How Does a Generac Generator Cost? (Complete Guide)
Introduction to Generac Generators
Power outages can happen anytime, and that’s exactly where Generac generators come in. Generac is one of the most trusted names in backup power solutions, but one common question buyers ask is: “How much does a Generac generator cost?”

The answer depends on several factors, including the type of generator, size, and installation needs. Let’s break it all down so you know what to expect before investing.
Generac generators are among the most trusted backup power solutions in the United States. They are designed to keep your home or business running smoothly during unexpected power outages. From small portable units that handle basic appliances to powerful standby systems that can run an entire house, Generac offers a wide range of options.
When people think about getting one, the most common question is about the Generac generator cost, including installation. The truth is, the price can vary depending on the size of the unit, the type of fuel it uses, and the complexity of the installation. But no matter the model, Generac generators are known for their reliability, durability, and long-term value, making them a smart investment for anyone looking for dependable backup power.
What is a Generac Generator?
A Generac generator is a backup power system designed to automatically provide electricity when the main power goes out. These generators can run on natural gas, propane, or diesel, depending on the model.
Why Homeowners and Businesses Prefer Generac
Generac is popular because of its reliability, durability, and strong customer support. Whether it’s a small portable unit for camping or a standby generator that powers an entire house, Generac offers solutions for every need.
Factors That Affect Generac Generator Cost
When people ask, “How does a Generac generator cost?”, the answer isn’t simple because several factors influence the final price. The overall cost depends largely on the size of the generator, the type of model you choose, and whether it’s a portable unit or a standby system. Installation fees also play a big role since standby generators require professional setup, fuel connections, and sometimes even permits.

Additional features like Wi-Fi monitoring, automatic transfer switches, or extended warranties can further impact the price. In short, the cost of a Generac generator is shaped not just by the unit itself, but also by the level of convenience, power capacity, and reliability you expect from it.
Generator Size and Power Capacity
The larger the generator and the higher its power output, the more it costs. Small portable units may power just a few appliances, while whole-house standby systems can run everything, including HVAC.
Type of Generator (Standby vs Portable)
- Portable Generators: Usually less expensive and easy to move, but they require manual operation.
- Standby Generators: Permanently installed outside your home, they start automatically when the power goes out. These are more costly but provide maximum convenience.
Installation and Labor Charges
Standby generators require professional installation, which includes electrical work, plumbing for fuel lines, and permits. These costs often add a few thousand dollars to the overall price.
Additional Accessories and Features
Features like Wi-Fi monitoring, automatic transfer switches, or extended warranties can raise the price but also improve usability and peace of mind.
Average Cost of Generac Generators in 2025
When planning to buy a Generac generator in 2025, one of the first things homeowners ask is: “How much does a Generac generator cost for a 2,000 square foot house?” On average, a standby Generac generator suitable for a home of this size can range between $5,000 and $12,000, including installation.

The final price depends on factors like the generator’s power capacity, installation complexity, and whether additional features such as Wi-Fi monitoring or automatic transfer switches are included.
For smaller homes or those needing only partial backup, portable Generac generators may cost anywhere between $500 and $3,000, making them a more budget-friendly option. However, for whole-home coverage, especially for a 2,000-square-foot house, a standby model remains the most reliable and long-term investment.
Cost of Portable Generac Generators
Portable models generally cost between $500 $3,000, depending on their size and features.
Cost of Standby Generac Generators
Standby models are more expensive, ranging from $2,500 to $10,000 for the unit itself. With installation, the total cost usually falls between $5,000 and $15,000.
Maintenance and Operating Expenses
Like any machine, generators need regular oil changes, inspections, and occasional repairs. Annual maintenance can cost between $200 and $500. Fuel costs will also vary depending on usage.
Generac Generator Cost Comparison
When comparing the cost of Generac generators, it’s important to look at more than just the base price. Portable models are usually budget-friendly, starting from a few hundred dollars, while standby units can cost several thousand dollars depending on the size and power capacity.

For example, many homeowners often ask, “How much does it cost to install a Generac 22kW generator?” On average, the generator itself can range between $5,000 and $6,000, but when you add professional installation, electrical work, and permits, the total cost may rise to $10,000–$12,000.
Generac’s standby systems are more expensive upfront, but they offer unmatched convenience by automatically powering your home during outages. Portable models, on the other hand, cost much less but require manual setup and fueling. By comparing the two, buyers can decide whether the long-term reliability of a standby system outweighs the lower cost of a portable unit.
Generac vs Other Generator Brands
Generac generators are often priced slightly higher than some competitors, but they are known for their long-term reliability, warranty coverage, and nationwide service availability.
New vs Used Generac Generators
Buying a new generator ensures warranty protection and the latest technology, while used generators may save you money upfront, but could lead to higher repair costs later.
How to Save Money on a Generac Generator
Buying a generator is a big investment, but there are smart ways to reduce the overall cost without compromising on quality. One of the best strategies is to compare Generac generator prices at Home Depot with other authorized dealers. Retailers often run seasonal promotions, especially during storm seasons or major holidays, which can help you secure a lower price.

