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Top-Rated Solar panel pros in Mankato - Updated Nov 2026

Avatar for Dish Network Retailer Satellite Country
Dish Network Retailer Satellite Country
4.0(
283
)
Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Mankato, MN and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"I was very impressed with the installer who was sent. He mounted the dish without drilling through my new roof, which might have voided my roof warranty, Also, he mounted the dish in a location where it is easy for me to brush the snow off it in winter. I appreciate his knowledge and thoughtfulness. Also, they didn't charge me to re-install the dish."
Dish Options
Recommended by74%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Mankato, MN and surrounding areas

In business since 1971

Credit card accepted

"The last was a rental company that we have and we used them for an air conditioning and heating system. It was Bototach Mechanical. It’s been a good program for us. They’re very responsive. I don’t know what the thought process was. My husband said, well let’s try these guys and so we did. We have an older home and it’s proved to be a very good deal. The quality has been pretty good, so I would give them an A for the quality. I will give you one helpful hint though. If the company decides they want to replace an appliance, you need to call them and negotiate with them because you can upgrade, but you need to talk to them in person not just do it over the internet."
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+2

Recommended by65%of homeowners
Milner Mechanical & Construction
New to Angi
Solar Water Heater System - Install

Serving Mankato, MN and surrounding areas

In business since 1991

Milner Mechanical is a locally owned company that prides itself on providing prompt, quality work in a professional manner. Our quality is a testament to the level of service and results you'll get when you choose us for your needs. With 100% of our business coming from customer referrals, we would love the opportunity to be of service to you. We are excited that you have expressed an interest in our company and we look forward to working with you. Call us today for a free estimate!

Solar Panels FAQs, answered by experts

Yes, it is possible to install solar panels on a tar and gravel roof, but it is not the ideal roofing material for a solar installation. The process requires roof penetrations to install the solar racking system. While installers will seal these penetrations, they still increase the risk of leaks. This risk is higher on tar and gravel roofs, which are often flat. Flat roofs are more prone to leaks than sloped roofs because they can pool water during heavy rain and hold snow for longer periods, exposing the roof to more moisture.

The time it takes to install solar panels depends on the number of panels and the size of your home, but installation takes between two and three days of work. While most contractors can install the panels over the course of a couple of days, switching to solar energy can take two to three months in total. This includes the time it takes to design the system, procure the parts, obtain the permits, install the panels, connect to the main power grid, and get an inspection.

The average homeowner needs around 22 solar panels, but the exact number depends on your monthly energy consumption. Your solar professional should size your array to offset your consumption, meaning you’ll need fewer panels if you use below-average amounts of electricity, or more than 22 if you use above-average amounts of electricity. The number of panels also depends on the output of each panel. The average is around 400 watts, but you might need more panels if you install less capable equipment. Since there are so many variables, you should have a professional size your system.

Solar panels should get at least four to six hours of direct sunlight daily. It’s even better if sunlight reaches panels between the peak hours of 10 a.m. and 3 p.m. This is enough to power a home, depending on your solar system’s size and energy needs. Remember that panels will generate some power under cloudy skies or in the shade, and many systems compensate for lower sun exposure by drawing energy from the grid or battery storage.

No, you cannot turn on a new solar system before inspection. The inspector checks that the system is correctly connected to the grid and that safety components and features are in place. This process prevents problems on the electrical grid and offers protection against fire in your home. 

Your local utility company may also require inspection documentation before you can connect to the grid. An inspection can ensure solar power efficiency and determine how you might increase it.

The Mankato, MN homeowners’ guide to solar panel services

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