Excavation & Underground Utilities in Mine Hill, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Mine Hill and across Morris County. Mine Hill sits about 19 miles south of our Hamburg yard, roughly 30 minutes out, so we can get a crew and the right machine there without a long wait.
Around Mine Hill, we deal with a lot of ledge rock
Mine Hill 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, Mine Hill 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 Mine Hill
Septic Installation in Mine Hill
New septic systems, replacements, and repairs, permitted and done right.
Learn more →Grading & Drainage in Mine Hill
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Land Clearing in Mine Hill
Clear brush, trees, and stumps and get your lot ready to build.
Learn more →Driveways, Roads & Lots in Mine Hill
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Excavation in Mine Hill
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Sewer & Water Lines in Mine Hill
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in Mine Hill →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 Mine Hill
The biggest single stretch of building in Mine Hill came in the 1950s, though the township's 1,463 housing units are spread fairly wide across the decades.
About 14% predates 1940, so there is a real pocket of clay and galvanized service in Mine Hill sitting alongside much newer stock.
The bigger issue here is the 51% 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.
Most of Mine Hill is on public water, but not all of it
About 72.8% of Mine Hill’s land area sits inside a public water purveyor’s delivery area, all of it served by Mine Hill Twp WD. That is land area rather than houses, so the properties on a well tend to be the outlying ones on bigger lots. Public water running past a house does not always mean the house is on it either, since plenty of properties 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.
Mine Hill is part sewered, part septic
About 33.1% of Mine Hill’s land area falls inside a mapped sewer service area. The largest share goes to Rockaway Valley Regional SA, 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 2026-08-25, 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 Mine Hill, 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 Mine Hill that is Mine Hill Township Water Department, on 973-366-9031.
Extension 1 at the municipal building, weekdays 9 to 4:30. The township publishes no leak line and no after-hours arrangement, so outside those hours the practical route is the police non-emergency desk, and say it is a water main.
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 Mine Hill Township Water Department'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 Mine Hill
How fast can you get to Mine Hill?
Mine Hill is roughly 30 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 Mine Hill?
Yes. Septic installs, repairs, and failed-field excavation are some of the most common jobs we do in Morris County townships like Mine Hill. 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.
We also serve these towns near Mine Hill
Need excavation in Mine Hill?
Free on-site estimates and 24/7 emergency service, about 30 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510