Another way to save money is to carefully choose the right size generator for your home’s needs—purchasing a model that’s too large for your actual requirements can lead to unnecessary expenses. Additionally, keeping an eye out for financing options or package deals that include installation can also help cut down on upfront costs. With the right planning, you can enjoy reliable backup power while staying within your budget.
Buying During Seasonal Discounts
Retailers often provide discounts during storm season or major sales events. Timing your purchase during sales or seasonal discounts can easily help you save a significant amount of money.
Choosing the Right Size for Your Needs
Don’t overbuy a larger generator if you only need backup for essentials. A properly sized generator lowers both upfront and ongoing costs.
Considering Financing Options
Many dealers and installers offer financing plans, allowing you to spread the cost over time instead of paying everything up front.
Is a Generac Generator Worth the Investment?
Whether a Generac generator is worth the investment ultimately depends on your long-term power needs and how much you’re willing to spend within your budget. Many homeowners ask, “How does a Generac generator cost in 2025?” because pricing is an important factor in deciding.

While the upfront cost of a Generac generator can seem high compared to other backup solutions, its reliability, durability, and ability to automatically restore power during outages make it a strong long-term investment.
Unlike temporary power options, a Generac generator offers peace of mind, ensuring your essential appliances, security systems, and even heating or cooling stay running no matter the situation.
Over time, this can save you from costly food spoilage, business downtime, or medical risks during blackouts. Considering these benefits, most homeowners find that a Generac generator is not just an expense—it’s a valuable investment in safety and comfort.
Long-Term Value and Reliability
While the initial cost may seem high, Generac generators provide excellent long-term value. They can last 20+ years with proper care and ensure you’re never left in the dark.
Safety and Peace of Mind During Power Outages
Beyond convenience, generators provide critical safety—keeping medical devices, refrigerators, and heating/cooling systems running even during extended outages.
Final Thoughts
When it comes to understanding how a Generac generator costs, the answer depends largely on your home’s size, power needs, and installation requirements. For example, many homeowners ask, “How much does a Generac generator cost for a 1,500 square foot house?” On average, a standby unit for this size of home can range between $5,000 and $8,500, including installation.
Although the initial price might seem high, the long-term advantages—like reliable backup power, protection for your essential appliances, and peace of mind—make it a smart investment. In the end, choosing the right Generac generator is less about the sticker price and more about the value it brings to your home and lifestyle.
So, how does a Generac generator cost? The price can range from just a few hundred dollars for portable models to well over $10,000 for a fully installed standby system. Factors like size, installation, and added features play a big role in determining the final cost.
If you want reliability, long-term value, and peace of mind, a Generac generator is an investment worth considering.
FAQs: (How Does a Generac Generator Cost?)
How much does a Generac generator cost?
Most home standby generators in the U.S. can be financed for as little as $109 per month, with total expenses ranging from $8,000 to $16,000. This includes the Generac Generator, System Equipment & Materials, and Installation. For more information on financing options or to receive a personalized quote, please reach out to an Authorized Generac Dealer.
What Size Generac for a 2000 sq ft house?
Are you curious about the appropriate generator size for a 2,000-square-foot residence? You will require a Generac generator with a rating between 14 kW and 22 kW, depending on your specific power requirements. If you intend to power only essential appliances such as lights, a refrigerator, and a furnace, a generator rated at 14-16 kW will suffice.
How much does it cost to install a whole-home generator?
The average cost for installing a whole-house generator typically falls between $7,000 and $15,000. Homeowners generally invest this amount for a fully installed system. The costs can fluctuate based on several critical factors, including your energy consumption, labor expenses, local regulations, and unique characteristics of your home.
Are Generac generators overpriced?
Generac has built a reputation for durability and quality, which often explains why its price is slightly higher compared to lesser-known brands.
Can a Generac power an entire house?
After installing a 22 kW Generac generator, we feel at ease during power outages, knowing it will automatically switch on and restore electricity to the house within seconds. It effortlessly powers the entire home.
How much does a generator cost for a 2000 sq Ft house?
Total Costs for a 2,000 Sq Ft House. A home measuring 2,000 square feet typically necessitates a generator with a capacity of 20,000 to 24,000 watts for comprehensive coverage. When factoring in the generator, installation, and required accessories, the total cost is estimated to be between $7,000 and $15,000.
How long do Generac Generators last?
Nonetheless, with appropriate care and regular maintenance, a well-installed Generac standby generator can deliver dependable service for an impressive 20 to 30 years, or even longer. This durability is a significant advantage over portable generators, which generally have a shorter average lifespan of merely 10 to 15 years.