Excavation for a house in northern New Jersey runs $15,000 to well over $100,000, and usually lands between $50,000 and $60,000. Clearing wooded land runs $4,000 to $30,000 an acre and averages around $16,000.
Two holes the same size can cost very different money, and the reasons are not mysterious. Here is what actually moves the number on an excavation quote, so you can read any bid, ours included, like someone who knows.
Start with the day rate, because that is the part that surprises people
Most writing about excavation cost points straight at rock, access and depth. Those are real, but they only explain why one day costs more than another. They do not explain the day rate itself, and the day rate is usually what people are reacting to.
It is simpler than it looks. The day rate is arithmetic: what has to be carried before a machine turns. It is the difference between a landscaper charging $50 to cut a lawn and an excavator charging $1,800 for the day.
- Insurance. General liability, commercial auto on every truck and trailer, workers compensation on every man. Carried whether or not the phone rings, and on underground work the limits are not small.
- Labor. Not just the wage. Payroll taxes, comp premium, training, and the hours that are real work but are not on your job: loading, travelling, fueling, and the markout call three business days before anybody digs.
- Equipment. An excavator is a several-hundred-thousand-dollar machine that is either financed or owned outright, and either way it costs money to sit still. Then tracks, buckets, teeth, hoses, and the truck and trailer that move it.
- Fuel. For the machine, and for the truck that hauled it there and will haul it back.
- Materials. Pipe, stone, fittings, fill, fabric, at whatever the supply house is charging this week.
- Maintenance and downtime. Machines break. A hydraulic line lets go and the day stops. That gets priced in, because the alternative is pricing every job as though nothing ever goes wrong.
Two things fall out of that list. A quote well below everybody else is not a bargain, it means something on the list is missing, and the item people leave off is almost always insurance. Ask for the certificate before you sign anything. And overhead is structural: a smaller family-run outfit carries less of it than a large operation, because there is no salaried sales force to fund and no layer between the person who quotes your job and the person running the machine on it. That is not a promise to be the cheapest number you get, it just means less of what you pay goes somewhere other than your property.
On a house, four things move it more than anything else. Rock is the biggest, because hammering out ledge or boulders is slow work and you cannot see it from the road. What is being built on matters next: a slab, a crawlspace and a full basement are three different excavations. Whether the utilities are overhead or underground changes how much digging and coordination there is. And whether the site is on city sewer and water or on septic and well can add two more projects on top of the dig.
On land clearing the spread is even wider, because "wooded" is a vague word. Young saplings and mature hardwood are not the same job. What decides it is whether the material stays on the property or gets hauled off, whether a forestry mulcher runs the job and leaves the chips, whether the stumps come out, and whether rough grading is included, because a cleared lot and a usable lot are different things.
About "cost per cubic yard"
This is how most people go looking for the answer, and it is a reasonable place to start. Excavation does get priced and bid by the cubic yard, especially on commercial work where the quantity is taken off a plan.
Two things break the number, though, and they break it in the same direction every time.
A cubic yard in the ground is not a cubic yard in the truck. Soil expands when you dig it. The volume you removed and the volume you have to haul are different numbers, and hauling is priced on the second one. Anybody quoting you a flat per-yard price should be able to tell you which one they are counting.
The per-yard price is a digging price, not a job price. Mobilization, markouts, erosion control, dewatering, restoration and disposal are separate, and disposal in particular is where New Jersey stops looking like the rest of the country. More on that below.
So use per-yard numbers to sanity check a bid, not to budget a job. The five things below are what actually set your price.
Access
A machine that drives right up to the work is cheap. A backyard behind a fence, a steep slope, or a tight side yard means smaller machines, more handling, and more hours. Access is the first thing we look at on a site visit and the most common reason two similar jobs price differently.
The mechanism is worth spelling out, because it is not a surcharge for inconvenience. It is a chain, and every link is hours:
Tighter access means a smaller machine. A smaller machine moves less per hour. The job takes longer. Longer is more labor, and labor is what you are paying for.
The end of that chain is no machine at all. If the work cannot be reached by equipment, it gets hand dug, and hand digging is dramatically slower than a bucket. Same hole, same pipe, several times the hours. That is why two identical scopes on two different properties come back as very different numbers, and why we would rather walk the access route before quoting than guess at it from the street.
What the ground is made of
Sandy loam digs fast. Wet clay fights the bucket. And in the Highlands towns, ledge rock a few feet down changes the equipment list entirely. We dig in this ground every day, so our estimates account for what your neighborhood usually hides. Surprises still happen, and when they do, we show you before we price the change.
Where the dirt goes, and why New Jersey is different
Spoils are half the job. If material can stay on site and be graded in, that saves real money. If it has to be loaded, trucked, and disposed of, that is trucks and tipping fees, and honest bids say so up front. When a bid is oddly low, missing disposal is often why.
Here is the part most cost guides written for the whole country leave out. New Jersey regulates who is allowed to move your dirt.
Under P.L. 2019, c.397, known as the Dirty Dirt Law, a business providing soil and fill recycling services needs either an A-901 license from NJDEP or a Soil and Fill Recycling Registration. The law defines those services broadly: "the collection, transportation, processing, brokering, storage, purchase, sale or disposition, or any combination thereof, of soil and fill recyclable materials." Soil and recycled fill generated from land clearing, excavation, demolition or redevelopment sits squarely inside that.
