Thinking about buying a Generac generator? Many homeowners glance at the price tag on the unit itself and think they’ve got the budget figured out. But here’s the catch: the Generac generator cost you see online or in a store is just part of the picture. Once you factor in installation, permitting, and the right generator size for your home, the actual total can look very different.
This blog will walk you through the true cost of owning a Generac generator—so you’re not hit with surprises after the fact. At Super Fast Electric, we’ve installed countless Generac systems across Central Florida, and we know exactly where homeowners tend to underestimate the price.
1. Why the “Unit Price” Isn’t the Full Story
When you search for Generac generators, you’ll usually find unit prices ranging from a few thousand dollars up to $10,000+. It’s tempting to assume that’s all you’ll pay. But the real cost depends on far more than the sticker price.
Homeowners often forget to budget for:
- Professional installation (which can equal or even exceed the unit price)
- Electrical upgrades to panels or wiring
- Permitting and inspections required by local codes
- Concrete pad or site preparation for the generator to sit on
Skipping these details can lead to frustration—and worse, unsafe setups. That’s why understanding the full Generac generator cost is essential before making your decision.
2. Generac Generator Installation: The Biggest Variable
One of the most significant factors in the final bill is the Generac generator installation itself. Unlike plugging in a portable generator, standby systems require professional expertise.
Here’s what’s involved:
- Connecting to your electrical system: Ensuring safe transfer switch installation.
- Fuel source hookup: Whether natural gas or propane, a licensed technician must install proper connections.
- Permits and inspections: Local municipalities often require paperwork and site checks.
- Testing and certification: To make sure your system runs reliably when the power goes out.
On average, installation can add anywhere from $3,000 to $6,000 to the base unit price, depending on complexity. Without a clear plan, homeowners can easily underestimate this portion of the cost.
3. Generac Generator Pricing by Size
Not every home needs the same generator. Generac generator sizes play a huge role in both unit cost and installation fees.
- Smaller homes (7kW–11kW): These can handle lights, appliances, and some HVAC, with unit prices around $2,500–$4,000.
- Medium homes (14kW–20kW): Enough power for most households, typically $4,000–$6,500 for the unit.
- Large homes (22kW–30kW+): Designed to power the entire house, with pricing starting at $7,000 and climbing to $10,000+.
Choosing the wrong size is one of the most common mistakes. A generator that’s too small won’t keep your home running during an outage, while one that’s too large adds unnecessary expense. That’s why sizing guidance from a licensed electrician is critical when evaluating Generac generator pricing.
4. Hidden Costs Homeowners Overlook
Even beyond installation and unit price, there are smaller expenses that add up:
- Concrete pad or base prep: $500–$1,000
- Upgrading an outdated electrical panel: $1,000–$3,000
- Fuel tank installation (for propane users): $1,500–$3,000
- Routine maintenance: Around $200–$300 per year for tune-ups and oil changes
While none of these items alone might seem overwhelming, together they can raise the full Generac generator cost by several thousand dollars.
5. Why Planning Ahead Saves Money
The good news? Knowing the true cost upfront means you can plan realistically and avoid financial surprises. With professional guidance, you’ll:
- Get the right Generac generator size for your needs
- Understand all installation requirements before purchase
- Budget for permits, inspections, and site prep
- Avoid rework or costly fixes from DIY mistakes
At Super Fast Electric, we help homeowners map out the entire project cost before installation begins—so you know exactly what to expect.
6. The Value of Professional Installation
Yes, hiring experts adds to the bottom line, but it also protects your investment. A professionally installed generator means:
- Safer connections to your home’s electrical system
- Compliance with local codes and inspections
- Reliable performance during emergencies
- Better long-term value and fewer breakdowns
When a storm hits and thousands of homes lose power, that peace of mind is worth every penny.
7. Final Thoughts: What You’ll Really Pay
So, what’s the full Generac generator cost? For most homeowners, expect to pay:
- Unit price: $3,000–$10,000+ depending on size
- Installation: $3,000–$6,000
- Extras and upgrades: $2,000–$5,000 depending on your home setup
That means the total often falls between $8,000 and $20,000. While it’s a major investment, it’s also one of the best ways to protect your home and family during hurricane season or unexpected outages.
If you want to skip the guesswork, get in touch with Super Fast Electric. We’ll help you choose the right Generac generator size, provide transparent pricing, and handle the entire installation process from start to finish.
👉 Visit SuperFastElectric.com to schedule your consultation and get a customized estimate today.
