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TRUSTED BY CALVERTON, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon18
    Verified generator installs reviews

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

Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Calverton, 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
Calvert Generator
New to Angi
Generator - Install - For Business

Serving Calverton, 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 Calverton, 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 Calverton, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Ron Ethridge (owner) did the work. He was friendly, helpful, knowledgeable, and experienced. He was available on the phone during the project - after hours and weekends. He is very familiar with permitting and licensing and working with Pepco and the inspectors."
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 Calverton, 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
Nothing But Panels, LLC
4.8(
246
)
Portable Generator - Install

Serving Calverton, MD and surrounding areas

In business since 2016

Warranties offered

Credit card accepted

"Anthony is a true professional. He is very personable which made him easy to talk to. The young men working for him were courteous and about their business. Thought the prices were reasonable. Excellent service. If you are thinking about upgrading, installing outlets or any of your electrical needs, I highly recommend calling this company first."
200A amp upgrade
200A upgrade
Meter can relocation
Federal pacific panel
Whole house surge protector

+41

Response time6 hrs
Response rate92%
Recommended by99%of homeowners
NjT Electrical
4.9(
56
)
Generator - Install - For Business

Serving Calverton, MD and surrounding areas

In business since 2018

Free estimates

Offers commercial services

"We would definitely contact Mr. Williams for more household projects. He installed a gas cooktop with a downdraft for us. During the install, he discovered that the vent pipe being used by the old downdraft fan was too small. To ensure that we would have a working cooktop that evening, Mr. Williams went to the hardware store for new parts. The price of the project was very reasonable. He also followed COVID-19 safety protocols (mask, gloves, social distancing, staying within the worksite) for the entire project."
Response time1 day
Recommended by100%of homeowners
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Generator Install FAQs, answered by experts

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

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 your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

The Calverton, MD homeowners’ guide to generator installs

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