Electrical Contractor Shrewsbury MA | Call McGrail Electrical Services

Frequent breaker trips are often a sign of an overloaded panel, a common issue in older Shrewsbury homes as families add more appliances. Our comprehensive electrical inspection will assess your entire system's capacity and load distribution. We'll identify if your panel is outdated or if specific circuits are overloaded, providing a clear report and recommendations—whether it's a panel upgrade, adding dedicated circuits, or rewiring—to make your home safer and more functional.

A generator transfer switch is critical for safely connecting a portable generator to your home's electrical system. An improper or faulty installation can back-feed power into utility lines, creating a severe hazard for utility workers and neighbors. Our inspection ensures your existing or newly installed transfer switch is correctly rated, properly wired, and meets all local Shrewsbury and national electrical codes, guaranteeing safe operation during a power outage.

Our standard inspection is a proactive health check for your home's electrical system. We examine your main service panel for signs of overload, corrosion, or outdated components like Federal Pacific or Zinsco breakers. We check wiring for proper grounding, look for unsafe DIY modifications, test GFCI and AFCI outlets (crucial in kitchens and bathrooms), and assess the overall system's capacity against your current usage. This helps us spot potential fire risks or code violations common in Shrewsbury area homes before they become emergencies.