J&J Waterproofing System

General contractor in Dover, NJ 07801

Call (973) 452-8544Directions

About this company

J&J Waterproofing System is listed as a general contractor at 120 1st St in Dover, New Jersey, in Morris County. It is one of 27 general contractors in ZIP 07801.

Other construction companies nearby

Guscos Maintenance and Contractor52 Livingston Ave, Dover
0.4 mi(862) 944-2390
0.7 mi(973) 771-8245
RCM32 Willow Ave, Randolph
0.8 mi(973) 725-9692
Rob Keller Construction27 Harrison St, Dover
0.9 mi(973) 989-4004
D. Panetta Contracting7 Dyer Ln, Randolph
0.9 mi(973) 659-9374

Housing market around ZIP 07801

Figures describe the local area, not this company.

Typical home value$504,000+1.7% past year · +82% in 10 years
Typical rent$2,342
12-month value outlook+2.0%
New homes permitted, 20251,324Morris County
Days to sale agreement33New York metro · 32 a year ago
Listings with a price cut16.6%New York metro
Sale price vs list102.3%New York metro
New construction sales390New York metro, Aug · −29% from last year

Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.

Typical home value, last 10 years

$300K$400K$500K201620182020202220242026$504K

Source: Zillow Home Value Index, Sep 2026.

Local building angle: Morris County permitted 1,324 new homes in 2025, including 481 apartment units. 7% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.