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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon14
    Verified generator installs reviews

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

Avatar for Mister Sparky Electric - Cincinnati
Mister Sparky Electric - Cincinnati
4.2(
176
)
Fixed Generator - InstallPortable Generator - Install

Serving Montgomery, OH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Credit card accepted

"The young man who came to the house was professional and personable. He repaired the fixture wiring which had been installed improperly and installed the proper box. Now that I am repairing the ceiling under the fixture before putting the light back up, I realize that I don't have the screws that should have supplied with the ceiling box. But as a whole, Mr. Sparky was responsive and efficient. I cannot speak to the price (which may have been a bit high) as I have not used an electrician in several years. Deano"
Mister Sparky Team
Get it done right, get it done safely!
Your electrical repairs experts!
Available 24/7 for your electrical emergencies
Lighting upgrades? Call in the pros.

+1

200 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Energized Electric LLC
Energized Electric LLC
5.0(
9
)
Fixed Generator - Install

Serving Montgomery, OH and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Woody and his son did an excellent job installing 2 exterior lights for us, moved cat 6 cable and installed jacks for Ethernet based internet connection, repaired ventilation fan in our master bath. We will be working with them again for future projects."
Additional Photos
Response time9 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Paff Electric & Solar
Paff Electric & Solar
4.3(
7
)
Fixed Generator - Install

Serving Montgomery, OH and surrounding areas

Approved

In business since 1985

Credit card accepted

Offers commercial services

Paff Electric, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

Response time4 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Apollo Home
Apollo Home
3.7(
73
)
Fixed Generator - InstallFixed Generator - Repair

Serving Montgomery, OH and surrounding areas

Approved (Corporate)

In business since 1969

Free estimates

Emergency services offered

"very timely and used them a lot and courteous and knowledge everything was taken care of i had a couple other questions he answered and explained things and what was still happening with the sink and that it wasn't installed correctly and he explained all this very helpful."
Furnace Installation
Heat Pump Installation
Response time6 hrs
46 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for River City Electrical Services
River City Electrical Services
5.0(
1
)
Fixed Generator - InstallPortable Generator - InstallPortable Generator - Repair

Serving Montgomery, OH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

At River City Electrical Services, we focus on providing safe, reliable electrical work homeowners can trust. Whether it’s installing new lighting, troubleshooting electrical issues, upgrading panels, or adding outlets, we handle every job with attention to detail and a commitment to doing the work right the first time.\nWith years of hands-on experience in residential electrical service, we understand how important it is for homeowners to feel confident in the work being done in their home. We take pride in clear communication, honest pricing, and clean, professional workmanship.\nOur goal is simple: make your electrical project easy and stress-free while delivering quality results that last.\nIf you’re looking for a dependable electrician who shows up on time, respects your home, and stands behind the work, we’d be happy to help with your project.

2 neighbors recently requested a quote
Kennylectric
New to Angi
Portable Generator - Repair

Serving Montgomery, OH and surrounding areas

Approved

Licensed electrician with 10 years of hands-on experience offering reliable, high-quality electrical services for residential, small commercial and industrial projects. Whether you need a quick fix or a full installation, I bring professional expertise and attention to detail to every job.\n\n✔ 10 years of licensed experience\n✔ Troubleshooting & repairs\n✔ Lighting installation & upgrades\n✔ Outlet, switch, and panel work\n✔ Clean, safe, and code-compliant service\n\nDependable, honest, and committed to getting the job done right the first time. Flexible availability for evenings and weekends.\n \nPlease reach out to schedule your next project.

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Generator Install FAQs, answered by experts

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. 

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

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.

The Montgomery, OH homeowners’ guide to generator installs

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