Raw ground to finished frame.

Excavation, foundations, framing, drainage and renovation across Princeton and Mercer County. One crew, from the first dig to the final walkthrough.

Dig. Pour. Frame. Drain. Finish.

A two-bay garage in grey siding with a ladder rack along the roofline

Big Green Builders is a small crew in Princeton. We dig the hole, pour the footings, frame the walls, move the water, and finish the rooms. One company for the whole job means nobody waits on somebody else’s schedule, and nothing gets handed off without someone who cares about it.

Licensed NJ HIC #13VH11625300By appointmentSomerset & Mercer Counties

Five kinds of work

One crew from the first cut to the final coat. If it touches the ground or the envelope, we do it in-house.

An excavator breaking up a cleared lot beside a yellow dumpster

Ground

Excavation, demolition, land clearing, grading, stump and boulder work.

A framed addition in brown structural sheathing standing on red scaffolding

Foundation

Footings, precast footings and foundations, retaining walls, slab and pad prep.

New windows and door set into brown structural sheathing, with a ladder and work boots on gravel

Frame

Structural framing, sheathing, additions, garages, sheds.

A perforated drain pipe bedded in a stone-lined trench beside a house

Water

French drains, swales, dry wells, regrading, driveway drainage.

Kitchen with pale cabinetry, stone counters and brass pendants over the island

Finish

Kitchens, baths, stairs, trim, and the tree planting that settles a new house in.

Ground, foundation, frame and finish. Photographed on our own jobs.

  • Excavation
  • Demolition
  • Land clearing
  • Grading
  • Stump & boulder work
  • Structural framing
  • Foundations
  • Precast footings
  • Precast foundations
  • Retaining walls
  • French drains
  • Swales & dry wells
  • Driveway drainage
  • Kitchens & baths
  • Stairs & trim
  • Large tree planting
Recorded on a clearing job, Mercer County.

Clearing, not stripping

Overgrowth here is usually multiflora rose, honeysuckle, barberry and tree-of-heaven. Stumps come out whole rather than ground down, and brush is chipped or hauled because burning is not allowed in New Jersey. The trees worth keeping stay standing.

Recent work

Eight jobs, Princeton and the towns around it

A two-storey addition in green structural sheathing with windows set, a skid steer in the foreground
Framing a two-storey additionPrinceton
A completed house in pale siding with two garage doors and a new driveway
Finished exteriorWest Windsor
A bath finished in vertical navy tile with a niche and brass fixtures
Guest bathPrinceton
A freshly finished room with a wide window and protected floor
Interior refitLawrence Township
An addition in brown structural sheathing with red scaffolding along the rear wall
Sheathing and scaffoldMontgomery
A wood-tread stair with white panelling beside a leaded glass front door
Stair and entryHopewell Township
A kitchen with cream shaker cabinets, stone counters and a large island
Kitchen rebuildPennington
A new asphalt shingle roof seen from above with two skylights
Roof replacementRobbinsville

Half of what we do is never seen again once the ground closes over it.

What happens next

  1. The walk

    We come out by appointment, look at the access, and talk through what you have in mind. No pressure, no estimate form to fill in.

    A rear yard opened up beside a green-sheathed addition, a compact excavator parked on the soil
  2. The price

    One firm written number, after we know what we are digging into. It does not move because the digging was harder than it looked.

    A long run of white kitchen cabinets under a tiled backsplash, new plank floor in front
  3. The callout

    We mark the utilities through NJ One Call before anything breaks ground. Three business days, every time, on every job.

    A long bed of drainage stone laid along a freshly graded yard
  4. The work

    The machine sized to your gate, ground protection over the lawn, the work zone kept tidy and the spoils contained.

    A green-sheathed addition with ladders and staging set along the wall in winter
  5. The handover

    Graded, swept, and ready for the next trade or your inspector. We would rather be remembered for the site than the speed.

    A finished open kitchen with a white island under a single glass pendant

Before you dig

Pick your project. This is what usually applies in Princeton before anyone puts a bucket in the ground.