Two details matter to you as the person paying:
- There is no self-generator exemption. NJDEP's own guidance says the Department interprets the law as not including one. A contractor hauling away dirt it dug itself is not automatically outside the rule.
- Virgin quarry products are excluded. Rock, stone, gravel, sand, clay and other mined products are carved out, so a business dealing exclusively in those is exempt. Your excavated site soil is not that.
The practical version: ask whoever is hauling your spoil what their standing is under the Dirty Dirt Law. It is a fair question, it takes ten seconds, and the price difference between a compliant hauler and a cheap one is exactly the kind of gap that turns into your problem later. If a public entity retains a contractor for soil and fill recycling services, NJDEP is explicit that the contractor must hold a valid A-901 license.
Water
A high water table or a wet season can mean dewatering, stone, and extra handling. It is not a big line item on most jobs, but on the wrong site in the wrong month it matters, and it is better discussed before the machine shows up.
What is buried nearby
Working around utilities slows things down, on purpose. Markouts, hand-digging near lines, and protecting what is already in the ground take time that careless outfits skip. We do not skip it. Our walkthrough of how NJ mark-outs actually work covers the timing.
The permit nobody budgets for
Disturb more than 5,000 square feet of soil and the work becomes a project under New Jersey's Soil Erosion and Sediment Control Act, which needs a plan certified by your county Soil Conservation District. The district has 30 days to grant or deny. That is a real line on the schedule and sometimes a real line on the budget, and it is the single most common thing missing from a first-time estimate. We cover the thresholds and the two statutory exclusions in do I need a permit to clear land in New Jersey.
What a per-yard number does and does not cover
| Usually inside the per-yard price | Usually priced separately |
|---|---|
| Machine and operator time to dig | Mobilization of equipment to the site |
| Loading the material | Trucking, and disposal or tipping fees |
| Moving spoil around on site | Erosion and sediment control, if the job needs a certified plan |
| Rough grading of the excavated area | Dewatering on a wet site |
| Restoration: topsoil, seed, hardscape repair | |
| Hand-digging and protection near marked utilities |
Common questions
Why does an excavator cost so much more per day than a landscaper? Because of what is carried before the machine turns. A day of excavation has general liability, commercial auto and workers compensation insurance in it, payroll taxes and comp premium on top of wages, a several-hundred-thousand-dollar machine that costs money even sitting still, the truck and trailer that moved it, fuel for both, materials at this week's supply house price, and the maintenance and downtime that comes with running equipment. That list is roughly the same for anybody doing the work properly, which is why the day rate lands where it does. It is the difference between $50 to cut a lawn and $1,800 for the day.
What does excavation cost per cubic yard? It varies with access, soil, depth and where the material ends up, which is why a single national number is close to useless for a specific site. Use per-yard figures to sanity check a bid, then get a real number from someone who has walked the property. Ours is free.
Why is the yardage on my invoice higher than what I measured? Because soil expands when it is dug. The volume in the ground and the volume in the truck are two different numbers, and hauling is billed on the loose volume. A good estimator will tell you which basis they quoted.
Why does hauling dirt cost more in New Jersey? Partly tipping fees, and partly because the state regulates who may transport soil. The Dirty Dirt Law requires an A-901 license or a Soil and Fill Recycling Registration for soil and fill recycling services, with no self-generator exemption, so compliant hauling carries a real cost that a lowball bid may simply be ignoring.
Can I keep the dirt on site to save money? Often yes, and it is usually the single biggest saving available on a residential job. It depends on whether there is somewhere sensible to place it, whether the grading still drains correctly afterwards, and whether the material is suitable. We look at that first, because trucking is expensive and avoiding it is free.
Do I need a permit before excavating? If you are disturbing more than 5,000 square feet, almost certainly a certified soil erosion and sediment control plan. Utility markouts through 811 are separate and always required.
Why does access change the price so much? Because it converts straight into hours. Tighter access means a smaller machine, a smaller machine moves less per hour, and the job runs longer, which is more labor. If equipment cannot reach the work at all it gets hand dug, which is several times slower than a bucket for the same hole. Nothing about the pipe changed; the time did.
Why is one bid so much cheaper than the others? Look for what is missing rather than what is cheap. The usual gaps are disposal, restoration and erosion control. A bid that leaves out all three will always win on paper and rarely wins on the final invoice.
Still not sure how this applies to your property? That is what a free on-site estimate is for. Call 862-268-2510 or tell us what is going on, and we will give you a straight answer, including when the answer is that you do not need us.
Get a real number
Want a number for your project instead of a theory? The estimate is free and it holds: 862-268-2510. The scope of what we handle is on our excavation page.
Sources
- NJDEP, A-901 licensing and Soil and Fill Recycling.
- NJDEP, P.L. 2019 c.397 "Dirty Dirt Law" Soil and Fill Recycling Services FAQ, the definition of soil and fill recycling services, the absence of a self-generator exemption, the virgin quarry product exclusion, and the requirement that a contractor retained by a public entity hold a valid A-901 license.
- N.J.S.A. 4:24-39 et seq., the Soil Erosion and Sediment Control Act, the 5,000 square foot threshold and the district's 30-day decision window.
This is general information, not a quote and not a ruling on your property. Requirements depend on your site, your town and your county Soil Conservation District.
Every range we publish, with what moves each one, is on what this work costs.