Septic to Sewer Conversion in Washington Township / Sewell, NJ

Why owners convert

A failing drain field is the most common reason: soggy ground, slow drains, odors, or a tank that needs pumping more and more often. Where a main is available, connecting can be a better long-term answer than replacing the field.

Home sales are another trigger. A septic inspection that flags a problem can put a closing at risk, and a clear written scope for conversion helps everyone move forward. The third is growth — adding a bathroom or an addition can push an existing system past what it was designed for. Converting before or alongside that project often beats enlarging a septic system you'd rather not keep.

Grinder pumps vs. gravity laterals

Most sewer laterals work by gravity: the pipe runs downhill at a steady fall from your house to the main in the street, and nothing mechanical is involved. When the house drain sits higher than the main, gravity is simple, quiet and low-maintenance, and it's what we use whenever the grades allow.

When the house sits lower than the main — or the main is too shallow to reach with a proper fall — gravity alone can't do the job. That's where a grinder pump comes in: a small pump in a buried basin grinds the waste and pushes it uphill through a pressure line to the sewer. It needs electricity and occasional service, so it's not our first choice, but on some lots it's the only workable option.

We shoot the grades between your house drain and the connection point before we quote, so you'll know which system your lot needs and why, before any digging starts.

Abandoning the septic tank

Once the house is flowing to the sewer, the old tank has to be properly taken out of service. A licensed hauler pumps it, then it's either removed or broken and filled in place with clean material so it can't collapse later. The disposal field is normally left in the ground.

We coordinate the pumping and do the abandonment ourselves as part of the conversion. Check with the township on what documentation it wants for the closed tank, and we'll make sure it's in order.

Permits and fees

A conversion needs a connection approval from the sewer authority and a plumbing inspection of the new line before it's covered up. Connection fees are set by the WTMUA and the township, not by us — please confirm current figures with them rather than relying on a number from a contractor.

We pull the permits we're responsible for and schedule inspections so the job keeps moving. Our estimate covers the work on your property: the trench, the lateral or grinder pump system, the tank abandonment and the restoration.

Restoration

A sewer trench runs through lawn and often across a walk or driveway. We backfill and compact in lifts so the trench line doesn't settle, regrade so water drains away from the house, and finish with topsoil and seed. Where concrete has to be cut, our own crew replaces it.

New seed takes a few weeks to fill in and a full season to blend completely, depending on the time of year and how well it's watered. We'll give you simple watering instructions when we finish.

Backup now? Call first

If sewage is backing up today, the problem is usually the pipe to the tank or a full tank — that needs attention before any conversion planning.