Recent Blog Posts

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How to Know When Your Need Septic Tank Services

October 14, 2025
Wondering when you need septic tank services for your property? Check out this guide and call today to learn more about the service!
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6 Key Reasons to Hire a Septic System Pumping Company

October 1, 2025
Discover six key reasons you should hire a septic system pumping company, from preventing backups to extending system life and ensuring proper maintenance.

Cesspool and Septic Services

Suffolk and Nassau Counties, NY

Emergency Service

Free Estimates

Lifetime Installation Warranty

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Dependable Cesspool and Septic Solutions for Long Island

John Willis Cesspool has been the go-to name for sewer and drain cleaning, as well as septic system services, across Suffolk and Nassau counties, NY since 1991. Our family-owned business's team brings over 45 years of experience to every job, delivering exceptional service for all your cesspool and septic needs.


We provide reliable, efficient, and innovative solutions for homes and businesses. Our skilled team is ready to help 7 days a week, handling everything from routine maintenance to urgent repairs.

We know that cesspool and septic problems can be worrying. That's why we offer free, no-obligation, next-day estimates to help ease your concerns. As a fully licensed and insured company, we follow all industry guidelines, standards, and protocols to deliver outstanding service.


We're certified in innovative/alternative onsite wastewater treatment systems (I/A OWTS) and are on the grant list for Suffolk County, NY. From simple drain cleaning to complex commercial installations, we have the expertise to help. For prompt, professional cesspool and septic services, contact us today.

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Why Choose John Willis Cesspool

Emergency service

Free estimates

Lifetime installation warranty

45+ years of experience

Fully licensed and insured

Available 7 days a week

John Willis Cesspool
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Cesspool Service

We offer complete cesspool services, from regular upkeep to emergency fixes. Our team excels at finding hard-to-locate cesspools, ensuring we solve every issue. We back our installations with a lifetime workmanship warranty for your peace of mind.

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Commercial Cesspool and Septic Installations

We specialize in commercial cesspool and septic installations, creating custom solutions for all types of businesses. Using advanced methods and equipment, we install efficient, durable systems that meet your needs and local regulations.

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Commercial Drainage

Our commercial drainage services help keep your business running smoothly. We offer complete solutions to prevent and fix drainage issues, reducing downtime and protecting your property from water damage.

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Drain and Pump Services

We handle all drain and pump issues, from clogs to faulty equipment. Our services include thorough cleaning, repairs, and replacements to keep your system working well. Ask about our $25 OFF any line cleaning service to maintain clear drains.

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Grease Trap Services

For restaurants and food businesses, we provide expert grease trap installation and maintenance. Our services help you follow health rules and avoid costly plumbing problems caused by grease buildup.

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Sewer Services

We offer full sewer services, including checks, cleaning, repairs, and replacements. Using the latest technology, we accurately find and fix issues to keep your sewer system working efficiently.

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Excavation and Site Prep

Our excavation and site prep work sets the stage for successful installations and repairs. With our crane service, we're ready to tackle even the toughest projects, guaranteeing smooth progress from start to finish.

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Grading and Drainage

Good grading and drainage are key to protecting your property from water damage. We assess your land and create effective solutions to direct water away from buildings, preventing erosion and foundation problems.

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Land and Lot Clearing

Planning a new construction project? Our land and lot clearing services prepare your site for development. We efficiently remove obstacles and ready your land for building, always following local environmental rules.

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Septic System services

Take advantage of our years of knowledge and experience to handle all your septic system needs. From tank pumping and repairs to drain field and drywell installations and septic system maintenance, we do it all.

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$25 OFF Line Cleaning

Get $25 OFF any line cleaning service

in Suffolk and Nassau counties, NY.

Call Now for Service

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
(631) 268-0870

$25 OFF Line Cleaning

Get $25 OFF any line cleaning service

in Suffolk and Nassau counties, NY.

Call Now for Service

Not valid with any other offers or promotions. Restrictions apply.
Must mention this coupon at the time of scheduling.
(631) 268-0870

$100 OFF Cesspools

Get $100 OFF a new cesspool system

installation by John Willis Cesspool.

Contact Us for Service

Not valid with any other offers or promotions. Restrictions apply.
Must mention this coupon at the time of scheduling.
(631) 268-0870
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Here's what our satisfied customers are saying...

At John Willis Cesspool, we take pride in providing exceptional cesspool and septic services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and aids others in making more informed decisions. Please take a moment to leave a review of John Willis Cesspool and let others know what you think. Thank you.