What is the average cost to install a Generac home generator?

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May 6, 2025

Introduction

Home generators offer a range of benefits, most notably, the reassurance of having a secure power supply during outages. If you’re looking for a generator for your home, it’s natural to think about the costs involved. From installation to running costs, it’s beneficial to understand how much you can expect to pay.

In this guide, we’ll explore the average cost of installing a Generac home generator. Generac is one of the leading generator manufacturers. If you’re considering investing in a Generac home generator, this article will help you determine how much it’ll cost. 

Generac generator installed next to brick building

What is the Average Cost to Install a Generac Home Generator?

The average cost of installing a Generac home generator is approximately $13,000, but prices vary. There are several factors that can impact costs, from the model and power output to installation fees and additional accessories and features. As a general guide, if you’re looking for a Generac home generator, which can power the entire house, you can expect the total cost, including installation, to be around $10,000- $15,000. 

Factors that Affect Home Generator Installation Costs

The cost of installing a generator in a residential property can vary hugely, depending on multiple factors. Key factors that affect costs include:

1. The size of the generator

If you’re searching for a Generac generator, which covers the whole house, the cost will be significantly higher than a generator that offers partial coverage. The larger the generator, the higher the purchase price. The biggest and most powerful generators, which provide the most comprehensive coverage, may cost up to $15,000 once installation costs are added.

When you shop for a home generator, it’s essential to choose the right product
based on the size of your home and the level of coverage you require. If you only need partial cover, or you have a small property, it’s important to choose the right generator to avoid overspending. If you want the highest level of coverage, paying for a higher-wattage generator will ensure high performance levels. For a small generator, which is easy to install and offers partial coverage, the price may be less than $5,000.

2. Installation costs

Professional generator installation services ensure seamless, efficient and safe installation in your home. The cost of installing a home generator varies according to the type and size of generator, the company you choose, and the complexity of the task. In some cases, installation is much simpler and faster than in others. If you live in an old house with old-fashioned electrics, or the layout of the property is awkward, costs may be higher than average. The cost of installation will also reflect the work required to place the generator, which may involve landscaping and trenching.

3. Fuel type

The type of fuel the generator uses can also affect the cost. In most cases, it’s more cost-effective to connect a generator to a natural gas line than to install a propane tank, but natural gas is not available in all areas. Your professional generator supplier and installation service provider will be able to offer advice based on your location, budget and preferences.

4. Accessories and extra features

Additional features and accessories can boost performance and enhance efficiency but they also add to the cost of installation. Examples include WiFi monitoring and quieter operating modes.

5. General maintenance

Once your Generac generator is up and running, you’ll need to factor in maintenance and upkeep costs. Regular services are beneficial as they reduce the risk of complex issues, lowering the risk of expensive repair costs while optimizing performance levels.

The Benefits of Professional Generac Generator Installation

If you’re investing in a Generac generator for your home, it’s important that you can take full advantage of all the benefits without any worries about safety or damage to your property. Hiring professional generator installation services provides peace of mind. 

The benefits of expert installation include:

  • Site preparation and precision placement: Installing a generator can be complex, especially if you have an old house, the layout is unconventional or landscaping is required. Experts have the knowledge and experience to prepare the site properly, choose the best location and execute precision placement. 

  • Safety: There are risks associated with installing a generator at home without the relevant training, expertise, equipment and experience. By working with professionals, you can stay safe and ensure your generator is fitted safely and securely to protect your home and family. 

  • Expert advice and maintenance: If you hire experts, they can provide tailored advice to help you make the most of your Generac generator, learn how to use and maintain it and reduce the risk of issues. 

  • Compliance: Experienced local generator installation services understand the rules and regulations related to fitting residential units. They will ensure your installation is fully compliant. 

How Can I Get a Quote for a Generac Generator Installation?

If you’re looking to install a Generac generator in your home, it’s beneficial to get quotes and compare prices and offers. Top tips to find the best offers include:

  1. Research local companies: Visit websites, read reviews and testimonials, check insurance, warranties and permits, and schedule calls or consultations to get more information.
  2. Ask people you trust for recommendations: If you’re new to an area, online reviews and local social media groups can be a valuable resource.
  3. Ask for full, written quotes
  4. Prioritize value for money over low prices
  5. Always choose reputable providers with a proven track record

To get a quote for your home from a trustworthy, experienced provider, contact Wells Electric Service today.

Summary

The average cost of buying and installing a Generac generator for your home is around $13,000, but the price can vary hugely. Factors that affect costs include the size of the generator, your power requirements, the complexity of installation, the company you choose for generator installation, the fuel type, and the add-ons or features you select.

If you have any questions, or you’d like
a quote for your home, don’t hesitate to get in touch with the friendly, knowledgeable team at Wells Electric Service.