Get matched with top generator install pros in Sparta, IL

Q: How much does it cost to install a whole-house generator?

• <div><p>The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.</p><p>Generator costs can be broken down by type:</p><ul><li><p>Portable or Emergency Backup Generators (1kW&ndash;7.5kW): $500 to $2,000</p></li><li><p>Partial-Home Generators (9kW&ndash;20kW): $2,000 to $6,500</p></li><li><p>Whole-House Generators (22kW&ndash;48kW): $5,000 to $18,000</p></li></ul><p>To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.</p></div>

Q: Can you use biofuel in a whole-house generator?

• <div><p>In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.</p></div>

Q: Is it better to repair or replace a malfunctioning generator?

• <div><p>It&rsquo;s usually better to repair your generator if it isn&rsquo;t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>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.</p></div>

Q: How long can a whole-house generator run continuously?

• <div><p>Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.</p></div>

Q: Can a 10,000-watt generator run a central AC unit?

• <div><p>A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.</p></div>

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Verified Reviews for Generator Install pros in Sparta, IL

*The Angi rating for Generator Install companies in Sparta, 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 Sparta, 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 September 04, 2025

Reviewed in September 2025
Jacuzzi bath remodel did a fantastic job replacing our old garden tub with a new walk-in shower! We are extremely pleased with the results! Our installers Damien and Daniel were polite, friendly and professional. They explained everything they were doing and did a great job! I highly recommend...
Jacuzzi Bath Remodel of St. Louis
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Reviewed in April 2020
Lead Electrician Mike Liefer and Trainee Brian Mehring were Great! Superior Craftsmen, Very personable, Friendly and explained in detail all questions I had for 2 separate projects! #1 project was changing out my 100 amp service to a 200 amp in my 113 year old home, then installing power to a...
Professional Electric Solutions
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Reviewed in December 2019
Don Uxa provided excellent service installing our Whynter air conditioner/dehumidifier which required venting to the outdoors and mounting to a table indoors. It required a great deal more time and configuration than my husband could accommodate. Don knew exactly what to do with the given...
Super Handy Man, LLC
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Reviewed in February 2019
I am 100% satisfied with quality of the product and the installers. Salesman was also very professional and not high pressure. Refreshing in this day and age.
LEI Home Enhancements
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Reviewed in October 2017
On September 27, 2017 I called Beezy’s at (618-978-4283) and we set up an appointment for him to come and install my new pool liner on October 10, he said he we be at my house about 10:00 a.m. that day. The night before I text him (at the same phone number) to confirm that he will be at my house...
Beezy's Pool Service
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Reviewed in May 2017
I had new vinyl tile floor installed and needed it cleaned and waxed. 5 days after their service was performed, there was debris caught in the wax in one corner and there was a gray material collecting in the wax on the tiles making the floor look 20 years old. I had their rep come out and was...
Deep Kleen & Maintenance
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Reviewed in October 2016
This flooring install went smoother than I could have imagined. The process of picking out the flooring went quickly and I especially liked the fact that they came to my home with samples. It was very refreshing to have the follow-up calls to make sure I was happy with the whole process.
Ground FX Flooring
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Reviewed in July 2016
Chad Collins of Pro Sewer & Drain did my installation and he did a fantastic job! He got me on his schedule promptly and finished all of the work the same day. He checked everything to make sure it worked properly and then thoroughly cleaned up when he was done. He was professional,...
Dry Masters
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Reviewed in April 2016
Everyone, from the Sear's Rep to the roofers who installed my new roof were very professional. The roofing company did an amazing jod cleaning up all the debrisame. I ordered my new roof and it was installed within 2 weeks and I love it.
Sears Home Improvements - Roofing
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Reviewed in June 2015
Tom and his crew installed a retaining wall last September and did a great job. We had him back this spring to do some more extensive work. Two huge concrete porches were removed from the front of the house and replaced with beautiful stone ones. An existing concrete walkway was removed and...
Wall Landscape Services LLC
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Find Generator install pros in Sparta

Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Sparta, IL and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"All work was done professionally and on time. Installers were very courteous and neat."

Response time3 days

6 neighbors recently requested a quote

Recommended by94%of homeowners

Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Sparta, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"CD Electric was fantastic. They added electrical outlets to the interior and exterior of my home and installed an exterior light. Chase was very thorough with the estimate he provided me and completed the job in the time he said it would take. I would definitely hire them again for any future jobs and I highly recommend them to anyone else."

Response time3 days

Recommended by100%of homeowners

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Tri-State Water, Power & Air

4.8(

)

Fixed Generator - Install

Serving Sparta, IL and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Installed a back-up sump pump. Great job! Thank you!"

51 neighbors recently requested a quote

Recommended by97%of homeowners

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Sparta, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Very pleased with the quality of the kitchen cabinet installation. Company we contacted with for counter tops also commented on the quality of their work. Customer service was excellent. They arrived as scheduled and quickly responded to messages. Work was done well and on time."

Response time2 days

Response rate90%

78 neighbors recently requested a quote

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Sparta, IL and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"618 did an excellent job. There were right on time, worked quickly, cleaned up and were very friendly. They seemed knowledgeable about electrical work and were more than fair with cost. They even installed my DirectTV! I love what they did and would most definitely recommend them."

Response time8 hrs

4 neighbors recently requested a quote

Recommended by75%of homeowners

Fixed Generator - InstallFixed Generator - Repair

Serving Sparta, IL and surrounding areas

In business since 1993

Emergency services offered

Warranties offered

"The installation team was very professional yet friendly. They worked hard and cleaned up any mess. They were respectful of my home by laying plastic on the carpeted area and wearing booties."

Without Tiger Signature Drainage Matting

+27

Response time1 day

Recommended by79%of homeowners

Fixed Generator - InstallPortable Generator - Install

Serving Sparta, IL and surrounding areas

In business since 2000

Free estimates

"My husband and I were very pleased with Jason Kunz Electric, Jason was very prompt on giving us an estimate on a whole house generator and the follow through with the installation was very good also. We would definitely recommend Jason! Paul & Judy Struharik"

Recommended by100%of homeowners

Generator - Install - For BusinessGenerator - Repair - For Business

Serving Sparta, IL and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

Response time1 day

Recommended by100%of homeowners

Request Quote

Tri-State Water, Power & Air

4.0(

)

Fixed Generator - Install

Serving Sparta, IL and surrounding areas

In business since 1993

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Response time1 day

Response rate96%

Recommended by100%of homeowners

Request Quote

West KY Home Power, LLC

0.0(

)

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Sparta, IL and surrounding areas

In business since 2007

Free estimates

Emergency services offered

West KY Home Power, LLC, has been doing generator installations and service work for over 15 years. Call us today and never be without power again!

Recommended by100%of homeowners

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Showing 1-10 of 16

Generator Install questions, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000
Partial-Home Generators (9kW–20kW): $2,000 to $6,500
Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Sparta, 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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