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TRUSTED BY WARRENTON, VA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon20
    Verified generator installs reviews

Top-Rated Generator install pros in Warrenton - Updated Nov 2026

Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Warrenton, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"These guys did a fantastic job and were an absolute pleasure to work with. Small business, all primary work done by the three owners/operators of the group, who are are masters in their respective fields: "Tech Guy", Electrician, and Gas Fitter. (I genuinely hope to not cause offense by this broadly generalized description). I had a 20kW Cummins LP/NG-fired automatic backup generator installed and connected to a new automatic transfer switch, and (since we had no existing gas system) a new 500gallon LP propane tank installed and under-grounded to feed the generator. My main electrical panel was brought up to current code in the process. The excavation and burial work was subcontracted to a trusted local operator that did really nice work, and they worked with Southern States to provide a tank and first fill. They handled all the permits and coordinated the inspections. Waiting for the county inspector, and waiting for Southern States to fill the tank after the gas inspection, were the only observable delays in the process, and those were negligible/reasonable. The SciFiHomes people were quick, efficient, and obviously practiced with all of their pieces of the work. They will strongly prefer Cummins-brand generators over the competitors, and they are more a more expensive initial investment compared to them. After doing my own research after their sales pitch, it is a very worthwhile "upgrade". The difference between Cummins' generators and the competitors is fuel efficiency; according to the math, I'll get over 24 hours of additional runtime vs (as an example) Generac's 20kW generator at 40% average load on a full 420gallons of propane in the new 500gal tank. With an extended outage, or multiple long outages as with last winter in Frederick County, that's a very significant advantage. Sorry for the "sales pitch"; I only included this to prove that they're in my opinion very justified in pushing the "premium" brand. We purchased the extended warranty uplift as well as their extended service agreement. We can't recommend them enough; fantastic experience, and this generator has already flawlessly provided over 20 hours of outage coverage in the 5 months we've had it. Winter is coming, and we'll be ready this time. It just works... These guys and their total solution probably isn't the absolute cheapest in the area... but we absolutely got what we paid for. Thanks SFH!"
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time7 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Varco Electric
Varco Electric
5.0(
31
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Warrenton, VA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

We take great pleasure in the quality, customer service, experience, and knowledge we offer to satisfy the demands of the company. From the very beginning of a project to its successful conclusion, it is our goal to deliver top-notch craftsmanship and total customer satisfaction. We take great effort to work and communicate with every customer in a professional manner in order to understand their needs and expectations. Regardless of how big or little the task is, our reputation is built on service, safety, and quality. We offer a variety of services, such as installing ceiling fans and lights and wiring new homes. replacing outdated wiring, circuits, and panels putting in/replacing smoke/carbon monoxide detectors, remodeling, and updating the electrical system installation of transfer switches, post light replacement fixtures, and outdoor lighting installs of electric vehicle chargers.

Response time9 hrs
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Raufi Services LLC
Raufi Services LLC
5.0(
29
)
Fixed Generator - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Raufi services was efficient, highly skilled, and helpful. They helped to install a Co2 and Smoke alarm system that will help me sleep at night knowing my family is protected. Thank you so much!"
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
4.3(
61
)
Fixed Generator - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"I want to comment on excellent work by techs David MacClary, Preston Shaw, Brett Allard, Seth Andres, and Justin Fox. Outstanding team effort on my full HVAC replacement. Superb customer service and excellent technician install. Theses guys set the bar high. Thank you for 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%
194 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 Warrenton, 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

7 neighbors recently requested a quote
Recommended by60%of homeowners
Stinnett Electrical Services
5.0(
3
)
Portable Generator - Repair

Serving Warrenton, 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
Avatar for Michael & Son Services, Inc.
Michael & Son Services, Inc.
3.3(
235
)
Fixed Generator - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1976

Emergency services offered

Warranties offered

"The technicians were very polite and knowledgeable. We needed to replace some outdated light fixtures in our basement with brighter and more efficient lights, and they installed much better fixtures. They did great work!"
Electrical Services
Electrical Services
Present Information to Customers
Arriving at Home
Fully Stocked Trucks

+11

Response time2 hrs
Response rate97%
Recommended by76%of homeowners
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Showing 1-10 of 61
Generator Install FAQs, answered by experts

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

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.

The Warrenton, VA homeowners’ guide to generator installs

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