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

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

Serving Ottawa, 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

17 neighbors recently requested a quote
Avatar for Electric Mechanical Solutions LLC
Electric Mechanical Solutions LLC
5.0(
26
)
Fixed Generator - Repair

Serving Ottawa, IL and surrounding areas

In business since 2005

Emergency services offered

Warranties offered

"Electric Mechanical Solutions did a great job with installing new landscaping lighting and transformers around my house. Very detailed and precise, and communicated every step of the way. Would hire again!"
Lighting installation
Lighting installation
Lighting installation
Lighting installation
Lighting installation

+39

Response time4 hrs
Response rate93%
Recommended by4%of homeowners
Avatar for All Types Electric
All Types Electric
4.7(
14
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Ottawa, IL and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Great! Fast friendly and even took thier shoes off at the door,very respectful of my home and installed 3 ceiling fans in less then an hour definitely recommend hiring fees for service are reasonable as well. I've already called him back less then a month later for other electrical work I need done and got back to me super fast."
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+19

Recommended by100%of homeowners
Avatar for Imperial electric
Imperial electric
4.8(
19
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Ottawa, IL and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"Assessed all outlets and changed those that were improperly installed and could damage things plugged into them, and grounded the outlets that were not grounded. 19 recepticles in all. Price was good and arrived on time, and clean."
14 neighbors recently requested a quote
MB’s Home and Audio
4.9(
9
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Ottawa, IL and surrounding areas

In business since 2020

Free estimates

"CSA installed a custom home theater, a ELK security & automation system, a driveway gate system with intercom, Russound whole house audio/intercom system in 12 different rooms, Lutron Radio RA lighting control system and 12 cameras on exterior of our house. I m extremely impressed with CSA from our first walk through, the design build they put together, the options they proposed to my wife and myself and how Chad kept it as simple as possible when presenting what our system was capable of doing. It s overwhelming but he did a fantastic job to try and keep it in Lameon terms. From the pre-wire to day of final completion CSA went above and beyond our expectations. You can truly tell they love what they do and have a passion for it. When our house was completely finished CSA was the last contractor to finish do to everything in our house is automated and controlled through our wall touchscreens, laptops and mobile devices. We can open our entry or exit driveway gates from our house phone, touchscreens or any mobile device that CSA installed a custom built app on. While we re home or anywhere in the world as long as we have 4g or WiFi. All of our exterior lights are set up to be at our desired level from dusk to dawn and when anyone walks past any camera at night the light level of the closet light brightens for a few minutes and after camera no longer detects motion level goes back down. It s just amazing what this system can do. We have our main front door locks, side entry garage door lock and all 4 of our garage doors all controlled by this system and if a door is opened and we re not within 1000 yards of our home we re notified. We couldn t be more pleased with the job CSA did and most of all the time they took to train us on how to use and control every aspect of our whole smart home. Thank you again CSA. We highly recommend anyone in the need of security, audio & video and home automation needs to contact CSA. We had 3 other A/v automation contractors do drawings and pricing proposals and what stood out the most with CSA is the options we were given, the time they spent with us on making sure we were aware of what they were capable of doing and providing us with 3 separate pricing options from platinum to silver. They were the only contractor that did that. This was our final home we will build and CSA knew how special this dream home meant to us so thank you again CSA for going above and beyond from start to finish."
Response time2 days
Recommended by100%of homeowners
Showing 1-10 of 14
Generator Install FAQs, answered by experts

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

The Ottawa, IL homeowners’ guide to generator installs

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