Top-rated generator install pros.

Get matched with top generator install pros in Toms Brook, VA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Toms Brook, VA?

Select your specific project to find the pro for you.

Find Generator install pros in Toms Brook

Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Toms Brook, 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 Toms Brook, 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
5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for SciFiHomes, Inc.
SciFiHomes, Inc.
4.8(
51
)
Fixed Generator - Install

Serving Toms Brook, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Working with SciFi could not have been better. It was the only contractor in the area willing to take on the entire project of installing propane tank, running a gas line and connecting a new range, and installing a generator for my home. Marshall, Steve, and the crew did an excellent job, What made working with them such a positive experience was the timely communications about every aspect of the project. Due to the pandemic, the generator was backordered; but, because they kept me up to date, there were no surprises. SciFi shows a clear commitment to doing quality work and customer service. I highly recommend SciFi, and will gladly call on them again."
JK Cummins 20kW Standby Generator Install
Briggs & Stratton 20kW #1
RH Cummins 20kW Standby Generator, Roundhill, VA
 Generac 20kW Standby Generator
RF 20kW Standby Generator

+11

Response time5 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Total Electric Solutions LLC
Total Electric Solutions LLC
5.0(
5
)
Fixed Generator - InstallPortable Generator - Install

Serving Toms Brook, 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
2 neighbors recently requested a quote
Stinnett Electrical Services
5.0(
3
)
Portable Generator - Repair

Serving Toms Brook, 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 Versatile Electrical Services LLC
Versatile Electrical Services LLC
4.8(
25
)
Portable Generator - Install

Serving Toms Brook, VA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"We found Versatile Electric through our general contractor who was building our screened-in porch. Carlos and his brothers came on the job to do the lights, outlets, fan, and three 1800W infrared heaters -- a complex and multi-faceted job requiring close coordination with the other trades involved in the project. We also asked them to replace our house's main power panel to allow room for additional circuits (including a dedicated 240V circuit for our electric car charge point in the garage) *and* add an auxiliary panel with an external connection point so we could plug our 7KW generator into the house to power six circuits during major grid failures. Carlos did all this work flawlessly and trained me how to operate the generator in microgrid mode safely and effectively. Two thumbs up for Versatile Electric! We love our porch and also can rest a bit easier knowing we'll be safer and more comfortable during any prolonged power outage."
kitchen
kitchen /open concept
kitchen
basment
fan

+5

Response time2 hrs
Recommended by85%of homeowners
Oaken Electrical Services
4.9(
9
)
Portable Generator - Repair

Serving Toms Brook, VA and surrounding areas

In business since 2024

Credit card accepted

"This electrician is an amazing hard worker! He installed a motion sensor light in my laundry room with excellently! He has also done other work around my house like fixing my generator, figuring out why my outlet doesnâ t work ectâ ¦ He is really fun to talk to and his overall customer service is a 10/10! Would recommend"
Response time10 mins
Response rate91%
Recommended by75%of homeowners
R C Electrical
4.4(
9
)
Fixed Generator - Install

Serving Toms Brook, VA and surrounding areas

In business since 2008

Free estimates

Warranties offered

"The men showed up on time and performed the task in a timely fashion. They were very professional and I will certainly use them in the future. They installed a 220 line for my dryer and corrected some work previously done before we moved here. Overall, I was very pleased with their work and friendliness while completing the work."
Response time2 days
Recommended by100%of homeowners
KDE Electric, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - Repair

Serving Toms Brook, VA and surrounding areas

In business since 2003

Free estimates

"Quality is top notch.Emil is a true craftsman,taking pride in his work.We had 2 other companies in to discuss generators. Emil took the time to walk us thru all we needed to know about making a knowledgeable decision. Work was completed in good order through some cold bitter weather.Perfect Job, I would highly recommend KDE."
Away from the house, it has a good ventilation
Neglected generator
Another high platform for flood areas
Guaranteed professional!
Underground propane tank & generator

+16

Response time11 hrs
Recommended by100%of homeowners
Showing 1-10 of 31
Generator Install questions, 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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

The Toms Brook, VA homeowners’ guide to generator installs

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