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Verified Reviews for Generator Install pros in Altoona, WI

*The Angi rating for Generator Install companies in Altoona, 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 Altoona, 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 November 17, 2025

Find Generator install pros in Altoona

MJF Contracting, LLC

No reviews yet

MJF Contracting, LLC

No reviews yet
21 years of experience

MJF Contracting, LLC is a electrical construction and service company. We except payment with major credit cards or cash at the time of service. Terms can be arranged on larger projects.

MJF Contracting, LLC is a electrical construction and service company. We except payment with major credit cards or cash at the time of service. Terms can be arranged on larger projects.

Brightside Electric LLC

5.00(
7
)

Brightside Electric LLC

5.00(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I am a Wisconsin licensed Master Electrician with 20 years of experience in residential, commercial, AG, industrial, service work and trouble shooting. I also offer free estimates.

"Job was done timely and on our time schedule. Cleaned up after themselves daily. Made suggestions that was affordable and looks great."

Dawn W on November 2020

I am a Wisconsin licensed Master Electrician with 20 years of experience in residential, commercial, AG, industrial, service work and trouble shooting. I also offer free estimates.

"Job was done timely and on our time schedule. Cleaned up after themselves daily. Made suggestions that was affordable and looks great."

Dawn W on November 2020

My Classic Car Trader LLC

2.00(
1
)

My Classic Car Trader LLC

2.00(
1
)
53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Avatar for Allied Generators

Allied Generators

5.00(
13
)

Allied Generators

5.00(
13
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

If you need a generator for home or business, Allied Generators offers turnkey generator installation, generator preventative maintenance, generator troubleshooting/repair, and generator monitoring. We can repair or service nearly any make and model. We also now offer portable generators for rent.

If you need a generator for home or business, Allied Generators offers turnkey generator installation, generator preventative maintenance, generator troubleshooting/repair, and generator monitoring. We can repair or service nearly any make and model. We also now offer portable generators for rent.

Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

In many cases, you’ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.

As long as your generator is used as recommended by the manufacturer, it’s safe to use for auxiliary power. Make sure that fuel powered generators are used outdoors and that the fumes dissipate away from your home. A professional generator installer will ensure your generator’s placement and set-up meets safety standards when installing or repairing your back-up power source.

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.

The Altoona, WI 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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