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Electrical expertise wired
for today. Connected to what's next.

From design-build and new construction to power distribution and facility maintenance, Sinnott delivers safe, reliable electrical solutions that keep businesses moving forward.

Connect with us

Who are we

The power of knowledge

Since 1981, Sinnott Electrical has served Maryland as a commercial electrical contractor, bringing experienced people and practical thinking to projects of every scale. We diagnose challenges accurately, make informed decisions, and refuse to compromise on craftsmanship.

Our expertise extends beyond traditional installations and repairs to EV charging, data systems, standby power, building management, refrigeration controls, and energy upgrades. From code compliance to cost and schedule coordination, we make every decision count.

Licensed Engineers

PE certified professionals

ISO 9001 Certified

Quality management

NEC Compliant

Code expertise

Safety First

OSHA certified

+
Projects
+
Engineers
+
Years
+
Sites nationwide

Sectors

Connected to every sector

From distribution centers to public spaces, Sinnott understands
the distinct electrical demands of every industry.

Services

From first connection
to final commissioning

The team at Sinnott plans thoroughly, coordinates closely, and executes with care at every stage. From temporary power setup and electrical installation to testing, commissioning, and life safety systems, our experienced electrical technicians keep quality, compliance, and the progress of your project firmly in focus.

  • Temporary Power Supply Setup
  • Electrical Installation
  • Testing & Commissioning
  • Fire Alarms & Emergency Lighting Systems

Let's get your project
powered up

Tell us about your goals, your constraints, and your toughest electrical challenges. Then we'll come back to you with clear estimates, practical alternatives, and a coordinated delivery plan to help protect your budget, keep work on schedule, and build with confidence.