Top-rated generator install pros.

Get matched with top generator install pros in Brookfield, WI

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Brookfield, WI?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Brookfield, WI

*The Angi rating for Generator Install companies in Brookfield, WI 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 Brookfield, WI 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 October 08, 2025

Find Generator install pros in Brookfield

Avatar for M&L Electrical Solutions LLC
M&L Electrical Solutions LLC
4.9(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Brookfield, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"They were able to come out at a time that worked for me. The installer was very friendly, did a great job and explained everything to me. Thanks again!"
Remodel
Electrical Project
Electrical Project
Remodel
Electrical Project

+28

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Request Quote
Zander Electrical Services, LLC
4.8(
28
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Brookfield, WI and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Very pleased with quality, promptness following schedule, and care taken not to damage hosta plants in the construction area to install 18 kw whole home generator and transfer switch. The project went smoothly in spite of a one day rain delay. The generator and transfer switch were tested with a simulated loss of utility power and everything worked as expected - generator started and transfer switch allowed the generator to power the house automatically. When utility power was reenabled the transfer switch moved back to utility power position and the generator shut down. The price was fair and would certainly have no reservations to recommend them for any electrical work and would use them again."
Response time1 day
1 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for Wisconsin Generators LLC
Wisconsin Generators LLC
5.0(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Brookfield, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Very prompt and professional, installation was in a timely manner. Very helpful with any questions and explanations. After job was complete. Highly recommended."
Whole house back up
Installation Trailer
New propane generator
Partial home backup
Partial home backup

+1

40 neighbors recently requested a quote
Request Quote
Avatar for Current Electric Company
Current Electric Company
4.7(
140
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Brookfield, WI and surrounding areas

Approved

In business since 1983

Emergency services offered

Credit card accepted

"Current Electric helped us tremendously with our Electrical Box upgrade. We first wanted our power line to be placed underground and Current Electric helped us with the logistics with contacting the electric company. Second, when it was time for the installation to happen, the technicians came on time, worked diligently, and cleaned up after the project was completed. I would hire them for any of our future projects."
Kitchen Remodel
Landscape Lighting
Restaurant Lighting
Lighting in newly built hotel
Commercial Solar

+2

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Mister Sparky of Brew City
Mister Sparky of Brew City
4.9(
11
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Brookfield, WI and surrounding areas

Approved

Super Service Award Winner

In business since 1996

Free estimates

Emergency services offered

"This is the first time I used Mr. Sparky, and they will definitely be my new go to electricians! I love that they are a small locally owned business! I called about a small non-urgent project, and they were able to come the same day, despite being backed up due to many local flooding issues. Kasey was extremely friendly and helpful on the phone and communication was excellent from start to finish. James showed up on time and was very sweet, yet professional, and my cats even loved him :) He was respectful of me and my property, and took care of my issue in no time. The price was very reasonable! I will definitely call them again, and would highly recommend!"
Branded Panel Install
Installation
Installation
Installation
Installation

+52

Response time1 day
Response rate93%
110 neighbors recently requested a quote
Request Quote
Avatar for HORIZON ELECTRIC COMPANY
HORIZON ELECTRIC COMPANY
4.7(
32
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Brookfield, WI and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Installer did a great job."
Miscellaneous
Miscellaneous
Miscellaneous
Miscellaneous
Miscellaneous

+6

66 neighbors recently requested a quote
Recommended by57%of homeowners
Request Quote
Avatar for Crown Electrical, LLC
Crown Electrical, LLC
4.6(
17
)
Fixed Generator - InstallPortable Generator - Install

Serving Brookfield, WI and surrounding areas

Approved

In business since 2016

Emergency services offered

Warranties offered

"Had them come out and install 2 ceiling fans very professional and fairly fast worked great and they cleaned up well after the install"
Response time5 hrs
3 neighbors recently requested a quote
Recommended by82%of homeowners
Request Quote
Avatar for Powerhouse, LLC
Powerhouse, LLC
5.0(
22
)
Generator - Install - For Business

Serving Brookfield, WI and surrounding areas

Approved

In business since 2002

Free estimates

Offers commercial services

"Jim was very fast at coming to evaluate what we all needed to have done. He did a great job and cleaned up after he was finished. While he was here we had an issue come up for another electrical problem and he ordered the part and came back as soon as he got the part. Will definitely hire him again when we need electrical work."
Response time12 hrs
Recommended by95%of homeowners
Request Quote
...
Showing 1-10 of 65
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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

The Brookfield, WI homeowners’ guide to generator installs

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

See all articles