Reliable plumbing, septic solutions and HVAC services for every pipe, fixture, and flow—delivered with precision, transparency, and respect for your home or workplace. Proudly serving Camden County, Atlantic County, Cape May County, Cumberland County, Gloucester County, Burlington County.

Professional Plumbing and Septic Services in South Jersey

Residential and commercial septic and plumbing services based in Hammonton, NJ

Keep your property running smoothly

Whether you’re building a new property or own a home already, you’re going to need a local plumber you can depend on for premier plumbing installation, plumbing repairs and emergency plumbing services. Dennis LaSassa Jr. Plumbing, LLC offers comprehensive septic and plumbing services for homeowners in the Hammonton, NJ area. We understand how important it is to have reliable plumbing and septic systems. That’s why we are here to assist you when things go awry.

Family owned and operated

Serving Hammonton, NJ residents and South Jersey homeowners for 40+ years

As a family owned and operated business, our first priority is ensuring comfort in our customers' homes. And thanks to over four decades of plumbing trade experience, we’ve been able to successfully do just that for homeowners like you. You’ll never go without a dependable septic or plumbing system when you turn to us for maintenance or repairs. You can count on our experts to never cut corners when it comes to plumbing or septic installation for your new construction or remodel projects.

Contact us today!

Call Dennis LaSassa Jr. Plumbing, LLC for all your residential and commercial plumbing and septic needs

Dennis LaSassa Jr. Plumbing, LLC, serves Hammonton, NJ and the surrounding areas. Call today for a free estimate. Ask about our senior discount!

What Our Clients Say

“Excellent service. A/C was making noise and called for service. They came out within two hours and fixed the problem. Very reasonable rates. Highly recommend.”

“My heater was making noise on a cold day so I was immediately concerned that it would soon break or not work. My husband was out of town and unable to help. I called Dennis LaSassa Jr. Plumbing and within an hour someone was at my home. His name was Billy and he immediately knew the condensate pump needed to be replaced. He made the repair in a timely and professional manner. I was very happy with the entire experience.”

“I had problems with my water. Dale and Ernie explained what needed to be done and what it would cost. They took great care of me. They were very friendly and professional.”

“Heater problem. I called at 8:00 am, and within an hour they arrived at my home. They diagnosed the problem, went to purchase the part and installed it the same morning. Great service, price and professionalism. Highly recommend I wouldn't call anyone else! Tony and Joe thank you!”

“Outstanding service. Broke down to me what was needed, why it was needed and gave me some tips on preventive maintenance. I just moved to the area so I needed a good reliable plumber for the problem and for future issues. I will be requesting them.”

“Just had a septic system installed and I cant say enough good things about this company. The price was very fair and the service we received was next level. Everyone on the crew was extremely nice, polite, and even showed my sons some neat tricks with the machines. If you need septic or anything plumbing-related this is definitely the company for you.”

“Has served our family for years. Great service, reliable, professional with a hometown feel.”

Our Services

Septic Services

Is your septic system out of whack? Avoid large and costly challenges in the future by partnering with a local company you can trust. Dennis LaSassa Jr. Plumbing, LLC offers comprehensive septic services to residential and commercial clients in the Hammonton, south, and central New Jersey area.

Plumbing Services

Dennis LaSassa Jr. Plumbing, LLC specializes in many types of plumbing, including new construction and remodeling plumbing, emergency plumbing services, commercial property maintenance, faucet and toilet installation, leaky pipes, lawn irrigation, and more. Call today for your free quote!

HVAC Services

Whether you’re looking for hot water heater installation and repair, heating and cooling help, or something else — the experienced technicians at LaSassa Plumbing can help. Contact us today or submit an appointment request through our website and let us know how we can help you.

Your Questions, Answered

Do you offer emergency service?

Yes, Dennis LaSassa Jr. Plumbing, LLC is available for plumbing emergencies! Simply call (609) 567-2720 and our on-call team will address urgent issues such as burst pipes, sewer backups, or septic and HVAC emergencies. When you call after hours, you’ll be routed to our answering service for immediate assistance.


How quickly can we get started after our initial quote?

Depending on the scope of the job, many projects can begin immediately. We strive to provide competent, fast, and reliable service when you need it.


What payment options do you offer?

We provide itemized invoices upon project completion or at predefined milestones. Payments can be made via major credit cards, ACH transfer, or check. Flexible installment arrangements are available for larger undertakings.

Contact Us

Whether you’re planning a large-scale project or targeted repairs, our specialists are ready to create a solution tailored to your needs. Contact us today to schedule a no-obligation consultation and discover how effortless superior plumbing, septic and HVAC services can be.