Generator Installation in Wellesley, MA

Generator sizing depends on the square footage of the home, the number and type of HVAC systems, and the scope of coverage desired. Many Wellesley homes — which tend to be larger than average — require 18kW to 24kW for whole-home coverage. We conduct a specific load analysis of your property before recommending anything.

Standby generator installations require both electrical and mechanical permits in Massachusetts. Castle Electric handles the permit applications on your behalf and coordinates all required inspections, so you don’t need to navigate that process yourself.

Yes. Oil-fired heating systems still require electricity to run the burner, fan, and controls. A standby generator keeps the heating system operational regardless of the fuel type. The generator itself runs on natural gas or propane — which is handled as a separate connection from your heating fuel supply.

The Mobile Link system connects your generator to Generac’s cloud monitoring platform via a Wi-Fi or cellular connection. You receive real-time status updates, alerts if the generator needs attention, and a log of all run history and maintenance reminders. It’s particularly useful for homeowners who travel and want to know their home is protected in their absence.

The outdoor installation work is self-contained. The main disruption inside the home occurs when we install and wire the automatic transfer switch, which typically requires a few hours with the main power off. We coordinate this timing with you to minimize impact on daily life.

Natural gas generators connected to the municipal gas line can run indefinitely during an outage, as long as the gas supply itself is maintained — which it virtually always is, even during significant storm events. This makes natural gas the preferred fuel option for extended winter outages in Massachusetts.