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TRUSTED BY NEW WINDSOR, MD HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon13
    Verified generator installs reviews

Top-Rated Generator install pros in New Windsor - Updated Nov 2026

Avatar for Rollins Repair
Rollins Repair
4.7(
56
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving New Windsor, MD and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Our existing generator died. James diagnosed the problem and gave us a few options to repair or replace it. We chose to replace it. James handled everything, from getting and installing the new generator to electrical and fuel (propane) connections. We have asked him to schedule us for the annual maintenance on the machine. We are pleased, though we haven't lost power since it was installed, LOL."
 Air Cooled Generator
 30KW Quitesoure
 Residential Installation
 20KW Air Cooled
 Another Residential Installation

+6

Response time9 hrs
3 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving New Windsor, 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 New Windsor, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Great crew. Responded quickly and professionally. Was able to circumvent some issues with my initial wants and come up with a better layout for the project. Just what was needed and complete in record time. Great pricing as well for the detailed work performed."
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 New Windsor, 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 New Windsor, 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 New Windsor, 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
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Generator Install FAQs, answered by experts

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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.

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. 

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The New Windsor, MD homeowners’ guide to generator installs

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