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TRUSTED BY MARSHALL, VA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Find Generator install pros in Marshall

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

Serving Marshall, 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%
5 neighbors recently requested a quote
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Marshall, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"The guys arrived exactly at the prearranged time. They informed me that the work would take longer than the '2 man hours' that I bought through the Angie's List Deals before they began the job - which I appreciated.  They were on task and professional the whole time. They explained any problems they encountered while re-installing the old light fixture - need new bulbs.  They cleaned up any mess they made at the end of the job. Rates and cost of supplies were reasonable.  I WILL BE CALLING THEM BACK FOR ANY OTHER ELECTRICAL WORK IN THE FUTURE.
"
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time7 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Raufi Services LLC
Raufi Services LLC
5.0(
29
)
Fixed Generator - Install

Serving Marshall, 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%
6 neighbors recently requested a quote
Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
4.3(
59
)
Fixed Generator - Install

Serving Marshall, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The service that Zack Weaver and Justin Fox provided when they installed my new furnace was fantastic. The attitude and willingness to answer my questions are what you are looking for when such a major addition to your home is happening. I have been in the people business for over 30 years and these professional rank in the top 5% when it comes to service. Job well done."
Happy HVAC Technician
Electrician gathering parts
Checking in the equipment needed for the day
Happy Electricians
We make our own sheet metal!

+9

Response time9 hrs
Response rate94%
253 neighbors recently requested a quote
Avatar for Benfield Electric Co.
Benfield Electric Co.
4.9(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Marshall, 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

6 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Total Electric Solutions LLC
Total Electric Solutions LLC
5.0(
5
)
Fixed Generator - InstallPortable Generator - Install

Serving Marshall, VA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

Total Electric Solution is a licensed and insured electrical contractor serving Loudoun County and surrounding areas. We specialize in high-end residential and light commercial electrical work, including renovations, service upgrades, lighting solutions, generators, and custom electrical installations. Our team is committed to clean workmanship, clear communication, and code-compliant installations that are built to last.

Trencher
Vehicle Charger
3 neighbors recently requested a quote
Avatar for M.E. Flow
M.E. Flow
5.0(
5
)
Fixed Generator - InstallFixed Generator - Repair

Serving Marshall, VA and surrounding areas

Approved (Corporate)

In business since 1951

Free estimates

Emergency services offered

M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.

ME Flow HVAC Services
5 neighbors recently requested a quote
Stinnett Electrical Services
5.0(
3
)
Portable Generator - Repair

Serving Marshall, VA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

Stinnett Electrical Services, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of your interests and make your concerns the basis of our business.

Response time50 mins
Recommended by100%of homeowners
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Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

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.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

The Marshall, VA homeowners’ guide to generator installs

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