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Find Generator install pros in Frederick

Avatar for Trinity Generators & Electrical, Inc.
Trinity Generators & Electrical, Inc.
4.3(
28
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Last Monday, Nov. 3, I had some major surgery done on my GENERAC generator. It was time for "Super Maintenance" and your service man did a SUPER job! His name is Joe and he did a great job servicing my machine. He arrived on time and went right to work. He changed the oil and oil filter, put in a new battery, adjusted the valves, put in a new air filter, and even cleaned the top of the generator. All this while i looked over his shoulder and asked questions, lots of questions. I am impressed with Mr. Joe. He is very knowledgeable about your products, well spoken, and easy to talk to. It took him less than an hour to complete his work, despite my constant jabbering. He's a KEEPER! Thank You Trinity, And Thank You Joe! Paul O Weller Trinity Client"
Response time2 days
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Christopher J. Kollar Electrical Contractor
Christopher J. Kollar Electrical Contractor
4.8(
22
)

Serving Frederick, PA and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

Welcome to Christopher J. Kollar Electrical Contractor, LLC. We have been proudly serving the local area since 1999. Call today to schedule an appointment for fast, quality, and reliable service! You will not regret your decision to work with our company!\n\nWe also provide same day or emergency services for residential and commercial clients.

200 Amp Panel Total Rewire
200 Amp Service Upgrade
Generator Installation
Underground Service
100 Amp Service

+16

Response time11 hrs
Recommended by100%of homeowners
Avatar for DM Electrical Services, LLC
DM Electrical Services, LLC
5.0(
36
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We are VERY pleased with DM Electrical. Dan was very professional, was prompt at appointed time, and performed the electrical the electrical service we requested, which was to install a new electrical box, in a diligent manner. We will definitely no only call them again if we need electric service, but will recommended them to others."
Response time3 hrs
Recommended by97%of homeowners
Avatar for Mister Sparky Electric
Mister Sparky Electric
4.4(
321
)

Serving Frederick, PA and surrounding areas

Approved

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
393 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Malachowski Construction & Excavation LLC
Malachowski Construction & Excavation LLC
5.0(
7
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

We are a small company that can tackle any task. The owner is on every jobsite to make sure that the work is getting completed to his high standards. We like to be a one stop shop for our customers and help them with whatever their dream is.

Response time3 days
6 neighbors recently requested a quote
Recommended by85%of homeowners
Independent Power and Solar LLC
5.0(
2
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

#1 Customer satisfaction is what determines our success, which is why we take a hands-on approach. You'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.\n

Recommended by100%of homeowners
Avatar for AMF Electric, LLC
AMF Electric, LLC
5.0(
3
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"AMF Electric LLC installed a service cable, panel and ground rod. The service techs were knowledgeable and respectful. I had no problems with their service."
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+7

12 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

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.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.