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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 Diamond, 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
Avatar for Imperial electric
Imperial electric
5.0(
17
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Diamond, 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."
152 neighbors recently requested a quote
Scardino Electric, Inc.
5.0(
3
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Diamond, IL and surrounding areas

Approved

In business since 1970

Free estimates

Credit card accepted

"Although at this point the work hasn't started, this project had a lot of obstacles. The owner made multiple visits and we spoke several times to help figure out a way to reach goals without charge. He was very generous with his time and helped to figure the most cost effective way to get started and progress. He listens and goes beyond the call of duty. I have no doubts that he is true to his word and integrity. I am happy to have found such an exceptional and attentive electrical contractor. He's my guy from now on."
Response time11 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for GROMM Electric LLC
GROMM Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Diamond, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Electrical professional with 20 years of hands-on experience in residential, commercial, and heavy industrial electrical construction. Raised in a family-owned electrical company that grew from a 10-person shop to a 500-electrician operation serving projects nationwide and internationally.\n\nExtensive field experience across high-demand environments including power plants, steel mills, paper mills, chemical plants, oil refineries, coal mines, Air Products facilities, and large food manufacturing plants.\n\nHighly skilled in:\n • Low-voltage systems, fire alarm, controls, and automation\n • Medium-voltage installations and power distribution\n • Underground services and excavation coordination\n • Bucket truck and service work\n • Smart home and modern electrical systems\n • Residential, commercial, and industrial construction from ground-up to retrofit\n\nCertifications & Credentials:\n • Chicago Licensed Electrician\n • OSHA 10 & OSHA 30\n • MSHA Certified\n • CPR Certified\n • NCCER Certified\n\n

Avatar for Bateman Built Services
Bateman Built Services
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Diamond, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

Bateman Built Services\nVeteran-owned and operated, Bateman Built Services provides reliable HVAC, electrical, and home repair solutions throughout Will County and the surrounding areas. With experience in residential and commercial HVAC systems, we specialize in furnace and air conditioner installations, repairs, maintenance, water heater replacements, electrical repairs, and general home improvements. We take pride in honest communication, quality workmanship, and treating every home as if it were our own. Whether you need a quick repair, system replacement, or help with a larger project, we’re committed to getting the job done right the first time.\n\nServices Include:\n• HVAC Installation & Repair\n• Furnace & Air Conditioning Service\n• Water Heater Replacement\n• Electrical Repairs & Upgrades\n• Thermostat Installation\n• Preventative Maintenance\n• General Home Repairs & Improvements\n\nWhy Choose Us?\n✓ Veteran-Owned & Operated\n✓ Licensed & EPA Certified\n✓ Honest Pricing\n✓ Quality Workmansh

Blower motor
Blower motor
Blower motor
1 neighbors recently requested a quote
Avatar for All Types Electric
All Types Electric
4.7(
14
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Diamond, 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
Showing 1-10 of 29
Generator Install questions, answered by experts

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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. 

The Diamond, IL homeowners’ guide to generator installs

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