Excavation & Underground Utilities in Hanover, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Hanover and across Morris County. Hanover sits about 24 miles south of our Hamburg yard, roughly 35 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 24 miles from Hanover, working across Morris County. Essentially all of Hanover's land area sits inside a public water delivery area, shared between 2 systems, the largest being South East Morris County MUA. About 80.1% of the town is inside a sewer service area, the largest run by Hanover SA WWTP, 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.
Around Hanover, we deal with a lot of ledge rock
Hanover sits in the New Jersey Highlands, where the bedrock is ancient, hard gneiss and granite that often sits close to the surface. Because that rock resists erosion, digging here regularly runs into ledge, and it takes the right equipment to get through it.
We bring in the bigger machines and the tools to break out and remove ledge rock so the job keeps moving, whether it is a foundation, a utility trench, or a septic field. Rocky ground is where experience really shows. 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: Call 811 before you dig. Every job, every time · Understanding excavation costs
Sources: New Jersey's Highlands geology (gneiss & granite bedrock) · NJ Geological Survey bedrock map of Sussex County
Morris County runs from busy suburban neighborhoods to wooded hillsides, and the work follows suit, from tight utility repairs to regrading sloped lots that will not drain.
As a township, Hanover 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 Morris County. We show up when we say we will, and we leave your property graded and clean.
Services for properties in Hanover
Septic Installation in Hanover
New septic systems, replacements, and repairs, permitted and done right.
Learn more →Grading & Drainage in Hanover
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Driveways, Roads & Lots in Hanover
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Excavation in Hanover
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Sewer & Water Lines in Hanover
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in Hanover →Some of what we have been building
A look at recent excavation, utility, and site work from around Morris County and northern New Jersey.
What tends to be in the ground in Hanover
The biggest single stretch of building in Hanover came in the 1950s, though the township's 5,861 housing units are spread fairly wide across the decades.
The bigger issue here is the 45% 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 township 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.
Nearly all of Hanover is on public water
About 100% of Hanover’s land area sits inside a public water purveyor’s delivery area, shared between 2 different systems. The largest is South East Morris County MUA, then East Hanover Twp WD. Sewer is the other half of that, and here the two do not line up: about 80.1% of Hanover sits inside a mapped sewer service area against 100% for water, a gap of 20 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
SMCMUA for water, which the township co-owns, and the Hanover Sewerage Authority for sewer
Hanover is the mirror image of Morris Plains. It is one of SMCMUA's four creating municipalities on the water side, and on the sewer side it does not borrow anybody's plant, it has its own authority and its own works taking about 80 percent of the township. So both halves are locally controlled here, which usually means fewer offices to coordinate on a connection and a shorter route to an answer.
Most of Hanover is inside a sewer service area
About 80.1% of Hanover’s land area falls inside a mapped sewer service area. The largest share goes to Hanover SA WWTP, 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.
If you find water surfacing in Hanover, call this first
Before you call us, get the water shut off. A leaking service line washes ground out from under whatever sits above it and keeps running until somebody turns the curb valve.
In Hanover that is Southeast Morris County MUA, on 973-867-1758.
SMCMUA's 24-hour emergency line, and its offices are in Cedar Knolls inside the township. Daytime billing is 973-326-6880.
Once the water is off, the repair is ours. What replacing a water service involves, or what the first hour of a break looks like.
Read off Southeast Morris County MUA's own published page and re-checked periodically. If your bill carries a different name, that name is the one with your curb key. Much of New Jersey is served by New Jersey American Water, 1-800-272-1325, 24 hours.
Working in Hanover
How fast can you get to Hanover?
Hanover is roughly 35 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 Hanover?
Yes. Septic installs, repairs, and failed-field excavation are some of the most common jobs we do in Morris County townships like Hanover. We handle the dig, the tank, and the grading, and we leave the yard clean.
Are you licensed and insured to work in Morris County?
Yes. JWSR LLC is a licensed and insured New Jersey contractor, and we work across Morris County and six other counties. We pull the permits, mark out, and do it by the book.
Need excavation in Hanover?
Free on-site estimates and 24/7 emergency service, about 35 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510