Top-rated generator install pros.

Get matched with top generator install pros in Vienna, VA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY VIENNA, VA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon65
    Verified generator installs reviews

Find Generator install pros in Vienna

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

Serving Vienna, 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
Additional Photos
Additional Photos
Additional Photos
Response time4 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Vienna, 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 time9 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Atlas Electrical Solutions LLC
Atlas Electrical Solutions LLC
5.0(
77
)
Portable Generator - Install

Serving Vienna, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Atlas was the first electrician company to respond to my request for quotes. All they needed were pictures of my fixtures to be installed and my explanation of pre-installed switches and wiring, in order to give me a quote. Other companies that responded wanted to charge me $75-$100 just to come out and give me a quote. Atlas was able install my 3 fixtures very quickly and did an outstanding job. I will definitely use them again when I have the need."
My jobs
My jobs
My jobs
My jobs
My jobs

+3

Response time5 hrs
35 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
172
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Vienna, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate92%
8 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 Vienna, 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 Mister Sparky
Mister Sparky
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Vienna, VA and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

At Mister Sparky®, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come.\n\nOur highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

18 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 Vienna, 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

8 neighbors recently requested a quote
Recommended by60%of homeowners
...
Showing 1-10 of 115
Generator Install questions, answered by experts

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. 

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.

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.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The Vienna, VA homeowners’ guide to generator installs

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