Excavation, Septic & Site Work Contractor Serving Northwest NJ
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Why Northwest New Jersey Terrain Demands Specialized Expertise
From the granite ledges of Kinnelon to the lakefronts of Sparta—we handle the clearing, the digging, the septic engineering, and the final grading. One accountable partner for everything in the dirt.
You can’t just dig a hole in Northwest New Jersey.
Whether you’re building in Sussex County, Morris County, or the Skylands Region, you’re working against three forces: Granite, Groundwater, and Regulation.
If your contractor doesn’t understand the difference between the glacial till in Vernon and the iron-heavy rock in Rockaway Township, your project timeline and budget are already at risk.
We don’t guess. We know the ground.
The Geology Challenge
The Granite Wall: In towns like Kinnelon (especially Smoke Rise) and Vernon, you can’t dig more than a few feet without hitting bedrock. We own heavy-duty hydraulic breakers—we don’t rent them and wait. We bring them to every job where the geology demands it.
The March Sponge: When spring thaw hits, high water tables in Jefferson, Mt. Olive, and areas near Lake Hopatcong turn properties into swamps. We engineer drainage and septic solutions that account for seasonal groundwater fluctuations, keeping your property dry year-round.
The Regulatory Reality
The Highlands Red Tape: Much of Northwest NJ falls under the NJ Highlands Act, which means environmental compliance isn’t optional—it’s mandatory. We handle soil erosion and sediment control certifications, soil logs, perc tests, and TWA permits from start to finish. You get one partner who speaks the language of both the shovel and the permit office.
Complete Site Solutions: Clearing to Final Grade
Most contractors specialize in one thing. We handle the entire project lifecycle, so you’re not coordinating three different vendors with three different timelines.
We do:
✓ Land Clearing & Grading
✓ Foundation Excavation
✓ Septic System Installation
✓ Drainage & Final Grading
Septic
Services
Complete septic solutions for residential and commercial properties.
From failed inspections to aging systems, we handle septic installation, repair, and replacement from start to finish. If a malfunctioning septic system is holding up your home sale or threatening your property’s functionality, our licensed, insured, and certified septic installers respond quickly with reliable solutions. We offer “Pay at Closing” options and work with 203K loans to make the process easier during real estate transactions.
What we deliver:
- Free site evaluations
- Soil logs and perc tests
- Stamped engineering plans (NJDEP Chapter 199 compliant)
- Raised mound system design for high water tables
- Advanced treatment unit (ATU) specifications for small lake lots
- Solutions for challenging and “unbuildable” properties
Septic Engineering & Designing
Custom-engineered septic systems that meet NJDEP Chapter 199 standards—even on challenging lots.
From start to finish, our skilled team provides septic engineering and design you can trust. We handle the complete engineering process: soil logs, perc tests, and stamped engineering prints. Whether your property has a high water table, limited space, or has been called “unbuildable,” we specialize in raised mound systems and advanced treatment units (ATUs) that turn tough lots into viable building sites.
What we deliver:
- Free site evaluations
- Soil logs and perc tests
- Stamped engineering plans (NJDEP Chapter 199 compliant)
- Raised mound system design for high water tables
- Advanced treatment unit (ATU) specifications for small lake lots
- Solutions for challenging and “unbuildable” properties
Excavation &
Site Work
Precision excavation and site work for residential and commercial projects.
We grade to exact specifications for foundation excavation, so your contractor can start immediately. Rock removal, ledge blasting, and boulder retaining walls are standard work in Sussex County—and we have the equipment and nearly 20 years of experience to handle it without delays. From utility trenching to driveway construction, land clearing to foundation prep, we deliver reliable site work that protects your property and sets your project up for long-term success.
What we do:
- Foundation excavation for basements, additions, and commercial footings
- Rock removal: hydraulic hammering, ledge removal, boulder retaining walls
- Utility trenching for water lines, sewer connections, and electrical conduit (with proper compaction to prevent settling)
- Driveway and private road construction built to handle New Jersey winters
- Land clearing: forestry mulching and stump removal with minimal soil disturbance
Sewer
Services
Reliable sewer line installation, repair, and municipal connection services.
Whether you’re tying into municipal systems or addressing sewer line failures, we trench, install, and connect sewer lines with the precision and attention to detail you’d expect from licensed, insured professionals. Our utility trenching includes proper backfill and compaction, so you won’t deal with settling or drainage issues down the road.
What we provide:
- Municipal sewer connections and tie-ins
- Sewer line installation and replacement
- Sewer line repairs and emergency service
- Utility coordination and permit management
- Proper trenching and compaction for long-term reliability
Serving All Of Sussex County & Northern Morris County
Service Areas: Wantage, Sparta, Vernon, Jefferson, Kinnelon, Rockaway, Newton, Mt. Olive, and surrounding towns across Northwest NJ
Sussex County
Sparta & Lake Mohawk:
We’ve worked extensively around Lake Mohawk’s shoreline properties.
Vernon & Highland Lakes:
Our equipment is built for handling heavy glacial soil and rocky terrain.
Newton & Andover:
We’ve completed projects throughout the county seat and surrounding townships.
