Warren, NJ
Roofing in Warren, NJ: A Mountain, Two Watersheds, 5,560 Homes
Which side of the Watchung ridge is your roof on? The Second Watchung Mountain runs through Warren, with the north half draining toward the Passaic and Dead rivers and the south half dropping into Washington Valley. A stain, a loose shingle or a spilling gutter is a fine reason to call (908) 827-6709 and talk it through. Roof leak repair is the place to start.
The houses here
Census Reporter's 2024 profile counts 5,560 housing units in Warren Township, give or take 279, and puts the median home value at $930,800, give or take $34,744. Somerset County's median is $552,100 and New Jersey's is $454,400. The profile gives no year-built breakdown, so none is quoted; the age of your own roof is the number worth digging for.
Next door
Who shares a border with Warren
Four of the other five towns served here touch Warren inside Somerset County. Bernards roofing lies to the north and west, Bridgewater roofing to the southwest, Green Brook roofing to the southeast and Watchung roofing to the east.
Across the county line, Long Hill roofing covers the Morris County township on Warren's northeast side.
Have these ready
What to have beside the phone in Warren
Jot down the street address, which room shows water and whether the stain grows after each rain. If anyone knows the year the roof went on, add it. A photo from the lawn and one from the attic hatch save a round of questions.
Homeowners can call (908) 827-6709 when it suits them. If you rent, the roof is the owner's to arrange, so send your photos to whoever collects the rent and ask them to call. A wire down in the street goes to 911 or the electric company first; the Township's FAQ names JCP&L and PSE&G as the providers here.
Through the seasons
Warren's year by the Somerville thermometer
The nearest station with published normals is Somerville Somerset Airport, about 8.6 miles from the business address and 404 feet lower than the township's listed elevation of 509 feet. A street on the ridge may read differently. Over 1991 to 2020 the monthly rainfall adds up to 45.49 inches, with August the wettest at 5.18 and February the driest at 2.20.
The low reaches freezing on about 124 days a year, from October into May and mostly in winter. FEMA's roof fact sheets suggest a look in spring and again in fall.
Where the water goes
Two watersheds under one township
Wikipedia describes the Second Watchung Mountain bisecting Warren. North of it, the land slopes toward the Passaic River and the Dead River. South of it lies Washington Valley, where the East Branch of Middle Brook runs.
Which way a lot falls decides where a downspout's water goes next. The Township's Public Works office, 908-753-1223 on its FAQ page, looks after catch basins and trees in the public right-of-way. The EPA's advice for downspouts is to steer them to a rain barrel or soil that can take the water.
Where this comes from (9)
- Wikipedia, Warren Township, New Jersey
- Census Reporter, Warren township, Somerset County, NJ, ACS 2024 5-year profile
- NOAA National Centers for Environmental Information, 1991-2020 monthly normals, Somerville Somerset Airport (USW00054785)
- Warren Township, Frequently Asked Questions
- PSE&G, Electric tariff, Territory Served
- PSE&G, Downed power lines
- FirstEnergy, Downed power lines
- U.S. EPA, Soak Up the Rain: Disconnect and redirect downspouts
- FEMA, Fact Sheet 3.3.1: Roof Systems, Sloped Roofs (Mar 2022)
Checked 1 Nov 2026
Have these ready
Start with the street address, the room that shows water and a guess at the roof's age, then call (908) 827-6709. Renters can pass their photos to the owner, who arranges roof work.