E.R. Roofing Company
Roofing contractor in Monrovia, MD 21770
About this company
E.R. Roofing Company is listed as a roofing contractor at 4790 Mid County Ct in Monrovia, Maryland, in Frederick County. It is one of 3 roofing companies in ZIP 21770.
Other roofers nearby
CR3 American Exteriors5070 Old Bartholows Rd, Mount Airy
0.9 mi(410) 709-6596
Home Tech Exterior11793 Fingerboard Rd, Monrovia
1.6 mi(301) 637-9019
Roofing Contractors DMV - Requeno’s construction29012 Ridge Rd, Mt Airy
3.7 mi(301) 473-0762
Window Genie of Frederick1302 Rising Ridge Rd Ste 1, Mount Airy
3.8 mi(240) 575-2300
PRG LLC - Roofing and Storm Restorations27421 Clarksburg Rd, Damascus
4.1 mi(240) 481-8870
Housing market around ZIP 21770
Figures describe the local area, not this company.
Typical home value$653,000+0.4% past year · +54% in 10 years
12-month value outlook+0.2%Roughly flat
Days to sale agreement19Washington metro · 17 a year ago
New homes permitted, 20251,168Frederick County
Listings with a price cut29.4%Washington metro
Sale price vs list99.7%Washington metro
New construction sales489Washington metro, Aug · −24% 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 roofing angle: 135 homes in this ZIP, 6% of the total, were built from 2000 to 2009, so they are now 17 to 26 years old. Only 35% were built before 1980.
Local figures are estimates from public records and Zillow housing data, updated regularly.