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TRUSTED BY GREAT FALLS, VA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon78
    Verified generator installs reviews

Find Generator install pros in Great Falls

Green's Electric
5.0(
21
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

Electrical Service & Repairs - We guarantee your satisfaction, and we won?t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

1 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Raufi Services LLC
Raufi Services LLC
5.0(
29
)
Fixed Generator - Install

Serving Great Falls, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"You cannot find a better contractor than Raufi Services. We hired Raufi Services to install 240V/50A wiring for a hot tub. They were extremely efficient, polite, and timely. The quality of their work was outstanding--I couldn't even tell they ran the wiring in the house after they were done. They were also very competitive in their cost estimate."
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
169
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Had a surprise when workmen showed up unannounced the day after I signed the contract. Once we rescheduled the installation date and time, things went very smoothly. The installation of the furnace, AC, and hot water heater took less than a day. I'm very happy with the results."
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Home Service Pros
Home Service Pros
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving Great Falls, VA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"They are sewer and drain specialists and they do it really well. Reasonable prices, responsive service. We had family visiting and they moved schedules to and to us. We're grateful that they did so."
Bad Cast Iron Line
trench
after photo
waterproofing of penetration into home
Before and after

+7

Response time10 hrs
Response rate89%
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The Great Falls, VA homeowners’ guide to generator installs

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