What Is the Cost of a Whole-Home Generator?

As a fierce storm rolls into Dallas wind howls and the lights go out. As you search your closet for the battery-operated candles purchased for this exact occasion, muttering about how you just stocked up at the grocery store, you wonder how long your power will be out this time—and is it too late to look into a whole-home generator like your neighbor had installed?

Of course not!

As you consider the convenience of uninterrupted electricity, one burning question stands out: How much does a whole-home generator cost?

Many factors contribute to the overall cost of a whole home generator. While it’s not a one-price-fits-all purchase, it is an investment that can add value to your property and keep your household running smoothly during outages.

The experts at Generator Authority break down the key considerations that impact the cost of a whole-home generator, from the equipment itself to the installation process. We’re here to help you understand what to expect so you can make an informed decision.

How Much Is a Whole-Home Generator?

The cost of a whole-home generator encompasses a wide range between thousands to tens of thousands of dollars.

The true answer for how much a whole-home generator costs depends on various factors, including the generator’s size, type, location, labor cost, and installation requirements. Let’s break down these considerations to provide a clearer picture of the costs involved so you can plan accordingly.

Factors That Influence Generator Costs

Size of the Generator

The size of the generator is directly tied to the amount of power your Dallas home requires. Larger generators with higher kilowatt (kW) ratings can run more appliances and systems simultaneously but are more expensive. To determine the appropriate size, consult with a Generator Authority professional to calculate your home’s load requirements.

Type of Fuel

Whole-home generators typically run on one of the following fuel sources:

• Natural Gas: Convenient for homes already connected to a gas line.
• Propane: A common choice for homes in rural areas without natural gas.
• Diesel: Typically used for commercial or large residential applications.

Installation Requirements

Another critical cost factor is the complexity of installation. Professional installation is non-negotiable for whole-home generators due to the need for permitted electrical and plumbing work.

Installation costs of a whole-home generator (excluding the cost of the generator) can range from $2,000 to $10,000, with an average of around $7,000. This wide range varies because of the following:

• Electrical Upgrades: If your home’s electrical system needs an upgrade, such as a new transfer switch or [electrical-panel], expect to pay more.
• Fuel Availability: Natural gas and propane are often more economical and widely available than diesel.
• Plumbing Upgrades: If a gas line isn’t available, you may need to install a new one, which can greatly increase the installation cost. Alternatively, you could purchase a propane tank or opt for a diesel model.
• Foundation Preparation: Larger generators often require a concrete pad, which adds to labor and material expenses.
• Permits: Local governments require permits for installation, which could cost anywhere from $100 to $500 or more.

Location

Where you live can influence both the generator’s price and installation cost. For example:

• Climate Considerations: Homes in areas with extreme weather may need additional protective features, like weatherproof enclosures. Products in more rural areas may have higher costs due to shipping or special ordering.
• Labor Costs: Labor rates vary by region, so installation could be more expensive in high-cost-of-living areas. More experienced companies may also charge more to account for their industry knowledge and skill; though the overall time to install a generator may be far less.

Additional Features

Modern generators can come equipped with a range of features, such as remote monitoring, noise reduction, and automatic start capabilities. While these add convenience, they can also increase the overall price.

The Base Cost of a Whole-Home Generator

The generator itself typically represents the largest portion of the expense. Whole-home generators range widely in price depending on their power output and features.

Here’s a general breakdown according to data collected by HomeGuide. The prices shown reflect the cost of the unit only (not including installation).The final price can depend on the exact size, type, brand, fuel sources, and any accessories purchased.

Size	Typical Price Range	Power Coverage
13–16 kW	$3,000–$4,500	A 1,500 sq ft or smaller home.
17–20 kW	$4,000–$6,000	A 1,500 to 3,000 sq ft home.
22–25 kW	$4,500–$12,000	A 3,000 to 5,000 sq ft home.
30–48 kW	$10,000–$16,000	A 5,000+ sq ft home or commercial property.

Ongoing Costs of Whole-Home Generator

Owning a whole-home generator doesn’t end with the initial investment. Regular maintenance and operational expenses are essential to keep the system running efficiently.

Maintenance

Generators require routine maintenance, including oil changes, air filter replacements, and inspections. Extended warranties or service plans can add to this expense but could help offset any repair costs. Generator Authority provides whole-home generator maintenance; after we install it, we can help you take care of it.

Fuel Costs

The fuel cost varies depending on your generator’s usage and the price of natural gas, propane, or diesel in your area. How much fuel you may consume will also vary depending on your location—areas prone to rolling blackouts or more severe weather may need to run their generator more often.

Repairs

While high-quality generators are built to last, occasional repairs may be needed as the system ages. Parts like batteries, starters, and fuel systems can wear out over time and need to be replaced. Annual maintenance can help you monitor for worn-out parts and reduce the likelihood of a complete breakdown.

Is a Whole-Home Generator Worth the Investment?

For many homeowners, the peace of mind that comes with uninterrupted power is priceless. A whole-home generator can:

• Prevent food spoilage during outages.
• Maintain essential systems like heating and cooling.
• Continue to power medical devices.
• Allow security systems and features to remain functional.
• Increase the resale value of your home.

While the upfront cost can seem significant, the benefits often outweigh the expense, especially for homes in areas prone to power outages.

Get a Free Whole-Home Generator Estimate

Several variables, including size, fuel type, installation complexity, and location, influence the cost of a whole-home generator. By understanding these factors and consulting with a professional, you can find the right solution for your home and budget.

When you’re ready to explore your options, contact a trusted installer at Generator Authority for a personalized quote. Call us at 817-984-3600 or request service online. We are available to serve the greater Dallas area.