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TRUSTED BY ASHBURN, VA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon20
    Verified generator installs reviews

Find Generator install pros in Ashburn

Avatar for Cody Malone Services LLC
Cody Malone Services LLC
5.0(
358
)
Fixed Generator - RepairFixed Generator - InstallPortable Generator - Install+1 more

Serving Ashburn, VA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I have been hiring Cody Malone since we purchased our house in July 2012. They have switched out outlets, installed indoor ceiling fans, installed outdoor ceiling fans, ran electrical to my outdoor water feature and switched out my light fixtures. I plan to hire them again when I add electric to my detached garage. They always do a great job and arrive when they say they will. I have never had a single issue and they have been to my house for no less than six different projects!"
Additional Photos
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Response time4 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Ashburn, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"SciFiHomes, Inc. did a great job installing our whole-house generator. They are friendly, efficient, reliable. They take the time to do things right and make sure the homeowner understands the equipment."
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Fox Trail Electric LLC
Fox Trail Electric LLC
5.0(
17
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Ashburn, VA and surrounding areas

Approved

Free estimates

Credit card accepted

Customers say: True professional

"If you're looking for an honest reliable electrician look no further. After dealing with another less than honest contractor constantly giving excuses Fox Trail was a breath of fresh air. They handled our install on time and on budget, with no nonsense or excuses."
Miscellaneous
Miscellaneous
Miscellaneous
Miscellaneous
Miscellaneous

+27

Response time12 hrs
7 neighbors recently requested a quote
Recommended by43%of homeowners
Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
173
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Ashburn, VA and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"Clinton Electric is a very professional organization: responsive, efficient, quality materials, excellent workmanship and a reasonable price. Jordan Mayer, the electrician, who performed the installation was outstanding. I highly recommend this company."
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+2

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
168
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Ashburn, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"I was very impressed with this company from beginning to end. When they gave me an estimate, they spent 90 minutes with me to make sure I selected the right furnace and AC. The crew came two days later and installed the furnace and AC in one day. Great job! Very happy with the whole experience. I highly recommend this company to others."
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Benfield Electric Co.
Benfield Electric Co.
4.9(
5
)
Fixed Generator - RepairFixed Generator - InstallGenerator - Install - For Business+1 more

Serving Ashburn, VA and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

Benfield Electric Company is an area leader in the Electrical Service field, serving customers throughout Northern Virginia, Maryland, and D.C. We work with residential and commercial clients and pride ourselves on our capability to meet all types of electrical wiring demands and deadlines. Established in 1968, we are a licensed, bonded and insured class “A” Electrical contractor. We are focused on providing a wide array of services to meet all our customer's needs

Air Cooled Backup Generator Install
Air Cooled Backup Generator Install
Air Cooled Backup Generator Install
Liquid Cooled Backup Generator
Transfer Switch

+9

9 neighbors recently requested a quote
Recommended by60%of homeowners
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Showing 1-10 of 86
Generator Install questions, answered by experts

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. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

The Ashburn, VA homeowners’ guide to generator installs

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