4.4 
22 *The Angi rating for Solar Panel Service companies in Windham, NH 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 Windham, NH 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 20, 2026
Serving Windham, NH and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"They were efficient, friendly, and cost effective."
+55
Serving Windham, NH and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"I spoke with the owner George on the phone about possibly only an install of solar panels not buying product through his company. He spent the time to explain the process and concerns he could see with my plan. Based on his willingness to spend ample time explaining the process I ended up using his company for the complete project. I am more than satisfied with the end result. The company did not sell me unneeded equipment and kept me informed throughout the whole process. They completed all the necessary paperwork for the state which included the $1000 rebate from the state of New Hampshire. Quality workmanship and great customer service. I would absolutely recommend this company for any person considering going solar!"
+13
Serving Windham, NH and surrounding areas
Approved
In business since 1992
Warranties offered
Customers say: Quick response
"Arrived with the solar company re-installer and worked efficiently, professionally and courteously and did an excellent job!"
Serving Windham, NH and surrounding areas
Approved
In business since 2007
Emergency services offered
Credit card accepted
"He was very observant of all the permissions needed for a gas water heater. I definitely would recommend them to anybody easy to talk to and great work."
Serving Windham, NH 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.
+3
Serving Windham, NH and surrounding areas
In business since 2023
Free estimates
Credit card accepted
"Everything was very smooth and easy to understand! The pros of going solar were made completely clear during the sales proceeds and installation was done swiftly. Lots of people in Raleigh NC taking advantage of this long term energy solution."
+5
Serving Windham, NH and surrounding areas
In business since 2022
Free estimates
Emergency services offered
"A family of raccoons took up residence under our solar panels and caused significant damage to our roof. I initially tried to arrange a solar panel inspection with the company that installed them for us, but felt like I was being given the runaround when it came to quoting and scheduling the work, so I gave up and decided to take a flier on Green Sun Energy, and I'm glad I did - they quoted the work, we booked an appointment a few days later, then they did (as best as I can tell) a thorough inspection of the system. I intend to hire GSE again for related mitigation work later this summer and would highly recommend them to others who may require their services."
+9
Serving Windham, NH and surrounding areas
In business since 1993
Free estimates
Credit card accepted
"Prompt service at good price...friendly as well..."
+15
Serving Windham, NH and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Professional, responsive, and efficient. Sunup Solar designed and installed our off-grid system during late winter and fit into our time crunch to move into our new home. We are ecstatic to show photos and tell others how an off-grid lifestyle can be modern, and in our case, even within sight of on-grid neighbors. During the hottest days we run AC without worrying about a power bill, and when a summer storm hits our lights never go out. Our home has become an example for countless family and friends to consider building off-grid, and we continue to recommend Sunup Solar to folks across New England. Thank you Hunter and your team for powering our dream home."
+18
Serving Windham, NH and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"It went great. They were professional and on time."
+2
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