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Verified Reviews for Generator Install pros in Vienna, IL

*The Angi rating for Generator Install companies in Vienna, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Vienna, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on April 24, 2024

Find Generator install pros in Vienna

Avatar for Holtzclaw Electric
Holtzclaw Electric
4.9(
9
)

Serving Vienna, IL and surrounding areas

Approved

In business since 2009

Credit card accepted

Offers commercial services

"Brandon and team wired our new build and did an exceptional job. They showed up when they said they would and we couldnâ t have asked for better service."
Response time2 hrs
Recommended by100%of homeowners
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Down Home Electric
New to Angi

Serving Vienna, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

I have been in the electrical union for 14 years, doing everything from residential service calls to running multi million dollar commercial projects. I would love to use my experience and skills to fulfill any need you may have. Whether it is new construction, renovation, or a simple service call. I provide knowledge, craftsmanship, and professionalism to any project you may have.

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Avatar for Hope Electric
Hope Electric
4.8(
9
)

Serving Vienna, IL and surrounding areas

In business since 2019

Free estimates

Offers commercial services

"John installed an outdoor generator connection and a lockout on the main panel. A very fair price, good communication and a very professional, quality installation."
Response time1 day
Response rate99%
Recommended by100%of homeowners
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Fitzgerald Electrical Services -
New to Angi

Serving Vienna, IL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

Fitzgerald Electrical Services is an obvious choice for all your electrical needs. We have the power to perform and can handle any job from computer networking to electrical wiring and panel upgrades for a remodel or addition. We are experts in the installation of in-ground pools and can also assist with repair work associated with your swimming pool and the accessories and equipment. Free Estimates within 30 min drive We proudly obtain a Cape Gerardo License #852, expires March/2014. Outdoor lighting, home theater systems, telephone jacks, surveillance systems, etc..."If There is Wire to It...We Do It".

Kohler Emergency Generators and Transfer Switches
Undergound Electrical Conduits/ Electrical Room
High Voltage Transformer
Landscape Lighting Design and Installation
Data Center Lighting

+15

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Sides Contracting, LLC
New to Angi

Serving Vienna, IL and surrounding areas

Hello, I’m Dan, and myself and my crew are most capable of taking care of nearly every project you may have. With our combined experience in many fields, you’ll get superior service, quality workmanship, and fair, competitive pricing. We work when others won’t, providing standard rates on nights and weekends. \n From home appliance repair and installs, to whole home renovations, HVAC, plumbing and electrical, decks, siding and so much more, not only can we do it, we can do it beyond your expectations. For the rare instances we encounter that we aren’t 100% certain we can exceed your expectations, we can refer someone who we know will satisfy you. \n Free estimates, advice, and all work warrantied. \n Local, same day service most days, 24hr max arrival windows for repairs. \n Give us a chance to impress you, and you’ll be the person who can always tell your friends and family “I know a guy!”

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Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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.

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.

The Vienna, IL homeowners’ guide to generator installs

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

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