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Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
370
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Manchester, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Can't say enough about how smooth a process this was, from permitting to planning, installation to startup. Ryan and his team were very professional, very clean and thoughtful throughout. Very responsive and friendly in their communications and the work is outstanding. Looking forward to their help for many years to come."
Additional Photos
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+17

Response time1 day
Response rate100%
27 neighbors recently requested a quote
Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
175
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Manchester, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"I had an excellent experience with Clinton Electric Co. overall and the electrician they sent, Eric Shipley. Communications before the visit were prompt, professional, and geared toward promoting confidence. Electrician was also courteous and professional throughout the visit, provided excellent communications as to expected costs and the diagnostic he was performing, and performed the work quickly and efficiently (tested the wiring, replaced electrical outlets, installed new circuit breaker, and tested to confirm all outlets and the dishwasher were working). Provided email with invoice before leaving the visit. Company communications practices geared toward safety and inspired confidence - dispatcher provided name of electrician before visit; company also texted and emailed photo of electrician prior to visit. Electrician wore mask and followed safe COVID-19 practices. I was very pleased and would use this company again, as well as highly recommend them."
Additional Photos
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Additional Photos

+2

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Robert Likens Electric
Robert Likens Electric
4.7(
619
)
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

"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
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

"They did a great job capping the live wires from a wall we tore down and got our recessed lighting in the basement working with the switches. Reasonable priced and professional. Very considerate of the space and timely in completion."
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 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%
2 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."
5 neighbors recently requested a quote
Recommended by53%of homeowners
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Showing 1-10 of 62
Generator Install questions, answered by experts

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. 

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.