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Find Generator install pros in Frederick

Avatar for Brandon Electric Inc
Brandon Electric Inc
4.9(
1,504
)

Serving Frederick, PA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Rob did an awesome job getting our generator hooked up. Brandon electric is our go to electrician. Jeff and his team are very responsive and professional. I Highly recommend their services"
D-1 Baseball Academy LED Lights
D-1 Baseball Academy LED Lights
4" LED Recessed Lights
Under Cabinet Lighting
Commercial Fan

+61

Response time1 day
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Hughes Electrical Innovative Current Specialists
Hughes Electrical Innovative Current Specialists
5.0(
973
)

Serving Frederick, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"This is a five star electric company with amazing technicians and affordable costs! Their work is done up to code and the work is warranted. They helped me with the purchase and installation of a 20kw Generac generator installed at my home. I am very happy I have these electricians when I need them!"
LED Low-Voltage Deck Lighting with (2) pillar Light fixtures
Pool Table Lighting Fixture and T.V. Mounting Bracket
LED Low-Voltage Deck Lighting with (2) pillar Light fixtures
Pool Table Lighting Fixture and T.V. Mounting Bracket
LED Low-Voltage Deck Lighting with (2) pillar Light fixtures

+26

3 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Trinity Generators & Electrical, Inc.
Trinity Generators & Electrical, Inc.
4.2(
27
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"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
Recommended by70%of homeowners
Avatar for G.A. Electric
G.A. Electric
4.9(
63
)

Serving Frederick, PA and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"This was our second time having Glenn out to perform work. We had another contractor doing flooring installation and Glenn was going to have to turn the power off a couple times which would not have been convenient for the flooring people. We really appreciated Glenn being flexible and him willing to reschedule to the next day. Again, he was prompt and had all the materials needed to do the work. He was conscientious about code and load amounts when installing the emergency panel for our portable generator. He was very clean and neat with any mess he made while installing the outlets and ceiling fan. The fan was in our master bedroom and he laid a clean tarp over the bed and carpet before he started. The small holes he made to install the ceiling fan were patched with spackle and are not even noticeable. He even reviewed with us how to operate the fan/light and change the bulbs. Glenn is very personable and profession and very considerate of our home and property. We are very happy to recommend him to our neighbors and friends."
Additional Photos
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+3

Response time7 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Synergy Power Systems, Inc.
Synergy Power Systems, Inc.
5.0(
10
)

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
8 neighbors recently requested a quote
Recommended by100%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
2 neighbors recently requested a quote
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 Fused Electric
Fused Electric
4.8(
17
)

Serving Frederick, PA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Fused Electric recently performed a service upgrade to my home, installed a portable generator hookup, rewired my garage and basement, and other miscellaneous tasks. All work was properly and simply explained and the techs were first-rate and professional. The did a very clean job trenching a new conduit from house to garage. Cost of permits and equipment was dead on, no surprises and I paid exactly the quoted estimate. Prices are competitive for this area and quote was less expensive than most. Techs cleaned up properly and respected my property. Will definitely use again if need arises."
Cabinet Lighting
Standby Generator
Landscape Lighting.
Additional Photos
Additional Photos

+11

Response time8 hrs
Recommended by64%of homeowners
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Generator Install questions, answered by experts

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

The Frederick, PA homeowners’ guide to generator installs

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