Installing a Standby Generator

Free On-Site Assessment

Every installation starts with a visit to your home. We’ll assess your property to:

At our consultation, we will need access to your electrical panel(s), the area for generator placement. Most air-cooled generators require the following clearances:

120 gallon propane tank with a natural gas meter

Fuel (Natural Gas or Propane)

Standby generators run on either natural gas or propane. Here’s what to know for each:

Natural Gas:

Connecticut requires a licensed plumber to connect the gas line from the generator to your gas utility meter. If your generator requires more gas capacity than your current meter provides, we’ll guide you through the upgrade process with Eversource or Connecticut Natural Gas for upgrading your gas meter.

Propane:

A licensed plumber is required for propane installations in Connecticut. Most whole-house generators need at least two 120-gallon tanks to cover 3-5 days of use during an outage. If you lease your tanks, your propane company handles the hookup. If you own your tanks, any licensed plumber can do the work. Tanks over 120 gallons must be placed at least 10 feet from your home.

Electrical Permit Application

Permits

Before we begin any electrical work, we submit permit applications to your town or city Every residential generator installation in Connecticut requires at minimum an electrical permit and a mechanical permit for the fuel line. If zoning or wetlands permits are also needed, we’ll walk you through that process too. Once permits are approved, we schedule delivery of your generator.

Next Generation Generac Generac Installed

Delivery

Our generators are delivered using our box truck with custom liftgate. Wheels are affixed to the sides of the generator, and the unit is transported over to the area for generator placement. The weight of a typical air-cooled generator is between 400-500 pounds.

Propane connection to the back of a Generac Generator

Gas Installation

Natural Gas: A licensed plumber will run a gas line from the gas meter up to the back of the generator. Local authority will then pressure test the line before final connection. Once the line is approved by the inspector, the plumber will return and connect the line to the generator.

Generac Generator Installation O.J. Mann Electric

Electrical Installation

Plan for a brief power outage on the day of electrical installation — typically between 4-8 hours as we are required to cut utility power before any wiring begins.

As part of the electrical installation, we install an Automatic Transfer Switch (ATS) — the device that monitors your utility power and signals the generator to start during an outage. The ATS is mounted outside either near your electrical meter or adjacent to your main electrical panel.

Generac Generator Field Pro

System Testing and Homeowner Walkthrough

After installation, we run a full system test to verify:

We’ll then walk you through how your system works, how to monitor it, and what to expect during a real outage. We’ll also present your service contract options. As part of our installation, we will remotely monitor your generator.

O.J. Mann Technician Generac Generator

Why Generator Maintenance Can't Be Skipped

Standby generators are mechanical systems with engines, batteries, filters, and software — all of which degrade over time. Without regular service, common issues like a dead battery, clogged fuel filter, or software fault can prevent your generator from starting during an outage — exactly when you need it most.

Routine maintenance helps you:

What's Included in a Generator Maintenace Contract

Our comprehensive generator maintenance visit typically includes:

All service is performed to manufacturer specifications for Generac, Kohler, and Briggs & Stratton generators.

Get a free, no-pressure generator quote today.

Not sure what size generator you need or how much it costs? We’ll come to your home, assess your power needs, and give you a straightforward quote — no pressure, no obligation.

Schedule Generator Maintenance Today

Don’t wait for the next outage to find out your generator isn’t ready. Schedule your annual service or sign up for a maintenance plan today.

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