How Much Does a Whole-House Generator Cost?

Professional Services
July 20, 2023

When the power goes out and you start to panic, having a whole-house generator system can make a difference for how the rest of your day goes. Instead of driving around and trying to charge cell phones in your car, you can stay comfortable and safe in your home.


However, you might wonder why generators are vital for power outages and storms and ask, "How much does a whole-house generator cost?"


In this guide, we explore why generators matter, the common types, and the factors that contribute to cost. We also address the average cost of whole-house generators and why professional installation is better than going the DIY route. 


At Professional Services, we're Port Washington's emergency generator installation team, and we can help you choose the perfect generator. Keep reading, then contact our trusted team at (262) 218-2636 for a consultation. We're ready to help you!


The Importance of Whole-Home Generators


Power going out is frustrating, stressful, and sometimes dangerous for those with essential medical equipment that needs electricity. While many homeowners think about portable generators from retailers for power outages, whole-house systems are potentially the better fit. Whole-home generators can keep families safe and comfortable during extreme weather and prevent businesses from experiencing costly disruptions. 


Whole-home generators are an investment that helps many property owners. For example, keeping the power on can keep the refrigerator on, which prevents your food from spoiling. Some homeowners may only need their lights and appliances on, while others must have their entire home running as normal, requiring a larger size.


Common Types of Generators


When booking an installation appointment, you'll need to decide what type of generator you prefer. The most popular types include:


  • Inverter generators
  • Portable generators
  • Natural gas generators
  • Portable power stations


What Contributes to a Whole-House Generator's Cost?


How much does a whole-house generator cost? Several factors add up to the total cost of a generator, such as:


  • Generator size
  • Output capacity
  • Installation costs
  • Fuel source
  • Generator type
  • Permits (if applicable)


All these factors and more can affect the cost of your whole-home generator. It's up to you what qualities of a generator you deem most essential, but every home should have some type of generator in the event a storm causes an outage. You don't want to sit idle without power or warm food. 


A gas generator is one of the more affordable options, but it cannot power an entire home and is unsafe to use indoors. Meanwhile, a diesel generator also uses fossil fuels and needs frequent refills to keep running. As for solar generators, they don't consume any fuel, are safer, and pair with solar panels.


Average Costs of Whole-House Generators


The total cost of a whole-house generator can range anywhere from $1,000 to $20,000, depending on size, generator type, fuel needs, and more. Exploring your options with a professional and getting multiple installation quotes can help you make the best decision for your home power needs and budget. Solar generators are an excellent investment since you don't have to stress about fuel costs or maintaining the system.


Installation costs can range from $500 to over $3,000, but permits can add another $200 or so. Electrical labor and the installation of a transfer switch may also increase costs by several hundred dollars. After solar, natural gas is the cheapest fuel source, followed by propane, diesel, and gas.


DIY vs. Professional Whole-House Generator Installation


You might think that DIY installation will cut down on some costs for your whole-house generator. This may seem like a good idea to save money, but you could end up spending more on faulty installation. The entire process has several complex steps that only an experienced professional should complete.


Professional installation with insurance and warranties will guarantee a flawless installation. You may need permits, depending on your location, and you could waste a lot of time and money by tackling it yourself. Get the job done right with the help of a trained and licensed professional in your area.


Contact Us for Whole-House Generator Installation in Port Washington, WI


Hopefully, we answered the question, "How much does a whole-house generator cost?" At Professional Services, our team can help you find the perfect home generator size and type for your property needs and compare your options in greater detail. We offer installation, maintenance, and emergency services for generators and are your go-to resource in Port Washington, WI.


Call Professional Services today at (262) 218-2636 to schedule an appointment or fill out our online form.

You might also like

July 25, 2025
Can you plug an AC into an extension cord? Call Professional Services 24/7 for emergency help so you don't risk a fire using the extension cord.
July 25, 2025
Can a bad AC compressor cause overheating? Let's find out how low refrigerant levels, dirty condenser coils, and other problems contribute to overheating.
July 25, 2025
Why does my AC compressor shut off after 2-3 minutes? Find out how electrical problems or thermostat issues might cause the problem in Thiensville, WI.

Book a Service Today