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TRUSTED BY JOHNSTOWN, OH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon33
    Verified generator installs reviews

Find Generator install pros in Johnstown

Avatar for Mr. Electric of Columbus
Mr. Electric of Columbus
4.4(
598
)
Fixed Generator - RepairFixed Generator - InstallGenerator - Install+4 more

Serving Johnstown, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"We called Mr. Electric to provide a quote for removal of existing and installation of a new light fixture in two-story foyer. They were very responsive and sent out a technician within a couple of hours to provide a quote. Once the technician arrived, he proceeded to complete a in-home survey of our electrical panel, exterior electric box and electric meter. He then reviewed the scope of work and came back inside within about 10 minutes. He went over the home inspection and then provided the quote that’s where things went sideways. The quote was $1169! 😳 Again, that is to remove an existing light fixture in a foyer and replace it with a more current contemporary styled one. We explained that the quote was excessive based on our estimates from other providers. He indicated that they had just revised their pricing and that their pricing was in line the other major electric service providers. Needless to say, we explained to the technician that we would not be going with their services due to the price point."
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3 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Safe Electric and Plumbing
Safe Electric and Plumbing
4.6(
43
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+3 more

Serving Johnstown, OH and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Guys showed up on time and quickly diagnosed and fixed problem. While here we discussed she and load on house panel and had them install a whole-house surge protector. I had a post house get toasted by a lightning strike so seemed prudent given electronics in house."
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+11

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Columbus Breeze Electric, LLC
Columbus Breeze Electric, LLC
5.0(
10
)
Portable Generator - Install

Serving Johnstown, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Highly recommend this company. The owner called me on a Saturday afternoon to discuss my project after I submitted my request about an hour earlier on Angi. A technician, Carter, was onsite on Monday and was professional, courteous, and efficient. He serviced what I needed done, and the price was reasonable."
Switch Gear Installation
Response time6 hrs
Response rate97%
5 neighbors recently requested a quote
Avatar for Electric Medic
Electric Medic
4.5(
20
)
Fixed Generator - Install

Serving Johnstown, OH and surrounding areas

Approved

In business since 2000

Emergency services offered

Small jobs welcome

"

We want you to know that we are very pleased with the quality of service Undefined Heights Electrical & Data LLC provided. I was impressed from our first appointment. Your estimate was not only the most affordable compared to the other four companies I received estimates from, but it was the most detailed. I really appreciated the time spent on educating me on your solution for our electrical work needed. This made me understand the process and reasons of the work that needed to be done. I felt confident I was making the right decision.

Not only were you the most affordable and offered the best long term solution, but you saved me money by being honest and not adding additional unnecessary costs. You also went above and beyond by adding a few extras that made my life easier. We sincerely appreciate your responsiveness and the way you conduct business. Your team completed this project on schedule. They were extremely professional and diligent during our tedious project. I was also surprised by how hands on you were, and it was a pleasant surprise to have you on site.  

I admire your tenacity, I?m still shocked at the fact that you worked outside during a sever e thunderstorm to get the job done on time.  This was a complicated job, you understood the sense of urgency and you were efficient enough to get it done in a day. Inspection passed with flying colors.

We will be recommending Undefined Heights Electrical & Data LLC to others because of our satisfaction with your service. We look forward to doing business with you for years to come. Undefined Heights Electrical & Data LLC is officially my go to company for any electrical issues I encounter for my primary residence and investment properties.


"
Response time2 days
Response rate98%
9 neighbors recently requested a quote
Avatar for Magers Home Services
Magers Home Services
3.7(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Johnstown, OH and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Mangers Home Service electrician, Shane , did an excellent job of repairing my front porch light and the garage door light! He was friendly and professional! Explained what needed to be done to each light! His charge for service was quite reasonable! I highly recommend Shane for any electrical work!"
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+14

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Home Improver
5.0(
2
)
Fixed Generator - Install

Serving Johnstown, OH and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time4 hrs
Recommended by100%of homeowners
Showing 1-10 of 44
Generator Install questions, answered by experts

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

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

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

The Johnstown, OH homeowners’ guide to generator installs

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