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TRUSTED BY MADISON, OH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified generator installs reviews

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

Avatar for Tri-County Electric Service
Tri-County Electric Service
4.9(
61
)
Fixed Generator - Repair

Serving Madison, OH and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"Chris and his assistant did an excellent job of explaining the situation and options for repairing or replacing our hot water heater. In the end we chose to replace it and they were able to secure a new unit and install it within 3 hours. Would definitely recommend Chris and Tri-County Services and will use them again if another situation arises."
Side House Electric
Front Door Electric
Residential Electric
Electrical Installs
Kitchen Lighting

+10

12 neighbors recently requested a quote
Recommended by4%of homeowners
Avatar for WyattWorks
WyattWorks
4.7(
575
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Madison, OH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Emergency services offered

Warranties offered

"On Thursday, the technician (David) came to my house to look at two projects: replacing a leaking electric water heater, and installing a new gas line (in my crawlspace) to my masonry fireplace so I can convert from wood to gas logs. He explained my options, and quoted prices for these options. I asked if he could do the work on the upcoming Saturday, and he scheduled this before he left! I ordered the gas tankless water heater and the gas line to my fireplace. By the way, I had 3 different plumbers look at this work, WyattWorks had the lowest prices. On Saturday David and Alex arrived early in the morning and worked past 6:30 PM to complete both jobs. The installations were great. Everything to code, and with neat, high quality workmanship and thoroughly tested. They cleaned up the work areas and hauled away my old water heater. In other words, a typical WyattWorks job."
Additional Photos
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+1

Response time8 hrs
20 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Lakewise Electric LLC
Lakewise Electric LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - Repair

Serving Madison, OH and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"I had Lakewise Electric install a Tesla Wall Connector at my home and was very pleased with the experience. Communication was excellent, the work was professional, and the installation was completed neatly with attention to detail. The team took the time to explain the options and delivered a clean, high-quality result. I would definitely recommend Lakewise Electric to anyone looking for EV charger installation or other electrical work."
Duplex service change
Duplex service change
100 amp panel change
100 amp panel change
Service upgrade

+2

5 neighbors recently requested a quote
Avatar for In His Name Electric
In His Name Electric
5.0(
17
)
Fixed Generator - Install

Serving Madison, OH and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Jay installed a faucet on a kitchen sink at my home. He is listed as an electrician, but he can do plumbing work as well. I will hire him again. It's good to have some one who knows more than one trade. He was friendly, and professional."
In His Name Electric Accreditation
Certificate of Accreditation
Foyer new light
Kitchen and dinette
New Dining light

+2

Response time2 days
Response rate86%
Recommended by93%of homeowners
Sears Home Services - Whole Home Generators
4.5(
2
)
Fixed Generator - Install

Serving Madison, OH and surrounding areas

In business since 1992

Free estimates

Credit card accepted

Unlike that noisy portable generator that you have to hook up when the power goes out, a standby generator is a permanent, professionally installed unit that automatically turns on the moment the power goes out. Standby generators run powerfully, quietly and efficiently until the power outage ends. \n \n \n \nThe Cummins QuietConnect™ Series includes compact, powerful and quiet whole home standby generators suited to a range of homes sizes. And Cummins standby generators are backed by an industry-leading warranty. \n \n \n \nSears installs two packages of Cummins QuietConnect air-cooled standby generators — standard air-cooled models that operate to 0 degrees Fahrenheit, and extreme-temperature air-cooled models that operate to –40 degrees Fahrenheit. The air-cooled generator models have an output of 13 to 20 kilowatts, to suit different sizes of homes.

Recommended by100%of homeowners
Edgewater Electric Service LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business+1 more

Serving Madison, OH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"We needed kitchen general lighting on a 12' high ceiling, over and under cabinet lighting and a chandelier installed. Carl is very professional in his work and was on time and respected our home. He also cleaned up the work area before he went home. He knows what he is doing and at end of the day he got the job done at a reasonable price. Our home is more beautiful now. Carl is highly recommended."
Response time2 hrs
Recommended by100%of homeowners
Showing 1-10 of 23
Generator Install FAQs, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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.

The Madison, OH homeowners’ guide to generator installs

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