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Best generator install pros near Greenbelt, MD

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

Green's Electric
5.0(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Greenbelt, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"It went very well. They were very courteous and cleaned up after themselves. They were respectful of my space and of me while working in my home. They did a walk-through before hand to make sure we were on the same page with everything and then did another walk-through at the end to make sure everything was done and correct. This is the first time I've dealt with an electrician and I was very impressed, I will use him again in future if we have any electrical problems."
Response time1 day
Response rate100%
23 neighbors recently requested a quote
Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Greenbelt, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Very friendly from the technician to the secretary. They got me in fast worked with my schedule and got out fast. They also mounted my ring doorbell.. Excellent service and the price was awesome"
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install

+2

Response time1 day
9 neighbors recently requested a quote
Recommended by68%of homeowners
Calvert Generator
New to Angi
Generator - Install - For Business

Serving Greenbelt, MD and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Calvert Generator 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 our customers' interests, and make their concerns the basis of our business. \n

Response time10 hrs
Green's Electric
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Greenbelt, MD and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"They were prompt, courteous, and informative. During the estimation process Darnell was very good and provided a very competitive price. I am pleased with the work done to install a new EV charger on the outside of our house"
1 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Provident Electric
Provident Electric
4.9(
79
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Greenbelt, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Larry and his crew upgraded our under cabinet lighting with new LED lighting, and specialized outlet. Not only was our home and its contents treated as if they lived here, the job was done professionally. So much so, that the only issue we had was when the switch/outlet face plate screws came loose. I didn’t even bother calling Larry, I tightened them myself. The lighting is on, literally 24 hours per day since the install, with zero issues. Love these guys."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+28

Recommended by97%of homeowners
Avatar for Ethridge Electric & Generator Services
Ethridge Electric & Generator Services
4.8(
33
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving Greenbelt, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Ron Ethridge has been our Electrician of chose for the past three years. I started out using Ron to service my generator after the warranty lapsed. Heâ  s provided that big company expertise with that small organization connection. Since that time Ron and his team have provided electrical services for our entire home. I feel comfortable leaving Ron in our home while weâ  re away which is a huge feat for me particularly. Iâ  m grateful for the service that Ron and his team continues to provide to our family."
Panel Change/Heavy Up
Panel Change/Heavy Up
Panel Change/Heavy Up
Recessed Lighting
Recessed Lighting

+1

Response time2 hrs
Recommended by100%of homeowners
Ritzau, LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Greenbelt, MD and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"We had been considering a home generator for a few years as the power grid we are on has periodic problems, with no solution in sight from Dominion Power.  We did our due diligance on interviewing a number of providers found on Angies List.  In the end, we had a couple of good offers, but none we are responsive as Patrick Collins of Ritzau. LLC.  Patricks team we very responsive and professional.  From the time I asked to schedule for an estimate until the deal was complete...he was always matter of fact and to the point, timely with responses to my questions, and was always open and honest.  His company is smaller than some I interviewed, and he actaully is the installer and has hands on the entire project.  Others companies while competitive, had sales reps visit and do the estimates, and were not part of the install team.  It has been my experience that you want to deal directly with the team lead for these types of projects, and Patrick was the best.  The package deal included the lastest Generac 22KW generator, vice the 20KW that others offered.  The long pole in the tent was getting Washington Gas to install upgraded gas meter that would accomodate the generator, and the Fairfax Country inspections.  
Overall this was an excellent experience.  I would highly recommend Ritzau, LLC and Patrick Collins to anyone who is serious about getting a home generator.  They are the pros and get down to business.  Quick, professional and timely.

"
Recommended by100%of homeowners
Avatar for K&C Electric, LLC
K&C Electric, LLC
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Greenbelt, MD and surrounding areas

Free estimates

"Chris was prompt and professional. He was the first to respond and I simply got lucky! The project was more complicated than first imagine since I had some dead wires but he was able to Pivot and fix everything. He even picked up equipment on his personal time that I needed for proper installation. Cannot recommend highly enough. 5 stars."
New meter base and service entrance cable
Replace main panel for a new one where leave customer extra spaces for future additions
New main panel ready for county inspection
Service upgrade after county inspection approved.
Additional Photos

+42

Recommended by100%of homeowners
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Generator Install FAQs, answered by experts

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.

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. 

Costs range from $500 to $2,500, depending on generator type and installation complexity.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Greenbelt, MD homeowners’ guide to generator installs

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