How long does it take to install a standby generator?
It depends mostly on the system you choose. The biggest factors are whether the generator is in stock, the manufacturer's lead time, and coordination with your utility company. At Corrigan Generators, we give you the lead time for your brand when you place your order, and you generally receive a completion date up front when we schedule your installation, not an open-ended window.
From your first call to your final walkthrough, the process follows nine steps. Knowing them ahead of time means no surprises along the way.
What affects a generator installation timeline?
Equipment lead time has the biggest effect, but several things can shape your schedule:
Whether the system you choose is in stock
Manufacturer lead times, which vary by brand and model
Whether your gas meter needs an upgrade, which is coordinated with the utility
Scheduling the gas connection
The time you take to review your proposal and decide
Lead times are one of the details we compare during your site evaluation, because they can affect your completion date.
What are the steps to install a standby generator?
Here is the process we follow for every home generator installation.
Step 1: Request your appointment. Call our office or submit a request online. A member of our team follows up within 24 hours, Monday through Friday, excluding holidays, to schedule your site evaluation.
Step 2: Site evaluation and sizing. A Corrigan project manager walks your property with you, reviews your panel, gas service, and existing equipment, and identifies the right location for your system.
Step 3: Detailed recommendation. We recommend the system that fits your home and explain clearly why we selected it.
Step 4: Written proposal. You receive everything in writing, with a copy for your records. We will hand-deliver it whenever that is more convenient for you.
Step 5: Approval and order. A deposit is required because of the cost of the equipment. Once your order is placed, we provide the lead time for the brand you selected.
Step 6: Scheduling. When your generator arrives at our shop, our office contacts you to set your installation dates.
Step 7: Setting your system. We lay a bed of gravel, set a solid pre-formed concrete pad, and place your generator on it.
Step 8: Gas connection. Your system is connected to natural gas or propane. We provide a gas contractor and coordinate with them, or you are welcome to use your own. If your gas meter needs an upgrade, our contractor coordinates it with the utility company.
Step 9: Final installation and walkthrough. We complete the electrical work, test your system, and walk you through it. You will know how to shut the system down and restart it, what to expect while running on generator power, and what to avoid. Then we hand you the key and all of your documentation.
What happens during the site evaluation?
A project manager walks your home with you, inside and out. Inside, we review your electrical panel, gas service, and the age and capacity of your furnace, water heater, and air conditioning. Outside, we find a location with proper clearance from windows and doors, good ventilation, a sensible route between your gas and electric meters, and room for the pad without disrupting your landscaping.
The goal is a recommendation based on your real power demand, not an estimate.
Why is a deposit required before ordering?
A standby generator is a significant piece of equipment, and a deposit is required because of its cost. The deposit comes after you have seen the recommendation and the written proposal, so you know exactly what you are approving before anything is ordered.
What is included with every Corrigan installation?
Every generator we install includes:
Remote monitoring, so we see your system run its weekly exercise and see it when it reports a problem
The first year of service and monitoring
A cold weather kit with oil warmers and battery warmers
A solid pre-formed concrete pad on a bed of gravel
Why start the process before you need it?
Because the steps before installation take time. The site evaluation, recommendation, and proposal come first, then the order and the manufacturer's lead time. Homeowners who start early can review their options without a deadline pressing on them and choose the system that fits, rather than the one that happens to be available.
Is the process different for business generators?
The steps are similar, with a few additions. For businesses, we schedule the site evaluation around your operating hours, work with you to identify what has to stay powered, and handle permitting and inspection coordination. After installation, we test the completed system under load and walk your team through how it operates.
Generator Installation in Louisville and Southern Indiana
Corrigan Generators installs standby generators for homes and businesses across thirteen Kentucky counties and seven Southern Indiana counties, including Jefferson, Oldham, Bullitt, Shelby, Spencer, Nelson, Hardin, Clark, Floyd, and Harrison. We are the generator division of Corrigan Electric, family-owned in Louisville since 1995, and we have installed and serviced generators since 2004.
We are a certified dealer and service provider for Briggs & Stratton, Generac, and Kohler. Request an appointment online or call 502-267-4600, Monday through Friday, 7:30 AM to 5:00 PM.
Is there still time for the launch special?
Yes, if you start now. To celebrate the launch of Corrigan Generators, we are offering $1,500 to $2,200 off the normal proposal price of a Briggs & Stratton standby generator, based on the size of the unit selected.
Your deposit must be received by the end of the day on November 30, 2026, to qualify. Since the site evaluation, recommendation, and written proposal all come before the deposit, request your appointment soon to leave yourself time to review your proposal.
Savings based on unit size. Off normal proposal price. Deposit must be received by end of day 11/30/26.
Frequently Asked Questions
Who does the site evaluation?
A Corrigan project manager. They walk your property with you, review your panel, gas service, and existing equipment, and determine the size and location that fit your home.
Can I use my own gas contractor?
Yes. We provide a gas contractor and coordinate with them for you, but you are welcome to use your own. If your gas meter needs an upgrade, it is coordinated with the utility company.
Will I know when my installation will be finished?
Generally, yes. When your generator arrives at our shop, our office contacts you to set your installation dates, and you usually receive a completion date up front rather than an open-ended window.
Is the concrete pad included?
Yes. Every generator we install sits on a solid pre-formed concrete pad set on a bed of gravel. It is solid concrete, not composite.
Know What to Expect Before You Start
A standby generator is a big decision, and you should know every step before you commit to one. With Corrigan Generators, you get a clear recommendation, a written proposal, and a completion date, with the same team guiding you from the first call to the final walkthrough.
👉 Request an appointment with Corrigan Generators today, or call 502-267-4600.
You know us at Corrigan, give us a call. Your Generator Dealer & Service Provider!