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Top-Rated Generator install pros in Gate City - Updated Nov 2026

Frank Blankenship Properties & Electrical, LLC
4.5(
28
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Gate City, VA and surrounding areas

Approved

In business since 2016

Credit card accepted

Offers commercial services

Frank Blankenship Properties & Electrical is just what you needed to light up you life, or main focus is Electrical Switches, Outlets & Fixtures, Electrical Wiring or Panel Upgrade, So don't sreach in the dark for a good electrican when you are ready to hire call us. \n

11 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)
Fixed Generator - Install

Serving Gate City, VA and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

Avatar for Precision Electrical Company -
Precision Electrical Company -
3.4(
15
)
Fixed Generator - InstallFixed Generator - Repair

Serving Gate City, VA and surrounding areas

In business since 2004

Emergency services offered

Warranties offered

"Steve answered all emails and questions promptly and gently. Jodie installed the panel and was satisfied ONLY when a full, complete check was done on the system. Josh was a tireless worker without complaining about the work and cleaned up even during the process. They were all OUTSTANDING and professional to the nth degree. Hire them for your next job."
Response time1 day
Recommended by92%of homeowners
Generator Install FAQs, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

The Gate City, VA homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.