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Verified Reviews for Generator Install pros in Oswego, IL

*The Angi rating for Generator Install companies in Oswego, 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 Oswego, 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 July 03, 2025

Find Generator install pros in Oswego

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)

Serving Oswego, 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.

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+3

39 neighbors recently requested a quote
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Avatar for Imperial electric
Imperial electric
5.0(
17
)

Serving Oswego, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I had an outrageous quote (nearly $2K) from a big multi service contractor and looked here for a small business electrician. Daniel of Imperial Electric came out straight away and fixed the problem down the line that had taken out power to two of the kitchen outlets. It was a puzzle but he solved it for $260. I will be referring him to friends and family."
151 neighbors recently requested a quote
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Avatar for Top Grade Electric, CO
Top Grade Electric, CO
4.8(
20
)

Serving Oswego, 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

5 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,284
)

Serving Oswego, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Four Season service was awesome. The installers were friendly, professional, and knowledgeable. The installers cleaned up work area after they finished the job."
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Response time9 hrs
30 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Smart Electric
Smart Electric
4.7(
34
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: Quality work

"Good folks that give good work for what you are paying. Every other electrician I spoke with wanted double what these guys were charging just for installing a single doorbell. Well these guys were happy to do honest work for a fair price. I would definitely use them again."
Response time10 hrs
Response rate92%
Recommended by96%of homeowners
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Widur Corporation
4.6(
16
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Wojtek was hired to install and rewire several ceiling fans, remodel the lighting in the kitchen and move two ceiling lights over dining tables. He worked very well with my wife in designing the kitchen lighting. Wojtek is very neat and leaves the house with no mess left behind. He is thorough and was on time for each of the three appointments. I had used him once before to wire and install an upstairs ceiling fan and was so impressed I only had him quote this job."
Recommended by93%of homeowners
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Avatar for M.T. Kelley Electric LLC
M.T. Kelley Electric LLC
5.0(
4
)

Serving Oswego, IL and surrounding areas

Approved

In business since 1994

Warranties offered

Credit card accepted

"Hello, MTK electric was fantastic to deal with, their communication was top notch, they were very transparent about the entire process and the overall price was fair. Would definitely look for their assistance in the future."
Response time8 hrs
Response rate99%
2 neighbors recently requested a quote
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Avatar for Enable Electric
Enable Electric
4.8(
3
)

Serving Oswego, 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
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Scardino Electric, Inc.
5.0(
3
)

Serving Oswego, 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
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Avatar for Ls industrial repair
Ls industrial repair
5.0(
2
)

Serving Oswego, IL and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

At LSI repair we offer only the best and fair prices. We also specialize in heat treating furnaces but we cover a large array of services from residential to commercial from small to big.

3 neighbors recently requested a quote
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Generator Install questions, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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. 

The Oswego, 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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