Excavation & Underground Utilities in Mount Arlington, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in Mount Arlington and across Morris County. Mount Arlington sits about 16 miles south of our Hamburg yard, roughly 25 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 16 miles from Mount Arlington, working across Morris County. About 77.6% of Mount Arlington's land area sits inside a public water delivery area, shared between 4 systems, the largest being Mount Arlington Boro DPW Main, and the rest is on private wells. About 58.3% of the town is inside a sewer service area, the largest run by Musconetcong STP, 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.
Replacing aging driveways and walls in Mount Arlington
Mount Arlington is a long-established community, and in older neighborhoods the driveways, retaining walls, and drainage that went in decades ago are wearing out. A big part of what we do here is tearing out cracked, failing work and rebuilding it to last, often on tight lots where access takes real care.
We also do a fair amount of site work where older properties are being rebuilt or expanded. 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: Orangeburg pipe: the ticking clock under pre-1975 homes · What to expect when you get an estimate from us
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.
In a built-up borough like Mount Arlington, 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 Morris County. We show up when we say we will, and we leave your property graded and clean.
Services for homes and businesses in Mount Arlington
Sewer & Water Lines in Mount Arlington
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in Mount Arlington →Utility Construction & Repair in Mount Arlington
Water, sewer, and underground utility installation, trenching, and emergency repair.
Learn more →Excavation in Mount Arlington
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Driveways, Roads & Lots in Mount Arlington
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Grading & Drainage in Mount Arlington
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Retaining Walls in Mount Arlington
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 Morris County and northern New Jersey.
What tends to be in the ground in Mount Arlington
Mount Arlington has no one dominant building era. Its 3,019 housing units are spread across the decades, with the 1990s the largest single share at 20%.
Roughly 33% 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.
With 26% built since 2000, a good part of Mount Arlington is newer, and there the work is usually drainage and grading rather than pipe.
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 Mount Arlington is on public water, but not all of it
About 77.6% of Mount Arlington’s land area sits inside a public water purveyor’s delivery area, shared between 4 different systems. The largest is Mount Arlington Boro DPW Main, then Roxbury Twp WD - Shore Hills. Sewer is the other half of that, and here the two do not line up: about 58.3% of Mount Arlington sits inside a mapped sewer service area against 77.6% for water, a gap of 19 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
Mount Arlington does not produce its water. The borough's own report is plain about it: since the year 2000 the entire Mount Arlington system has been supplied by bulk water purchased from the Morris County Municipal Utilities Authority, whose source is groundwater from the Alamatong well fields in Randolph and Chester and from Flanders Valley. The borough still owns and runs the pipe in the ground, including the small former Mt. Arlington Service Company area around Kadel Drive, so the distribution side is local even though the water is not.
no water of its own, the entire borough system has been bulk water bought from the Morris County MUA since 2000
Mount Arlington is part sewered, part septic
About 58.3% of Mount Arlington’s land area falls inside a mapped sewer service area. The largest share goes to Musconetcong STP, 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 Mount Arlington, 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 Mount Arlington that is Mount Arlington Borough DPW, on 973-398-4200.
The borough runs the pipe in the ground but buys all of its water wholesale from the Morris County MUA, so the distribution side is local even though the supply is not.
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 Mount Arlington Borough DPW'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 Mount Arlington
How fast can you get to Mount Arlington?
Mount Arlington is roughly 25 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 Mount Arlington?
Yes. Sewer and water line repair and replacement is core work for us in built-up parts of Morris County like Mount Arlington, 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 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 Mount Arlington
Need excavation in Mount Arlington?
Free on-site estimates and 24/7 emergency service, about 25 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510