Top-rated generator install pros.

Get matched with top generator install pros in Annandale, VA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY ANNANDALE, VA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon67
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Annandale, VA

*The Angi rating for Generator Install companies in Annandale, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Annandale, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on May 30, 2025

Find Generator install pros in Annandale

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

Serving Annandale, 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%
2 neighbors recently requested a quote
Request Quote
Green's Electric
5.0(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Annandale, VA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

Electrical Service & Repairs - We guarantee your satisfaction, and we won?t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

1 neighbors recently requested a quote
Recommended by63%of homeowners
Request Quote
Avatar for Atlas Electrical Solutions LLC
Atlas Electrical Solutions LLC
5.0(
78
)
Portable Generator - Install

Serving Annandale, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Very professional. Was quick to install my EV charger in my garage at a reasonable price"
My jobs
My jobs
My jobs
My jobs
My jobs

+3

Response time5 hrs
25 neighbors recently requested a quote
Recommended by56%of homeowners
Request Quote
Avatar for Elements Of Energy L.L.C.
Elements Of Energy L.L.C.
5.0(
23
)
Generator - Install - For Business

Serving Annandale, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"They installed a chandelier. Did a great job, no issues. Very responsive."
Kitchen and Bathroom
Fixtures & Ceiling Fans
LED Recessed lights
EV Charging Stations
Switches & Receptacles

+176

Response time1 day
Response rate93%
9 neighbors recently requested a quote
Request Quote
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
169
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Annandale, 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."
2 neighbors recently requested a quote
Recommended by87%of homeowners
Request Quote
Avatar for Willy Electrician
Willy Electrician
5.0(
6
)
Fixed Generator - Install

Serving Annandale, VA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"Installation of EV charger all materials were provided. Could not be happier with the suggested location. I greatly appreciate your diligent work and expert advise. Thank you!"
Recessed lighting
Recessed lighting
Recessed lighting
Furnace
2 neighbors recently requested a quote
Request Quote
Avatar for Benfield Electric Co.
Benfield Electric Co.
4.9(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Annandale, 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
Request Quote
Avatar for Parrish Services, Inc.
Parrish Services, Inc.
3.9(
52
)
Portable Generator - Repair

Serving Annandale, VA and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"Received a call from Parrish Services. We spoke for almost 30 minutes on the phone plus using a video app I was able to stream to him my home heating system. Based on my situation and the current installed oil heating system I would be wasting money trying to change to a new electric system. He indicated the system installed was a top of the line efficient system. After the conversation I let him know I appreciated his honesty and input. That input included having to upgrade electrical panel etc.. Bottom line.. Found Parrish to be honest, bottom line answers yet willing to work with you on what you want done. Thanks Parrish .Services..."
AC Replacement
AC Replacement
AC Replacement
Generator Installation
Generator Installation

+3

Recommended by89%of homeowners
Request Quote
...
Showing 1-10 of 108
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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

The Annandale, VA homeowners’ guide to generator installs

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

See all articles