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

Avatar for Trinity Generators & Electrical, Inc.
Trinity Generators & Electrical, Inc.
4.3(
28
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Frederick, PA and surrounding areas

Approved

In business since 2009

Emergency services offered

Customers say: True professional

"I had initially gotten a quote for the purchase and installation of my 22KW Generac generator from an electrician. He suggested contacting a Generac dealer to purchase and install my generator. Since I would have to contact a dealer if I had a problem with my generator after installation anyway, it seemed like a good idea. I got a quote from Trinity Generators which was substantially less than my previous quote. Getting the generator from Trinity was an easy choice. They did an outstanding job of installing the generator. Trinity handled all the paperwork and permits all the way to the final inspection of the installation. Trinity sent 4 technicians to install the generator. They started at 9am and finished right after lunch. The installation was fast and neat. They treated the installation as if my home was theirs. They removed all packing material and trash and left my home just as it was before they were there. I couldnâ t be more satisfied and happy with my decision to have them add a generator to my home. 5 Stars!!!!"
Response time2 days
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Synergy Power Systems, Inc.
Synergy Power Systems, Inc.
5.0(
10
)
Generator - Install - For Business

Serving Frederick, PA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"My mother used this company for her generator installation and recommended them to me because she loved them so much. I also ended up hiring them. All went well as expected, start to finish the crew as awesome. No regrets."
Reading Area
Chester County
Denver Pa
Generator Installed
Generac Generator Installed

+10

Response time1 day
Recommended by100%of homeowners
Avatar for DM Electrical Services, LLC
DM Electrical Services, LLC
5.0(
36
)
Generator - Install - For Business

Serving Frederick, PA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very professional and friendly, did installation of a ceiling fan and outlets in the basement. Definitely recommend. Will be using him again if we need any electrical work done."
Response time3 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Pro Electrician S Corp
Pro Electrician S Corp
4.3(
225
)
Fixed Generator - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"We had some outlets installed recently by the technician Carlos. Everything has been working great! Carlos is very personable. He took the time to explain the process and answered all of our questions. We will definitely be using the company again for future work!"
320A Electrical Service
320A Electrical Service
320A Electrical Service
320A Electrical Service
320A Electrical Service

+107

5 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Mister Sparky Electric
Mister Sparky Electric
4.4(
325
)
Fixed Generator - InstallPortable Generator - Install

Serving Frederick, PA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"Jason installed doorbells at 2 doors. There were no functioning doorbells when I purchased this house 5 years ago. Various contractors warned me of the difficulty and expense of hardwired installations, making me put off the project. Wireless doorbells were unreliable. I was encouraged by James, who did my annual electrical maintenance, and scheduled the work for me. Jason did a fantastic job by creative thinking to avoid the difficulties I'd previously been warned about. He did the job quickly, neatly, and very successfully. I am thrilled to have working doorbells for the first time in 5 years!"
 Office
  Office
  Office
69 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Revival Electric
Revival Electric
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

Revival Electric is a locally owned and operated electrical company providing reliable, high-quality residential and light commercial electrical services. We specialize in electrical repairs, panel upgrades, lighting installations, generators, EV chargers, and whole-home electrical safety solutions. Our focus is simple: safe work, clear communication, and dependable service. We take pride in doing the job right the first time, educating homeowners along the way, and offering long-term solutionsnot quick fixes. Whether you need a small repair or a full electrical upgrade, our licensed electricians deliver professional results you can trust. We also offer preventative electrical safety inspections and service plans to protect your home

 Revival Electric
17 neighbors recently requested a quote
Avatar for Mr. Electric of Reading
Mr. Electric of Reading
5.0(
22
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Frederick, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

"Troy did an amazing job on several projects for us. He installed a 220 sub panel box and wired in a new hot tub. Additionally, he wired up our basement during a remodel, same as a new construction build. We hired him back on for the project due to the professionalism and fairness he brought with him on his first job with us. I’m a meticulous guy and picky about how my electrical work looks. Troy came in above and beyond of what I was expecting with his order of neatness and cleanliness when laying his lines. Everything had to be perfect for him and I feel he exceeded what my high expectations were already. I would certainly only consider him for whatever our next electrical project is."
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade

+16

86 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

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

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The Frederick, PA homeowners’ guide to generator installs

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