Excavation & Underground Utilities in Oxford, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Oxford and across Warren County. Oxford sits about 32 miles southwest 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 32 miles from Oxford, working across Warren County. Essentially all of Oxford's land area sits inside a public water delivery area, shared between 3 systems, the largest being NJ American Water - Washington/Oxford. About 40.9% of the town is inside a sewer service area, the largest run by Oxford Service Area, and the rest is 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 Oxford
Oxford 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
Warren County is farm country and river valley, with long rural driveways, big lots, and a lot of grading and drainage work. Properties out here usually need real earthmoving, not just a quick patch.
As a township, Oxford 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 Warren County. We show up when we say we will, and we leave your property graded and clean.
Services for properties in Oxford
Septic Installation in Oxford
New septic systems, replacements, and repairs, permitted and done right.
Learn more →Grading & Drainage in Oxford
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Driveways, Roads & Lots in Oxford
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Excavation in Oxford
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Sewer & Water Lines in Oxford
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in Oxford →Some of what we have been building
A look at recent excavation, utility, and site work from around Warren County and northern New Jersey.
What tends to be in the ground in Oxford
Most of Oxford went up before 1940, across roughly 1,071 housing units.
Close to 40% of it predates 1940. At that age laterals are usually vitrified clay, which takes roots at every joint, and water services are often galvanized steel that scales shut from the inside until pressure falls off.
A smaller share, around 22%, falls in the 1940s-to-early-70s Orangeburg era, so it turns up on some streets and not others.
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.
Nearly all of Oxford is on public water
About 99.9% of Oxford’s land area sits inside a public water purveyor’s delivery area, shared between 3 different systems. The largest is NJ American Water - Washington/Oxford, then Highlander Hills Estates. Sewer is the other half of that, and here the two do not line up: about 40.9% of Oxford sits inside a mapped sewer service area against 99.9% for water, a gap of 59 points. In that gap you get houses on town water with their own septic system in the yard, which catches people out when a tank needs work in a town that feels fully built up. All of this is land area rather than houses, and a main running past a property does not mean the property is on it, since plenty kept the well after the main went in.
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
the Oxford Township Sewer Utility, which discharges to a county authority
Oxford is unusual in Warren County for having nearly all of its land inside a public water delivery area while only about 40 percent sits inside a sewer service area. The township runs its own sewer utility, but it does not treat its own sewage: the ordinance names the Warren County Pequest River Municipal Utilities Authority as the regional system it discharges into. So a connection here involves the township for the pipe and a county authority for what happens after, and outside that 40 percent it is septic.
Oxford is part sewered, part septic
About 40.9% of Oxford’s land area falls inside a mapped sewer service area, treated at Oxford Service Area. 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 Oxford
How fast can you get to Oxford?
Oxford 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 Oxford?
Yes. Septic installs, repairs, and failed-field excavation are some of the most common jobs we do in Warren County townships like Oxford. We handle the dig, the tank, and the grading, and we leave the yard clean.
Are you licensed and insured to work in Warren County?
Yes. JWSR LLC is a licensed and insured New Jersey contractor, and we work across Warren County and six other counties. We pull the permits, mark out, and do it by the book.
Need excavation in Oxford?
Free on-site estimates and 24/7 emergency service, about 50 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510