Generator

A generator is a backup power system that keeps your home running when the grid goes down, powering everything from refrigerators to sump pumps during outages. Whether you're considering a portable unit for occasional use or a whole-house standby system, proper sizing and installation matter. Angi helps you find the right pro for generator installation, maintenance, and repairs to keep your home prepared.

Related to Generator Service

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Choosing a Generator for Hurricane Season: A Complete Guide
Backup generators are a necessity to keep your home powered during a hurricane. Find out how to choose the best generator for hurricane season.
Scott Dylan Westerlund  •  May 2, 2026
Should I Buy a Generator for Emergencies?
Need to decide whether to install a generator at your home? Take a look at how to decide if a generator will benefit your home based on your household needs.
Tyler Lacoma  •  May 2, 2026
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8 Types of Generators for Homeowners
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
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Common Generator Service Questions

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

Common issues with portable generators include difficulty starting, inconsistent power output, fuel leaks, and overheating. Regular use and poor maintenance can lead to these problems.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.