Power outages can interrupt your routine, impact your comfort, and even create safety risks. A house backup generator keeps essentials running, like your lights, fridge, and heat, so you’re not left scrambling when the grid goes down.
Some generators only power a few things. Others can keep your entire home up and running without you needing to flip a switch. If you want something reliable that takes over automatically, a whole home generator is worth considering.
In this guide, you’ll learn how house backup generators work, how to choose the right one, and what you can expect in terms of cost and upkeep.
How Do Backup Generators Help During Power Outages?
Power outages never happen when it’s convenient. One minute you’re making dinner or helping the kids with homework, and the next, everything shuts off. The lights go out, the fridge stops humming, and your home suddenly feels a lot less comfortable.
A house backup generator steps in when the electricity cuts out. It starts on its own, so you’re not digging for flashlights or hoping the heat comes back soon. It keeps your refrigerator running, lights on, and home steady during uncertain situations.
Generators also help you avoid bigger problems. When the power stays off for hours or even days, frozen pipes, spoiled food, or unsafe temperatures can become real concerns. A generator keeps things stable and safe while you wait for the grid to come back.
Whole Home Generators vs. Portable Models
When you’re thinking about getting a backup generator, you have two main options: a portable unit or a whole-home generator.
Portable Generators
- You roll them out when the power goes out
- You have to start them manually and plug things in directly
- Good for running just a few things, like your fridge or some lights
- Less expensive up front, but they take more effort when it counts
- Not ideal if you want long-term convenience
Whole Home Generators
- These stay in place outside your home, kind of like a central AC unit
- They turn on by themselves during an outage
- Depending on the model, they can power your entire home or just key areas
- You get useful features like weather protection, quieter operation, and even app-based monitoring
If your goal is to keep things running smoothly without having to carry cords across the house, a whole-home generator might be a better fit.
How to Choose the Right Generator for Your Home
Look at your family’s daily needs. Do you use electric heat? Does anyone rely on medical devices? Do you need well water or a sump pump? These are all important when deciding how much wattage your generator should handle.
Fuel type is another piece to think about. Natural gas and propane are common for whole-home generators, while portable units often use gasoline. Each has trade-offs in cost, availability, and how long they run before refueling.
Also, look at the features that make life easier. Automatic transfer switches, remote monitoring, and quiet operation are all helpful, especially if you’re away from home often.
How Much Does a Whole Home Generator Cost?
On average, expect to pay between $1,500 and $9,000 for the unit. That includes the generator, an automatic transfer switch, and professional installation. Larger homes or higher-capacity units may cost more.
Permits, wiring upgrades, and fuel connections can raise the total. Still, the result is a system that takes over automatically and keeps your home running without interruptions.
Some utility companies offer rebates. Financing options are also available, depending on the dealer. These can make it easier to spread out the cost over time.
How to Maintain a Whole Home Generator
Your generator only works when it’s in good shape. Without regular maintenance, even a high-end system can fail when a storm knocks out the grid.
Check the generator at least once a year. Change the oil, inspect the battery, and make sure the startup function still works. Clear any debris or brush that could block airflow. If the generator sits too close to overgrown shrubs, you risk poor performance or unexpected shutdowns.
Keep access clear around the unit. Technicians need space to inspect the system quickly during a service call. That also helps if you need fast support during an emergency.
Many systems include remote monitoring tools. These features alert you to potential issues, which adds a layer of security and gives you a clearer view of how your generator performs.
W. Danley Electrical Keeps Your Backup Power Reliable
If you live in New Jersey and want dependable service for your backup generator, W. Danley Electrical is a strong choice. They rank in the top 5% of Generac-certified dealers nationwide and have a long track record of helping homeowners keep their systems ready.
W. Danley handles residential and commercial units, including the Guardian and Protector Series. Whether you rely on a 10kW unit or a large 350kW system, their technicians know how to get it running again.
Here’s what they offer:
- Certified repairs: Quick diagnostics and part replacement for any Generac model
- Preventative maintenance: Oil changes, battery checks, load testing, and full inspections
- Remote monitoring support: MobileLink™ alerts and early warning tools
When a storm hits or the grid fails, you want to feel confident that your generator will work. W. Danley helps you hold onto that peace of mind with expert care and fast, reliable support.
Ready to schedule service or explore your options? Fill out a contact form or request a free quote from W. Danley Electrical today.
FAQs About House Backup Generator
What size generator do I need to backup my house?
Most homes need a generator in the 17–20 kW range to power essential systems and appliances. Larger homes or those needing full coverage may require 20–24 kW.
Is a whole-house backup generator worth it?
Yes, if you want automatic coverage without setup during an outage. Whole house generators start on their own and keep your entire home powered. They’re valuable in areas with frequent storms or unreliable grid service.
How much is a generator for a 2000 sq ft house?
A 17–20 kW unit typically costs between $4,250 and $6,600. For full coverage, a 20–24 kW model can range from $3,000 to $6,000, depending on brand and features.
How much does it cost to install a whole-house backup generator?
Labor and installation usually range from $1,500 to $5,000. When combined with the generator cost, total installed prices for most 2,000 sq ft homes fall between $6,000 and $11,000.
