Electricians in Rockville, MD 20855

3 electricians, with local market data for this ZIP.

Area profitability, electrical work70 / 100Strong market, crowded field
Typical home value$674,000−0.3% in the past year
New homes permitted, 20251,411Montgomery County
Homeowners74.4%6,042 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

Castro Electrical ServicesElectrician · 7524 Standish Pl Ste 150, Rockville(240) 474-5567 · castroelectricalservices.com
Castro Electrical ServicesElectrician · 7524 Standish Pl Ste 150, Rockville(240) 774-2572 · castroelectricalservices.com
M.R. ElectriciansElectrician · 15754 Crabbs Branch Way, Derwood(301) 871-0477 · mrelectricians.us
Trunnell ElectricElectrician · 15754 Crabbs Branch Way, Derwood(301) 258-8300 · trunnellelectric.com

Electrical work in ZIP 20855 at a glance

Local building angle: Montgomery County permitted 1,411 new homes in 2025, including 559 apartment units. 24% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.