Excavation & Underground Utilities in Andover Borough, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Andover Borough and across Sussex County. Andover Borough sits about 14 miles southwest of our Hamburg yard, roughly 20 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 14 miles from Andover Borough, working across Sussex County. About 65.8% of Andover Borough's land area sits inside a public water delivery area, served by Andover Boro WD, and the rest is on private wells. About 35.7% of the town is inside a sewer service area, the largest run by Sussex Properties Inc Andover Twp WTP, 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.
Which Andover? There are two of them
Sussex County alone has two municipalities called Andover. They are separate governments with their own ordinances and their own permit desks, which is what matters before anybody digs. This page is Andover Borough, 14 miles southwest of our Hamburg yard. If that is not the one you meant:
- Andover Township in Sussex County, the township
Fiber optic construction is active in Andover Borough right now
Right now, a large share of what we do in Andover Borough is underground utility work for fiber optic internet. Planet Networks has been building high speed fiber across Sussex County for years and is closing in on covering nearly every home in the county, and our background in underground utility construction is a big reason providers lean on crews like ours to get these lines in the ground, town by town.
We handle the boring, trenching, conduit, and restoration so the network goes in clean and yards get put back the way we found them. 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: How we install cable with a vibratory plow · Running fiber through a Christmas tree farm
Sources: Planet Networks nears county-wide Sussex fiber coverage (Sparta Independent) · Planet Networks fiber availability
Sussex County is lake country and rolling farmland, and plenty of homes out here run on well and septic with older service lines. This is our own backyard, so we know the rocky ground, the frost depth, and the lake-community setups better than most.
In a built-up borough like Andover Borough, the common jobs are sewer and water lines, underground utilities, and excavation in tighter spots. 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 Sussex County. We show up when we say we will, and we leave your property graded and clean.
Services for homes and businesses in Andover Borough
Sewer & Water Lines in Andover Borough
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in Andover Borough →Utility Construction & Repair in Andover Borough
Water, sewer, and underground utility installation, trenching, and emergency repair.
Learn more →Excavation in Andover Borough
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Driveways, Roads & Lots in Andover Borough
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Grading & Drainage in Andover Borough
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Retaining Walls in Andover Borough
Block and boulder retaining walls that hold back soil and look sharp.
Learn more →Some of what we have been building
A look at recent excavation, utility, and site work from around Sussex County and northern New Jersey.
What tends to be in the ground in Andover Borough
Most of Andover Borough went up before 1940, across roughly 299 housing units.
Close to 41% 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.
The bigger issue here is the 46% built between 1940 and the early 1970s. Orangeburg pipe was rated fifty years and routinely goes oval and collapses closer to thirty, so in a borough weighted this heavily toward that window it is less a question of if than which street.
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 Andover Borough is on public water, but not all of it
About 65.8% of Andover Borough’s land area sits inside a public water purveyor’s delivery area, all of it served by Andover Boro WD. Sewer is the other half of that, and here the two do not line up: about 35.7% of Andover Borough sits inside a mapped sewer service area against 65.8% for water, a gap of 30 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 Andover Borough Water Department
Worth saying plainly because it trips people up constantly: Andover Borough and Andover Township are two different municipalities with two different answers. The borough has its own water department under NJDEP system 1901001. The township has no water department at all and is split among several private water companies. Same name on the sign, completely different phone call.
Andover Borough is part sewered, part septic
About 35.7% of Andover Borough’s land area falls inside a mapped sewer service area. The largest share goes to Sussex Properties Inc Andover Twp WTP, with 1 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.
Andover Borough sits in one watershed, at 4.5 acres per septic system
First, what this is not: it is not a minimum lot size, and it does not mean a house here needs acres of land to get a septic. Plenty of working systems in Andover Borough sit on far less. It is the figure the state uses to judge how many more systems the ground can absorb before groundwater nitrate becomes a problem, and it matters most if you are subdividing.
- 4.5 acres per system in the Pequest River, above Bear Swamp watershed
Watersheds do not follow town lines, which is why two neighbors on one road can fall either side of a number. The whole county, watershed by watershed.
Sussex County Wastewater Management Plan, December 2017, Table 9. Zoning changes and DEP updates its model, so this is the last published position rather than a ruling on any property. Your town’s zoning office and the county Health Department are the ones that decide.
Working in Andover Borough
How fast can you get to Andover Borough?
Andover Borough is roughly 20 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 handle sewer and water line work in Andover Borough?
Yes. Sewer and water line repair and replacement is core work for us in built-up parts of Sussex County like Andover Borough, including tight-access digs and emergency line breaks. Many homes here built between 1945 and 1972 still have Orangeburg sewer laterals, a wood pulp and tar pipe that fails with age, and replacing those laterals is routine work for us.
Are you licensed and insured to work in Sussex County?
Yes. JWSR LLC is a licensed and insured New Jersey contractor, and we work across Sussex County and six other counties. We pull the permits, mark out, and do it by the book.
We also serve these towns near Andover Borough
Need excavation in Andover Borough?
Free on-site estimates and 24/7 emergency service, about 20 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510