Top-rated generator install pros.

Get matched with top generator install pros in Manchester, MD

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Manchester, MD?

Select your specific project to find the pro for you.

Find Generator install pros in Manchester

Avatar for Robert Likens Electric
Robert Likens Electric
4.7(
620
)
Portable Generator - Install

Serving Manchester, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Emergency services offered

Warranties offered

"Hired Robert for installation the transfer switch. Installation was successful. Robert is a professional highly qualified electrician. explained exactly how it works. The whole process from proposal to installation took less than a week. Now, if any electrical work is needed, I will always call him because for the quality. I will also recommend it to my friends. Thank you very much for your work!"
 Ceiling Fans
 200 Amp Panel Install
 Ceiling fans
 Townhouse Rehab
 Rough IN

+8

Response time6 hrs
Response rate88%
1 neighbors recently requested a quote
Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Manchester, 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
Avatar for Calvary Electric LLC
Calvary Electric LLC
5.0(
13
)
Fixed Generator - Install

Serving Manchester, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

Calvary Electric LLC is a family owned, locally operated business specializing in commercial and residential electrical service and new construction. We serve our clients well with strong values in integrity, good character and hard work. If you desire quality workmanship and a job done right the first time, then Calvary is the contractor for you.

Whole House Generator
Kitchen Remodel
Kitchen Remodel
Additional Photos
Additional Photos

+13

Response time4 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Clinton Electric Company, Inc.
Clinton Electric Company, Inc.
3.9(
176
)
Fixed Generator - InstallFixed Generator - Repair

Serving Manchester, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Credit card accepted

"They checked my generator and said nothing was wrong, that the problem was probably with the electric companies transformer. My problem still exist. The electric company sent people out to check the current coming to my house and said everything is okay. They are going to install a monitor to check what is going on when there is an outage. So as of now my generator does not come on."
The Team
 Generac Automatic Standby Generator
Dusk to Dawn Spotlights
 Electrical Panel
Trucks

+7

Response time2 hrs
72 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,464
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Manchester, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Horizon Services (MD), LLC, is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizon Services (MD), LLC, remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners.

Recommended by89%of homeowners
Avatar for R&D Home Maintenace and Electrical Services
R&D Home Maintenace and Electrical Services
5.0(
2
)
Fixed Generator - InstallPortable Generator - Install

Serving Manchester, MD and surrounding areas

Approved

In business since 2018

Credit card accepted

Customers say: Quick response

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Living room
Interior design
floor job
Bathroom flooring job
Exterior repairs

+127

Response time7 hrs
Response rate86%
3 neighbors recently requested a quote
Technician Engineers Group
3.7(
15
)
Generator - Install - For Business

Serving Manchester, 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."
3 neighbors recently requested a quote
Recommended by53%of homeowners
...
Showing 1-10 of 62
Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

The Manchester, MD homeowners’ guide to generator installs

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