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

Serving Mchenry, 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

41 neighbors recently requested a quote
Avatar for Blue Diamond Electric LLC
Blue Diamond Electric LLC
5.0(
21
)

Serving Mchenry, IL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Danny came to my house to install electrical panel. I already had everything for the install the swap the old one out put the new one in really fast I was surprised I told him my lights would flicker sometimes and he check the ground to the meter and it was corroded, he cleaned it off and fix the problem install looks great. Everything works perfect. I will be hiring him again for future projects."
Before & After of the bar area
Electrical Project
Electrical Project
Bar area
Electrical Project

+26

Response time1 day
6 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for AGI Lab, Inc.
AGI Lab, Inc.
5.0(
24
)

Serving Mchenry, IL and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Anton from AGI Lab, responded promptly to my inquiry through home advisor. He quickly schedule me for a quote and assured me there was no charge for the quote. Anton arrived at the scheduled time and assesed the issue at hand. He tested all the components necessary to identify the issue. To our suprise the issue was not at all with our electrical, it was with the actual equipment. He assured us that the electric was fine and nothing to worry about. We are thankful for his time and responsiveness."
Kitchen and living room
Kitchen
Old electrical panel
New elecrical panel
New electrical panel Siemens

+7

Response time9 hrs
Recommended by100%of homeowners
Avatar for WIN Universal, LLC
WIN Universal, LLC
4.9(
20
)

Serving Mchenry, IL and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"WIN Universal was awesome! He showed up when I expected him to and got to work right away. He verified the circuits and replaced the Breaker with a GFCI Breaker to protect all of outlets in my Kitchen. I plan to use him for all future electrical work."
Response time5 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Ferrer Electric
Ferrer Electric
4.9(
97
)

Serving Mchenry, IL and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"I was thrilled with Ferrer Electric. Customer service was exceptional. Their work was on- time, professional, and fully compliant. Eddie was knowledgeable and a pleasure to work with. The work consisted of installing two new 20 amp circuits, multiple outlets, removing and installing four new light fixtures. I highly recommend Ferrer Ellectric."
Light Replacemernt
Light Replacement
Ceiling Fan replacement
Ceiling Fan Replacement
Light Replacement

+22

Response time9 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
Jorge Lovato Electrical
4.8(
31
)

Serving Mchenry, IL and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Jorge was friendly and knowledgeable. Price seemed fair for installing a security camera for me, but we had to work out some challenges getting power to the right spot. Only gripe is that he didn't give a receipt for work done, sort of important for electrical work being done on the house."
Response time3 hrs
Response rate94%
Recommended by100%of homeowners
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Showing 1-10 of 433
Generator Install questions, answered by experts

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. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The Mchenry, IL homeowners’ guide to generator installs

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