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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Big Rock, IL and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game.\nWe provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

21 neighbors recently requested a quote
Avatar for Fout Electric, LLC
Fout Electric, LLC
5.0(
21
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Big Rock, IL and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Josh did all my Electrical for the restaurants that I did work for along with the new homes that I built and the commercial buildings that I built he?s always there on time he calls if something goes wrong and let you know and he?s real affordable and he?s easy to work with I strongly recommend him"
2 neighbors recently requested a quote
Recommended by65%of homeowners
Avatar for Top Grade Electric, CO
Top Grade Electric, CO
4.8(
20
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Big Rock, IL and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Steven and his guys upgraded my breaker panel and installed an EV charger. Communication was great and installation was quick while maintaining high quality work. All this for a reasonable price."
Basement Remodel
Basement Remodel
Shower lights
General lighting
Cabinet lighting

+35

6 neighbors recently requested a quote
Recommended by45%of homeowners
Avatar for Imperial electric
Imperial electric
4.8(
19
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Big Rock, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Daniel from Imperial Electric did an excellent job for us. We had a relatively small issue that he rectified for us very quickly and then did a very thorough inspection of our entire house at our request. He made a number of recommendations to upgrade our old electrical system that were practical, reasonable and in line with current codes."
20 neighbors recently requested a quote
Avatar for Enable Electric
Enable Electric
4.8(
3
)
Fixed Generator - Install

Serving Big Rock, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"My experience working with Carlos at Enable Electric was seemless. Carlos was extremely attentive with communication, on time for visits and completed my electrical panel swap successfully. I highly recommend Enable Electric and will most definitely be hiring them again for additional projects in the very near future!"
Response time5 hrs
Recommended by100%of homeowners
Scardino Electric, Inc.
5.0(
3
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Big Rock, IL and surrounding areas

Approved

In business since 1970

Free estimates

Credit card accepted

With over 50 years of business serving the Chicago metro area, Scardino Electric, Inc., is the way to go for all your wiring and panel upgrade needs. We take great pride in our extreme professionalism, timeliness, and superior customer service on every job. We make sure to do excellent work on every visit, answer all questions, and develop lasting relationships with all our clients so, that the next time service is needed, there will be no question on who to call. Contact us today for a free estimate. Satisfaction Guaranteed!

Response time11 hrs
Response rate100%
Recommended by100%of homeowners
Omar Santacruz
5.0(
1
)
Fixed Generator - InstallPortable Generator - Install

Serving Big Rock, IL and surrounding areas

Approved

Hello homeowner/customer, my name is Omar Santacruz and I’m your local electrician, I have 5+ years of electrical knowledge and 10+ years of mechanical experience. When it comes down to any repair or fix please don’t hesitate to call and ask around, I will do my best to give you all details and break down costs regarding any upcoming projects, past repairs or even present emergencies. Feel free to reach out @(630)352-6190\nHope to get to work with you, God bless.\n\n¡Hola, propietario(a)/cliente!\nMi nombre es Omar Santacruz y soy su electricista local. Cuento con más de 5 años de experiencia en trabajos eléctricos y más de 10 años de experiencia en mecánica. Cuando se trate de cualquier reparación o instalación, no dude en llamarme o hacer cualquier pregunta. Con gusto le brindaré toda la información necesaria y un desglose claro de los costos relacionados con proyectos futuros, reparaciones anteriores o incluso emergencias actuales.\nNo dude en comunicarse conmigo al (630) 352-6190.

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Generator Install questions, answered by experts

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

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

The Big Rock, IL homeowners’ guide to generator installs

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