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Avatar for Wisconsin Generators LLC
Wisconsin Generators LLC
5.0(
7
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I cannot say enough great things about Jamie and the team at Wisconsin Generators LLC. From the very first conversation, Jamie was professional, knowledgeable, and incredibly responsive. He took the time to walk me through all my options, answered every question thoroughly, and made sure I felt confident in the decision we were making. The installation process was seamless. The crew showed up on time, worked efficiently, and treated our property with respect. Their attention to detail and commitment to doing the job right was obvious from start to finish. Everything was clean, organized, and completed exactly as promised. What really sets Jamie apart is his integrity and customer-first approach. There was no pressure just honest recommendations and clear communication. If you’re considering a standby generator, I highly recommend Jamie and Wisconsin Generators LLC. Reliable service, expert installation, and true peace of mind. Five stars all The way!!"
Whole house back up
Installation Trailer
New propane generator
Partial home backup
Partial home backup

+1

5 neighbors recently requested a quote
Avatar for In Phase Electric & Air
In Phase Electric & Air
4.1(
170
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2009

Emergency services offered

Small jobs welcome

"Got a new air conditioner and furnace installed in a day....Tyler was able to bypass the circuit board in the furnace so that we had air conditioning until they could install the new units.... very professional and timely"
AC Tune Up
Nee an AC Tune Up?
Electrical Panel
Team and Job photos
Team and Job photos

+53

Response time5 hrs
98 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Everlight Solar
Everlight Solar
4.4(
24
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Installation was prompt and the solar panels have worked great so far. The phone app to track your solar production is also really good."
Teamwork
Teamwork
Teamwork
Teamwork
Teamwork

+16

Response time2 days
121 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for WIL-SURGE ELECTRIC, INC.
WIL-SURGE ELECTRIC, INC.
5.0(
5
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"I hired them for some electrical work at my home and was impressed right away with how straightforward and honest they were. The pricing was very fair compared to other quotes I received, and they took the time to explain exactly what I was paying for so there were no surprises. The technician arrived on time, worked efficiently, and clearly knew what he was doing. Everything was completed to a high standard, and you can tell they focus on doing quality work rather than cutting corners. It’s not easy to find someone who balances good pricing with solid workmanship, but they nailed both. Overall, great value for the money. I’d definitely recommend them to anyone looking for dependable service at a fair price, and I wouldn’t hesitate to call them again."
Panel Change
Panel Relocation
Panel Upgrade
Surge Protection
Whole Home Generator

+3

22 neighbors recently requested a quote
Avatar for Midwest Energy Solutions, Inc.
Midwest Energy Solutions, Inc.
5.0(
33
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2001

Emergency services offered

Customers say: Quality work

"Excellent work. They ran electrical wiring in the attic, mounted electric boxes/switches, and installed two ceiling fans/lights. They had the right tools and knew what to do. They did the work for less than original estimate. This was for a job that one other firm (upon seeing the job) turned it down as being too difficult. I highly recommend them."
6 neighbors recently requested a quote
Recommended by9%of homeowners
Avatar for Double U Electric LLC
Double U Electric LLC
4.5(
8
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

At Double U Electric, we take pride in offering every one of our customers electrical services at a fair price, while never straying away from our focus on customer service. We offer full range electrical services for anything around your home.

Additional Photos
Response time10 hrs
29 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for ICRA Electric LLC
ICRA Electric LLC
5.0(
3
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

"Aaron/ICRA Electric did a great job on two projects for me in the Madison area. One was a whole house and panel upgrade on an older home and the second was improvements on a new home. ICRA was great tonwork with, reliable and reasonable on price and scope changes."
Service upgrade
Service upgrade
5 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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. 

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The Sullivan, WI homeowners’ guide to generator installs

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