Wantage & Frankford:
Our home base. We’re your neighbors, and we know every soil type, every seasonal drainage pattern, and every local inspector.
Morris County (The Northern Tier)
Jefferson & Oak Ridge:
We’re the local choice for Lake Shawnee residents needing septic replacements in high-water-table lots.
Kinnelon & Butler:
Digging in Smoke Rise requires serious equipment and the ability to work in high-end neighborhoods with strict access rules.
Rockaway Township:
From Green Pond Road to White Meadow Lake, we handle the iron-heavy soil that breaks lesser equipment.
Mt. Olive & Budd Lake:
Engineering precise mound systems and curtain drains for the wet conditions near Budd Lake. Seasonal water table management is critical here—we design for it.
We’re based in Wantage, Sussex County—but our fleet and expertise serve the entire Northwest NJ region. Here’s where you’ll see our trucks and equipment
406 County Rd 565, Wantage, NJ 07461.
Meet Mike. A Contractor Who Knows Septic
Excavating New Jersey LLC isn’t a franchise. We’re a local, owner-operated business with nearly 20 years of experience working in Northwest New Jersey’s unique terrain.
We understand that responsible land stewardship in this region means balancing development with watershed protection. Whether we’re installing a commercial septic system for a business on Route 23 or replacing a residential tank for a family in Hopatcong, the standard is the same:
Meticulous work. Transparent pricing. A site left cleaner than we found it.
Mike, the owner, is on the job. He’s the one ensuring every grade is perfect, every pipe is pitched correctly, and every permit is filed properly. When you call, you’re talking to the person who will oversee your project from the first site evaluation to the final inspection.
Frequently Asked Questions
How much does a new septic system cost?
A new septic tank installation typically costs between $30K and $40k, depending on your property and specific situation.
How long will it take to install my septic system?
A septic tank installation takes about six weeks to account for septic system engineering and the Health Department approval process.
Does anybody offer septic system financing?
If your septic tank installation is for a home sale, we can offer installation and pay at closing.
Are there environmentally friendly green septic systems?
Yes, we provide the sales, service, and installation of the environmentally green Norweco systems, which are made right here in America. If you’re looking for a green septic system, contact us today for our septic tank installation services.
What is the cost to repair my septic tank?
Typically, the cost to repair a septic tank is between $7k and $9k. If you need septic repairs, call us today for a free estimate on our services.
What is the cost to repair my septic system?
The cost to repair your septic system varies based on what the actual problem is. It could be that your tank needs to be cleaned out above all else. Most home septic tanks require cleaning every three to five years, according to the EPA. If your tank does need septic repairs, our team can find the problem and offer a quick solution. Contact us today to discuss your septic problems and get a free estimate on our services.
What is a distribution box?
A D-box distributes the septic effluent from the septic system evenly throughout the leach field. If your D-box is no longer doing its job, you may notice excess moisture around your leach field or signs of a full tank. Call our team today for septic repairs if you notice any problems.
What is a pressure dose septic system?
A pressure dose septic system is a system that pumps the effluent up to a leach field that would not work as a gravity-fed leach field. If your current system isn’t functioning well and you want to upgrade to a pressure dose septic system, contact our team today to schedule a septic tank installation.
What are the benefits of an advanced treatment septic system?
Advanced treatment septic systems are great for smaller, more difficult properties. If you want some of your yard space back, These systems eliminate the need for sand mounds. When you’re ready to upgrade your septic system, contact our team to schedule a septic tank installation service.
How can I eliminate a septic mound?
You can eliminate a septic mound by installing a new system that uses advanced treatment technology, such as a Norweco Singulair green treatment system. Our septic tank installation professionals can install one for you. Call us today to learn more.
Will excavation and septic work destroy my landscaping?
We know this is a major concern, especially in manicured neighborhoods like Lake Mohawk or Smoke Rise. We use compact excavators for tight spaces and prioritize “restoration grading.” We don’t just leave a dirt pile—we prep your yard for seed or sod so it recovers quickly. You’ll have clear expectations before we start.
My property is solid rock. Can you still handle the project?
You can eliminate a septic mound by installing a new system that uses advanced treatment technology, such as a Norweco Singulair green treatment system. Our septic tank installation professionals can install one for you. Call us today to learn more.
I’m buying/selling a home and the septic failed inspection. Can you help on a tight timeline?
Absolutely. We specialize in real estate transaction work. We can often assess the failure, engineer a compliant repair or replacement, and complete the work before your closing date. We work with 203K loans and offer pay-at-closing options to reduce upfront financial stress.
Do you handle commercial projects and larger developments?
Yes. While much of our work is residential, we have the fleet capacity and regulatory expertise to handle commercial septic systems, site work for new construction, and utility installation for developments. If your project requires soil erosion and sediment control plans or Highlands Act compliance, we manage that process.
How do you handle permitting and engineering?
We take care of it. From soil logs and perc tests to stamped engineering drawings and municipal permit applications, we handle the paperwork. You’re not coordinating between an engineer, a contractor, and the town—we’re your single point of contact.
Get a Free, No-Surprise Estimate
Stop coordinating multiple contractors. Call the team that handles everything in the dirt—from clearing to final grade.