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  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon12
    Verified solar panel services reviews

Verified Reviews for Solar Panel Service pros in Deerfield, WI

*The Angi rating for Solar Panel Service companies in Deerfield, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Solar Panel Service needs.

*The HomeAdvisor rating for Solar Panel Service companies in Deerfield, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Solar Panel Service needs.

Last update on May 26, 2026

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

Avatar for Kegonsa Plumbing
Kegonsa Plumbing
4.9(
14
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Deerfield, WI and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"These were very busy people at the time yet worked me in with in a week. They called before coming over to the house. Luke was prompt, efficient, and professional! He was amazingly fast at his work!"
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+9

1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Tesla, Inc
Tesla, Inc
New to Angi
Solar Panel Install

Serving Deerfield, WI and surrounding areas

Approved (Corporate)

In business since 2015

Free estimates

Warranties offered

Tesla Energy provides an all‑in‑one solar‑plus‑storage solution for your home. Sleek, high‑efficiency solar panels paired with Powerwall help you save on electricity bills and protect your homes from outages. The Tesla app gives you real-time visibility into your energy production, usage and savings—and lets you earn money by supporting the grid through Tesla's Virtual Power Plant. Every system is engineered and installed end‑to‑end by Tesla, delivering a modern aesthetic and the confidence that your home is powered by the most advanced renewable energy ecosystem. With our Price Match Guarantee and exclusive incentives, you can be confident you're getting the best value in home energy.

California Home I
California Home I
California Home I
Texas Home
Texas Home

+3

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Avatar for R&J Solar LLC
R&J Solar LLC
5.0(
2
)
Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Deerfield, WI and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"They are in the process of sending out an engineer"
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+3

Recommended by100%of homeowners
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Avatar for Landmark Services Cooperative
Landmark Services Cooperative
4.8(
66
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Deerfield, WI and surrounding areas

In business since 1931

Free estimates

Emergency services offered

"Salesman knew his product installers efficient. Sales coordinator easy to work with. very happy with service from beginning to end."
Lennox Symmetry 35N
GD70 Starfire Fireplace
Recommended by96%of homeowners
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Avatar for Harker Heating & Cooling
Harker Heating & Cooling
4.6(
213
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Deerfield, WI and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"Furnace was repaired and is working now."
87 W. Beltline Hwy
Carrier Distinguished Dealer Logo
Star of Madison Award
Recommended by89%of homeowners
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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 Deerfield, WI and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"The promo was a good lure. We discovered however that unless we brought up that we had bought this Angie's package, we were charged full price without the upgrades and add-ons. I called the person originally contacted (Julie) when I discovered the oversight. Within a week, I received the $25 visa gift card which was one piece of the package. I don't know if the other pieces will be easily added on/credited or not. Haven't seen anything. The visa gift certificate however requires me to send the partner company $2.95 shipping and handling, with a trip to the bank to get it in money order or cashier's check....really? I'm guessing they're hoping most customers won't bother. 
So all in all, we like the product and the installer was awesome.  Loving the service.
The package through Angie's list however I'm still waiting on to see if we got the freebies we bought.
"
Dish Options
Recommended by74%of homeowners
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Avatar for VM Contracting LLC
VM Contracting LLC
4.6(
16
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Deerfield, WI and surrounding areas

"Bob is extremely knowledgeable about his products and services and understands the customer. He is very responsive and prompt, and while he explains everything in detail he also listens carefully. He is realistic and not high pressure. Thank you Bob!"
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Recommended by92%of homeowners
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Avatar for Atkinson Building & Grounds Maintenance LLC
Atkinson Building & Grounds Maintenance LLC
5.0(
6
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Deerfield, WI and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Very well, forsaw almost any problem that may arise, determined best way to handle and proceeded from there. Very thorough, professional, polite young man with a good number of years in HVAC and genl. maintenance experience in addition to good sound training."
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+24

Recommended by100%of homeowners
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Showing 1-10 of 16
Solar Panels FAQs, answered by experts

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.

While solar panels can be a great investment, they aren’t ideal for every roof. For example, some roofs, especially older or structurally weak ones, may struggle to support the added weight, leading to potential damage. Roofs with complex designs, obstructions, or limited sunlight exposure might not provide optimal conditions for solar energy production. Consider these downsides when determining if solar panel installation costs are worth it.

Learn about common solar blockers in your area to determine how often you should wash solar panels and the best cleaning method:

  • Soot: If you have a fireplace, soot can disperse and accumulate on the solar panels.

  • Debris, dirt, and leaves: These natural elements require light cleaning. Being close to trees or living in a desert area can cause more of these to accumulate.

  • Pollen: Areas with a high pollen count require more frequent solar panel cleaning, and sticky plant material requires a deeper cleaning.

  • Bird droppings: Bird droppings are binding and more difficult to remove. Keep this in mind if you live near a lot of surrounding trees. 

In most cases, yes, solar panels are well worth the investment. Going solar with your home’s energy is expensive, but, in most states, the panels will pay for themselves by reducing your electric bills. Solar panels don’t produce greenhouse gasses or other pollutants, meaning you can feel good about using this renewable energy source to power your home. Plus, installing solar panels can boost your home value, helping your profit off your next home sale.

Yes, solar panel installation will require permits. The required permits will depend on where you live, as some states and cities have solar-specific permits, while others only require electrical permits to connect to the grid. In either case, it’s best to hire a reputable solar installer in your area, as a representative should handle all of the necessary permitting for you and will include the cost of the permits in your initial solar estimate.

The Deerfield, WI homeowners’ guide to solar panel services

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

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