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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

Avatar for Bailey & Shipp Electric
Bailey & Shipp Electric
4.1(
82
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Greenbelt, MD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Your technician that came out to do a yearly maintenance inspection on my generator was very nice and knowledgeable. He arrived actually earlier than expected and went right to work. I would recommend your company to anyone and it was so nice to deal with someone who acted like they enjoyed their work and wanted to please. Thank you!"
3 recessed lights
Single Recessed Light
Custom Bathroom Wiring
chandelier
Panel Replacement After

+8

Response time10 hrs
5 neighbors recently requested a quote
Recommended by91%of homeowners
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

"Truly appreciated working with Erin to set-up the project. As others have said, she is top notch. Thaddeus did an excellent job installed an Interlock system for our generator. He willingly worked with us to installed the outside plug where we needed it. Very happy with Artisan Electric."
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
Technician Engineers Group
3.7(
15
)
Generator - Install - For Business

Serving Greenbelt, MD and surrounding areas

Approved

In business since 1996

Offers commercial services

Customers say: Quick response

"Anthony and his team do expert electrical work of all kinds. We are a 145 year old non-profit organization with buildings and grounds, and have contracted with Technician Engineers Group (TEG) on two large projects (and several small ones) over the last 15 years. One project rewired a large 125 year old building listed on the National Register of Historic Places, and one installed an extensive outdoor lighting system. In these two unusual situations TEG worked closely with us to find innovative solutions to our unique needs. We are very pleased with the results, enjoyed their can-do approach, and highly recommend this company for any electrical challenge. We found TEG reliable, honest, on time, and all the work was completed ahead of schedule."
4 neighbors recently requested a quote
Recommended by53%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 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
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Generator Install FAQs, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

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.