Excavation & Underground Utilities in Tewksbury, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Tewksbury and across Hunterdon County. Tewksbury sits about 33 miles south of our Hamburg yard, roughly 50 minutes out, so we can get a crew and the right machine there without a long wait.
JWSR LLC is a licensed and insured excavation and utility contractor based in Hamburg, New Jersey, about 33 miles from Tewksbury, working across Hunterdon County. Only about 4.5% of Tewksbury sits inside a public water delivery area, in pockets served by NJ American Water - Short Hills, so most properties here are on private wells. Only about 2.7% of Tewksbury is inside a sewer service area (OLDWICK VILLAGE WATER POLLUTION CONTROL PLANT), so most properties here are on septic. We do the underground work either situation calls for: water and sewer service lines, septic, storm drainage, excavation and restoration. Call 862-268-2510 for a free on-site estimate.
Clearing and reclaiming land in Tewksbury
Tewksbury is farm and open country, and plenty of land here has sat overgrown and unused for years. Land clearing here means taking those lots back and turning them into something useful again, whether that is reclaiming a field for hay, opening ground for livestock to graze, or clearing a pad for a new building.
We clear, grub, grade, and haul so owners can put land that sat idle back to work. That is a big part of what we do here, but it is far from the only thing. We still handle sewer and water lines, septic, grading, driveways, and emergency digs across town.
Helpful guides: Storm damage: document before you clean up · Preventing erosion after excavation
Hunterdon County is rural and agricultural, heavy on well and septic systems, stone, and long private drives. It is exactly the kind of ground our equipment is built for.
As a township, Tewksbury has the kind of larger properties where septic systems, grading, drainage, land clearing, and long driveways come up most. Whether it is an emergency sewer or water line dig-out, a septic system, a lot that will not drain, or a new driveway, we bring our own equipment and an operator who knows the ground in this part of Hunterdon County. We show up when we say we will, and we leave your property graded and clean.
Services for properties in Tewksbury
Septic Installation in Tewksbury
New septic systems, replacements, and repairs, permitted and done right.
Learn more →Grading & Drainage in Tewksbury
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Land Clearing in Tewksbury
Clear brush, trees, and stumps and get your lot ready to build.
Learn more →Driveways, Roads & Lots in Tewksbury
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Excavation in Tewksbury
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Sewer & Water Lines in Tewksbury
Emergency sewer and water line dig-outs, repairs, and full replacements.
Learn more →Some of what we have been building
A look at recent excavation, utility, and site work from around Hunterdon County and northern New Jersey.
What tends to be in the ground in Tewksbury
Tewksbury has no one dominant building era. Its 2,370 housing units are spread across the decades, with the 1970s the largest single share at 18%.
Roughly 37% dates to the 1940s through early 1970s. That is the Orangeburg window, and pipe from it is past the age where it can be counted on.
Housing-age figures: US Census American Community Survey 2019–2023 5-year estimates, table B25034. Pipe service lives are documented industry figures. What is actually under any one property varies, so we confirm it on site before we quote a replacement.
Most of Tewksbury is on a private well
About 4.5% of Tewksbury’s land area sits inside a public water purveyor’s delivery area, shared between 4 different systems. The largest is NJ American Water - Short Hills, then Washington Twp MUA - Schooleys Mountain. Outside those pockets most properties are on a well, sometimes their own and sometimes one shared with neighbors, and the three situations are different jobs with different rules. Which one you are in is the first thing to settle, and your bill settles it faster than any map.
What replacing a water service involves, and who supplies water in every town we cover.
Source: NJDEP Purveyor Service Areas of New Jersey, edition 2025-07-03, measured against US Census municipal boundaries. NJDEP maps actual delivery areas for public community systems, meaning fifteen or more year-round connections; smaller shared and association systems are real but do not appear. Percentages are share of land area, not share of homes, and a state file can lag a change of ownership. The name on your bill beats any map, including this one.
The part that changes the job here
Tewksbury is mostly wells and septic, with two small sewer systems: New Jersey American Water's Pottersville plant and the Oldwick Village plant.
The township has put the Oldwick Village plant under a Capacity Assurance Program that does not allow new connections beyond those already planned, so living next to the Oldwick sewer does not mean a house can tie into it.
Sewer in Tewksbury is a pocket, not a network
About 2.7% of Tewksbury’s land area falls inside a mapped sewer service area. The largest share goes to OLDWICK VILLAGE WATER POLLUTION CONTROL PLANT, with 5 smaller works alongside it. A service area is where sewer is planned and permitted, not a promise that a main runs past your house, so the only way to settle it for one address is to look. Outside it, septic.
Sewer connections, laterals and septic work are all things we do, and which one you need is usually settled in one phone call. Sewer and water line work.
Source: NJDEP Sewer Service Areas, read 2026-09-08, measured against US Census municipal boundaries. Percentages are share of land area, not share of homes. Most polygons in this layer are small on-site treatment works for a single school, campground or business, so read the percentages rather than the count.
Working in Tewksbury
How fast can you get to Tewksbury?
Tewksbury is roughly 50 minutes from our Hamburg base, so we can usually be out for an estimate quickly, and for a sewer or water line emergency we start moving right away, day or night.
Do you install and repair septic systems in Tewksbury?
Yes. Septic installs, repairs, and failed-field excavation are some of the most common jobs we do in Hunterdon County townships like Tewksbury. We handle the dig, the tank, and the grading, and we leave the yard clean.
Are you licensed and insured to work in Hunterdon County?
Yes. JWSR LLC is a licensed and insured New Jersey contractor, and we work across Hunterdon County and six other counties. We pull the permits, mark out, and do it by the book.
Need excavation in Tewksbury?
Free on-site estimates and 24/7 emergency service, about 50 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510