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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon32
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Millersville, MD

*The Angi rating for Generator Install companies in Millersville, 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 Millersville, 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 June 12, 2026

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

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

Serving Millersville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"It went great! Professional, quick to call and discuss the request. What I like the most was their genuine interest in helping me fast. They gave me an estimate the same day and the job was performed in less than 48 hours. I would definitely hire Green Electric for my future requirements. Thanks Mr. Darnell!"
Response time1 day
Response rate100%
25 neighbors recently requested a quote
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Avatar for Wireworx Electric Inc
Wireworx Electric Inc
4.9(
147
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Millersville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"They very quick and neatly installed an EV charger at our home. Very knowledgeable about chargers."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
Response rate89%
2 neighbors recently requested a quote
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Avatar for All In Electric
All In Electric
4.9(
36
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Millersville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"I have used All in Electric for several jobs and their work is above the status quo. They are always on time, and they care about not only their customers, but the quality of their work. I most recently used them to install a level 2 EV home charging station which was complicated due to the amount of work that was required for the wire installation, and they knocked it out of the park!"
(2) Automatic Transfer Switches next to the (2) main electrical panels.
Here is a 22kw Generac Standby Generator.
A 24kw Guardian Series Generac generator sitting on top of a 3" concrete pad.
The RED light will turn GREEN after AIE activates in through Generac.
Whole House Standby Generator System

+51

Response time1 day
Response rate99%
15 neighbors recently requested a quote
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Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
177
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Millersville, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"Installed generator and provide maintenance agreement."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
7 neighbors recently requested a quote
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Avatar for Duke's Electrical Services, Inc.
Duke's Electrical Services, Inc.
4.9(
310
)
Portable Generator - Install

Serving Millersville, MD and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Mark was able to provide a quote and the service in the same week. He was extremely professional and efficient. He completed two ceiling fan installs."
Recess light install
Recess and fan install
Recommended by90%of homeowners
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Avatar for Bailey & Shipp Electric
Bailey & Shipp Electric
4.1(
82
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Millersville, MD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"On both appointments, the technicians (David the first time, Matt & Evan the second time) were respectful and honest, very well organized. And they arrived right on time. We had ceiling fans and recessed lighting installed. They kept the work areas clean. -Frank K., City of Gambrills. My wife and I are very happy with their work, and the jobs were completed in the quoted time, even early! Everything was well explained and questions were answered with the feeling that they weren't in a rush to leave until I was satisfied. We will call again for future jobs."
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
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Avatar for Mr. Electric of Baltimore
Mr. Electric of Baltimore
5.0(
11
)
Fixed Generator - InstallPortable Generator - Install

Serving Millersville, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I used Mr. Electric of Baltimore to install new ceiling fans and rewire the electrical switches throughout my home. The technician was punctual, very knowledgeable and the quality of work was amazing."
Gallery
Gallery
Gallery
Gallery
Gallery

+3

16 neighbors recently requested a quote
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Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Millersville, 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
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Generator Install FAQs, answered by experts

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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. 

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.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

The Millersville, MD 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