Septic Tank Installation Built To Last Decades
Planning a new home or replacing a failed system? Aaron Excavating handles complete septic system installation — excavation, tank setting, piping, drain field, and backfill — with our own equipment and crew.
- New construction
- System replacement
- Own excavators
- Licensed & insured
Septic System Installation For Every Site
The right system depends on your soil, lot size, slope, and household needs. Hover or tap each type to learn more.
Conventional Gravity
A tank and drain field that use gravity to move wastewater. Common where soil drains well and the field sits below the house.
Pump Systems
A pump chamber sends effluent uphill or evenly across the field when gravity alone won't work.
Mound Systems
A raised, engineered drain field used where groundwater is high or soil is shallow.
Chamber Systems
Plastic chambers replace stone in the drain field — useful on tighter or harder-to-access sites.
Tank Replacement
Replacing a cracked or failing tank while keeping a healthy existing drain field.
Final system type is set by soil testing, the engineered design, and local health department approval.
A Septic Installation Done The Right Way
This is one of our crews setting a new tank. Every septic installation we do includes the details that keep a system working for decades.
Level, Stable Base
The excavation is dug to grade and bedded so the tank sits level.
Precast Tank Set By Excavator
Our own machines set the tank accurately and safely.
Accessible Lids
Lids placed for easy future pumping and inspection.
Proper Pipe Connections
Inlet and outlet lines set at the correct pitch.
How Septic Installation Works
From design approval to final grade, here's what to expect.
Soil Test & Design
Soil testing and an engineered design determine the right system for your lot.
Permits & Approval
The design is submitted to the local health department for approval.
Excavation
We clear, dig, and prepare the tank and drain field areas.
Tank & Field Install
The tank is set, piping connected, and the drain field built to spec.
Inspection
The system is inspected before it's covered, as required.
Backfill & Grade
We backfill, grade, and leave the site clean and ready for seed.
What Affects Septic Installation Cost?
Every property is different, so septic installation cost varies from job to job. These are the biggest factors that shape your price.
We'll review your design and site and give you a clear, written estimate.
Request An Estimate↗Home Size
More bedrooms usually means a larger tank and field.
Soil & Groundwater
Poor soil or high water may require pump or mound systems.
Rock & Ledge
Rock removal adds time and equipment to the dig.
Slope & Access
Steep or tight lots make excavation more involved.
Design & Permits
Engineering, permits, and inspections are part of the project.
Old System Removal
Replacing a system may include removing or abandoning the old tank.
Septic Installation Across Northern NJ
Septic Installation Questions
How much does septic installation cost?
Septic installation cost depends on system type, home size, soil and groundwater, rock, slope, access, and permitting. We provide a written estimate after reviewing your design and site.
How long does septic tank installation take?
Once the design is approved, installation often takes several days to a couple of weeks depending on system type, weather, rock, and inspections.
Do I need a permit for a new septic system in NJ?
Yes. New and replacement systems require an approved design and permits from the local health department, plus inspections during installation.
Can you replace just the tank?
Often, yes — if the drain field is still working properly. We'll evaluate the system and recommend the best option.
Which areas do you serve?
We serve Morris, Sussex, Warren, Hunterdon, Somerset, and Passaic Counties in Northern New Jersey.
Ready For A New Septic System?
Send us your approved design or tell us about your property. We'll follow up with a clear, written quote.