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Verified Reviews for Generator Install pros in Sandwich, IL

*The Angi rating for Generator Install companies in Sandwich, 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 Sandwich, 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 30, 2026

Find Generator install pros in Sandwich

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

Serving Sandwich, 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.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

20 neighbors recently requested a quote
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Avatar for Imperial electric
Imperial electric
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Sandwich, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Daniel from Imperial Electric did an excellent job for us. We had a relatively small issue that he rectified for us very quickly and then did a very thorough inspection of our entire house at our request. He made a number of recommendations to upgrade our old electrical system that were practical, reasonable and in line with current codes."
43 neighbors recently requested a quote
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Avatar for Top Grade Electric, CO
Top Grade Electric, CO
4.8(
20
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Sandwich, 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

4 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for Enable Electric
Enable Electric
4.8(
3
)
Fixed Generator - Install

Serving Sandwich, 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
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Sandwich, 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
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Avatar for Blue Dragon LLC
Blue Dragon LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Sandwich, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

My name is Carloa I have work 6 years as a hvac technician and installer. I work remodeling for 4 year. I’m honest and straight forward with my work

Ac replacement
Duct clean
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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.

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.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Sandwich, 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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