satisfaction with every job.
Monticello, NY
⭐ 3.0 (2 reviews)
Liberty, NY
⭐ 2.2 (5 reviews)
Sullivan County, New York features a mix of older rural homesteads, mid-century cottages, and more recent construction, many of which rely on conventional gravity-fed septic systems where soil conditions allow. In areas with higher water tables or shallower soils — common in low-lying stretches near the Delaware River or around the county's many lakes and reservoirs — pump-up systems and alternative designs such as mound systems are more frequently installed. The county has a notable inventory of seasonal vacation properties, particularly around its lakes, which can experience periods of heavy use in summer followed by months of dormancy. This irregular usage pattern affects how tanks accumulate solids and can influence pumping schedules. Homeowners with older systems should be aware that systems installed decades ago may not meet current design standards and could require upgrades when properties change hands.
Septic system permits in Sullivan County, New York are administered through the Sullivan County Department of Public Works and the county's Division of Environmental Health, which operates under authority delegated by the New York State Department of Health. Any new septic installation, significant repair, or system replacement typically requires a permit and site evaluation before work begins. New York State regulations under Part 75 of the State Sanitary Code establish minimum standards for onsite wastewater treatment systems, and county rules may add further requirements based on local soil and density conditions. Point-of-sale inspections are not universally mandated by state law in New York, but real estate transactions in Sullivan County frequently involve voluntary or lender-required inspections as a practical matter. Homeowners can find applicable regulations by contacting the Sullivan County Division of Environmental Health directly or reviewing materials available through the county government offices. Always verify current requirements with your local health department.
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