Foundation or addition

NJ One CallRequired
What applies
Frost depth in Mercer and Middlesex is 36 inches, so footings bottom out below that line. Plans and a footing inspection apply.
Typical duration
4 to 8 days

This is guidance, not a permit. Your town has the final word, and we will tell you what we know before you spend anything.

The work is the argument

A finished house is the most public thing a builder makes, and most of what makes it good is never seen again. The trench, the base, the compaction, the way the site was left. We build as though all of it will be inspected later, because eventually some of it will be.

Anyone can make a wall look right for a photograph. The wall has to still be right in fifteen years, when the ground has moved and the person who paid for it has forgotten our name.

Do it once, properly

A rework costs you more than it costs us, and it is the one thing we will not do.

Leave it better

The lawn, the trees and the driveway next door are part of the job.

Put it in writing

The price, the scope, the sequence. If it is not written down, it is not agreed.

One crew

No chain of subcontractors. The people who start the job are the people who finish it.

Big Green Builders badge: a house among pines beneath a mountain ridge
A finished kitchen with cream shaker cabinets and a stone-topped island
Kitchen rebuild, Pennington. Cabinetry, counters and trim by our crew.

Who you are hiring

13VH11625300Big Green Builders Co. · New Jersey Home Improvement Contractor
“They always go the extra mile by explaining their services clearly and keeping clients updated on their progress. Their prices are fair, and they are very friendly to work with.”
Ameena L. · Google review
“Service was done with high quality, efficiency, and precision, and they were exceedingly professional and a pleasure to do business with.”
Ahmed E. · Google review
“Great work. Very professional. Would recommend to anyone.”
Ashley H. · Google review
Owner-operated
Big Green Builders Co.
Booked
By appointment
Also known as
Princeton Excavation

We work by appointment across the area, including

  • Princeton
  • Hopewell Township
  • Montgomery & Skillman
  • West Windsor
  • Lawrence Township
  • Pennington
  • Robbinsville
  • Hamilton Township
  • Plainsboro
  • Cranbury
  • South Brunswick
  • Hillsborough
  • Ewing

Before you call

Do I need a permit to dig on my property?

Sometimes. Jobs that disturb more than 5,000 square feet need a soil erosion plan certified by your county's Soil Conservation District. Princeton wants a stormwater facility when a home project adds more than 400 square feet of new impervious surface. Trees, wetlands and flood areas have their own rules. Your town has the final word, and we will tell you what we know before you spend anything.

How deep do footings have to go around here?

In Mercer and Middlesex Counties, and every county north of them, New Jersey's building code puts frost depth at 36 inches. Footings have to bottom out below that line. Your plans and your inspector set the exact depth, and we cut to it.

Can you reach a fenced or tight backyard?

Usually. Our most compact machine is a tracked skid steer that fits through a standard backyard gate, so we work fenced rear yards and narrow side yards that full-size equipment cannot reach. For bigger jobs we bring an excavator, telehandler or dump truck. We confirm the access when we walk the property.

What does a French drain cost?

Typical New Jersey ranges run about $10 to $50 per linear foot. That is a market range, not our quote. After a site walk you get one firm written price, and that is what you pay.

Do you haul away dirt and brush?

Yes. Spoil from a dig and cleared brush leave on our dump truck, and brush can be chipped. Burning is not allowed in New Jersey. The written price covers it, so there is no separate surprise at the end.

Do you take small jobs?

Full projects we scope and quote have a $3,000 minimum, because getting a machine to your property and back takes the same effort whether the work lasts an hour or a full day. For smaller work you can book the crew and machine by the day, and you can combine a few stump removals with some grading into one project.

A powder room finished in patterned floral wallpaper with a walnut vanity
Powder room, Lawrence Township. Paper hung and set by our crew.

Tell us about the property.

We work by appointment across Princeton, Hopewell, Montgomery, West Windsor, Lawrence and the towns between. Send a note and we will find a time to walk it.

The rear of a finished home with a bluestone patio and new lawn