Four Seasons Cesspool
“They showed compassion and determination to get the job done, and I am grateful for such care and concern during a terribly stressful situation.”
Best Septic Tank Services near Smithtown, NY
These companies serve Smithtown from nearby bases in towns including Kings Park, Islandia and Centereach.
15 companies listed · 9 open 24/7 · 12 open weekends · all 15 rated 4.5+ · 7 show a license
Data verified October 18, 2026
Port Jefferson Cesspool Rotary
Discount Cesspool & Drain Inc.
“They have a tough job but never fail to make it easy on the homeowner.”
Rescue Cesspool & Drain
“Outstanding service and the owner Chris ensures that your experience is top notch.”
Affordable Cesspool Sewer & Drain
“Definitely recommend the company i look forward to doing more business with them in the future.”
White Wolf Cesspool Services
“Gave me a few tips so I would not have any overflow of water during the night and Showed up on time.”
The 15 companies listed for Smithtown, NY pump and service existing septic systems. Hours, around-the-clock claims and free estimate offers come from each company's own website. Ask what the quoted visit includes, since opening the main lid and checking the baffles are not always part of it.
Area overview: Smithtown, NY
The 15 companies on this page are rated from 4.5 to 5.0 across 1,596 reviews; 5 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (97%), responsiveness (92%) and quality (88%). The topics that come up most in reviews of the companies on this page are "price", "crew" and "knowledge". 9 are open around the clock and 12 are open on weekends. 7 show a license on their websites. Domain records put 12 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 10 offer emergency call-outs; 10 give free estimates; 6 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 15 of the companies on this page; 14 publish a contact page; 7 list a public email and 2 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do pump out companies listed for Smithtown work on Saturdays or Sundays?
Weekend availability shows on 12 of the 15 listings for Smithtown. Routine pumping is easy to schedule on a weekday and usually cheaper, so save the weekend slot for a tank that is actually backing up. Book ahead in fall, which is when everyone remembers the job at once.
Quality Cesspool
“Very responsive, competitively priced, expert in the field for decades, and very reasonable.”
Vecchio Cesspool
“Great service they did the job plus my proplem solved i will use vecchio again they know what they doiing...”
Perfect Pumping LLC
“Came quick and very knowledgeable I will be using AJ for life💪 …”
Ez Cesspool Long Island
“I have Ez do all the cesspool and drywell installations on all my projects!”
Evenflow Sewer and Drain Service
“On time, done in timeframe that was told and no mess for us to clean up.”
Homeport Engineering
“Tom is very knowledgeable, and will point out repairs and make suggestions that will help prevent future expensive repairs.”
Tom Egan Cesspool Service
“My husband and cannot get over, how diligent they were and how hard they worked to solve the problem, in the pouring rain.”
Environmental Angels
“Lina is great to work with, very professional, thorough and efficient with the project we hired Environmental Angels for.”
Ideal Cesspool and Drain
“Terry from Ideal answered my phone right away and had Ben to come to give me an estimate next day.”
Why these companies made our list
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