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Best generator install pros near Alton, IL

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

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
357
)
Fixed Generator - InstallFixed Generator - Repair

Serving Alton, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"They came in real quick and fixed everything for us. We had them install a toilet for us about a year ago too, and since they'd done such a good job, we hired them now to fix our situation."
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+5

308 neighbors recently requested a quote
Recommended by73%of homeowners
CF Handyworks
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Alton, IL and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

Hi, I’m Caleb—a veteran and reliable local handyman serving Wood River, Edwardsville, Glen Carbon, and the greater St. Louis area. I specialize in handyman services, carpentry, and light electrical work, helping homeowners handle everything from small repairs to larger home improvement projects.\n\nWhether you need light fixtures installed, outlets replaced, drywall repaired, doors hung, trim work, or custom carpentry, I bring attention to detail and a commitment to doing the job right the first time.\n\nI take pride in clear communication, showing up on time, and delivering clean, professional results. No shortcuts, no surprises—just quality work you can count on.\n\nSend me a message with your project details or photos, and I’ll help you get it done right.

DVD Shelf L Angle
DVD Shelf R Angle
Front R Angle
Back R Angle
Ceiling Lights Install

+3

8 neighbors recently requested a quote
Avatar for Grasser Electric
Grasser Electric
4.6(
30
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Alton, IL and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"Things went great with them and we are still using them. As soon as our bar is installed, they are going to finish up the electrical work. They were fast, reliable and really nice people. They were also on time. We got bids and they had the lowest bid."
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.
Recommended by92%of homeowners
Avatar for Bi-State Electric, LLC
Bi-State Electric, LLC
4.6(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Alton, IL and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We hired Bi-State Electric to run a 20 amp circuit from our house to our new garden shed. This required Scott to hand dig a trench about 25 feet long between the house and shed. He installed a small porch light on the shed and a ceiling fan/light inside with switches to operate both. He also installed a total of 5 outlets at various locations inside the shed. As an added service, Scott installed a Whole House Surge Protector to our electrical panel and provided a safety inspection of the panel at no additional cost above his quoted price. Once the work was completed, the County Inspector came out and gave his stamp of approval."
Storm Damage Repair
Back up Generator
200 amp Service Upgrade
Scott
Recommended by88%of homeowners
Pete's Electric Company
4.8(
11
)
Fixed Generator - InstallPortable Generator - Install

Serving Alton, IL and surrounding areas

In business since 1973

Free estimates

Emergency services offered

"Although my wife and I were called to New York for a death in the family, we felt very comfortable allowing Sam access to the entire house in our absence. He made decisions regarding installation of the Propane tank on our side yard which we found more than acceptable. We would have no reservations in recommening Sam to our friends and neighbors."
Response time3 days
Recommended by72%of homeowners
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Generator Install FAQs, answered by experts

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

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.

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.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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.

The Alton, IL homeowners’ guide to generator installs

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