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TRUSTED BY KEMP MILL, MD HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon24
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Kemp Mill, MD

*The Angi rating for Generator Install companies in Kemp Mill, MD 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 Kemp Mill, MD 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 18, 2026

Find Generator install pros in Kemp Mill

Long Electric, LLC
4.9(
168
)

Serving Kemp Mill, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Customers say: Quality work

"We hired Long Electric for the installation of a whole-house generator. I have nothing but good to say about the Long Electric team. Great customer service and very knowledgeable installation team. The installation went flawless and the team cleaned up after the work. I strongly recommend Long Electric!"
Response time2 days
6 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for OC1 Electric
OC1 Electric
4.6(
51
)

Serving Kemp Mill, MD and surrounding areas

Approved

In business since 2009

Customers say: Quick response

"Oupekkha showed up exactly on time, explained clearly what he was doing, what his annual service contract included and reassured me that our generator is good to go. He even topped off the oil for us. I signed up!"
Response time1 day
2 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Elements Of Energy L.L.C.
Elements Of Energy L.L.C.
5.0(
23
)

Serving Kemp Mill, MD 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%
10 neighbors recently requested a quote
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Avatar for Bailey & Shipp Electric
Bailey & Shipp Electric
4.1(
82
)

Serving Kemp Mill, 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
2 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for One Source, LLC
One Source, LLC
4.8(
6
)

Serving Kemp Mill, MD and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

One Source Systems is one of the premier custom integrators in the greater Washington D.C. area. We are focused on an elevated client experience and meeting your needs for Smart Home design, including experiential elements such as lighting, shades and incredible dedicated theater and Audio/Video solutions. With over 10 years of experience in the audio industry, we are the experts you need to take care of your home or business. We will treat your home as we would treat our own. Give One Source a call today - we look forward to working with you!

After!
Proper Grounding Showcase
Theater Screen with Starry Night Ceiling
Before!
Lighting Fixtures in a restaurant

+26

Response time2 days
Recommended by80%of homeowners
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Calvert Generator
New to Angi

Serving Kemp Mill, 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
1 neighbors recently requested a quote
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Avatar for Ethridge Electric & Generator Services
Ethridge Electric & Generator Services
4.8(
33
)

Serving Kemp Mill, 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
Request Quote
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Generator Install questions, answered by experts

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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. 

The Kemp Mill, MD homeowners’ guide to generator installs

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

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