Caswell Testing & Water Systems
General contractor in Jarrettsville, MD 21084
About this company
Caswell Testing & Water Systems is listed as a general contractor at 3515 N Furnace Rd in Jarrettsville, Maryland, in Harford County. Federal motor carrier records list 3 drivers and 1 trucks for the company. It is one of 9 general contractors in ZIP 21084.
Other construction companies nearby
Plumb Construction Co.1207 Baldwin Mill Rd, Jarrettsville
1.0 mi(410) 557-4310
Kitchens by Request1115 Baldwin Mill Rd, Jarrettsville
1.0 mi(410) 557-6957
Emerald Builders Inc3957 Norrisville Rd, Jarrettsville
1.3 mi(410) 692-6196
SRG Construction4059 Norrisville Rd, Jarrettsville
1.8 mi(443) 224-6971
American Energy Solutions4154 Norrisville Rd, White Hall
2.2 mi(410) 692-5360
Housing market around ZIP 21084
Figures describe the local area, not this company.
Typical home value$545,000+3.6% past year · +54% in 10 years
12-month value outlook+0.3%Roughly flat
Days to sale agreement16Baltimore metro · 14 a year ago
New homes permitted, 2025715Harford County
Listings with a price cut30.2%Baltimore metro
Sale price vs list100.1%Baltimore metro
New construction sales122Baltimore metro, Aug · −37% 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
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Harford County permitted 715 new homes in 2025, including 137 apartment units. 14% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.