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Best generator install pros near Dayton, KY

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

Avatar for River City Electrical Services
River City Electrical Services
5.0(
1
)
Fixed Generator - InstallPortable Generator - InstallPortable Generator - Repair

Serving Dayton, KY 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
Avatar for Denny's Electric & Excavating
Denny's Electric & Excavating
4.7(
86
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dayton, KY and surrounding areas

In business since 1972

Emergency services offered

Credit card accepted

"From the initial contact for the estimate, to the final review of the work, everything went very well. The staff did a very professional job with the installation, and they exceeded my expectations. They did it right , and did not rush things. We are very pleased with how the entire job went. Very satisfied."
Additional Photos
Recommended by93%of homeowners
Avatar for Wehrle Electric, LLC
Wehrle Electric, LLC
5.0(
16
)
Portable Generator - Install

Serving Dayton, KY and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"I had a great experience with Wehrle Electric. Theyâ  ve been to my house 3 times for various different projects (fixed outdoor outlets, added outlets for my TVs, replaced fixtures/fans). On time, clean and adorable. Would hire again and highly recommend!"
Response time4 hrs
Recommended by92%of homeowners
Avatar for Tri State Mechanical Consultants
Tri State Mechanical Consultants
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business+2 more

Serving Dayton, KY and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"Our HVAC system was 24 years old when Steve assessed our needs and listened to what we were looking for in a new HVAC system. His recommendations, costs, warranty, and commitment for any follow up services, were exactly what we were looking for! We spoke with several satisfied customers and were absolutely convinced to go with Tri State Mechanical Consultants and Steve! Steve was very patient with me as I asked dozens of questions while he installed our new systems. To this day, Steve will call to see if I have any questions or issues. I highly recommend this company and Steve!"
Response time4 hrs
Recommended by100%of homeowners
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Generator Install FAQs, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Dayton, KY homeowners’ guide to generator installs

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