*The Angi rating for Solar Panel Service companies in Grantham, 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 Grantham, 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 January 30, 2026
Serving Grantham, NH and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"Solar system has been operational for almost a year, no problems at all. Production is aligning well with the projections upon which we made the purchase decision."
+55
Serving Grantham, NH and surrounding areas
Approved (Corporate)
In business since 2015
Free estimates
Warranties offered
"They answered all my questions honestly they were straight forward and honest thru the whole process."
Serving Grantham, NH and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"They were fantastic, would use them again."
+11
Serving Grantham, 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 Grantham, NH and surrounding areas
In business since 1993
Free estimates
Credit card accepted
"Completed Job Per estimate, with decent quality in a timely manner."
+15
Serving Grantham, NH and surrounding areas
In business since 2020
Free estimates
Credit card accepted
Transitioning to solar energy might seem like a daunting task, but with Sunup Solar, we've got you covered from start to finish. Our in-house team handles every step of the process, ensuring a smooth experience when setting up rooftop or ground-mounted solar panels.
+38
Serving Grantham, NH and surrounding areas
In business since 2022
Free estimates
Credit card accepted
"Danielle bent over backwards to assist us! I wouldn’t hesitate to contact them for other projects!"
+3
Serving Grantham, NH and surrounding areas
In business since 2019
Free estimates
Credit card accepted
"Was great. Roof was replaced in one day and panels were installed a few days later and it only took several hours. The roof crew and panel crew were both professional and respectful. Garfield was a great person to deal with when we decided to go Solar. He let us know when things would take place and always accommodated us as well. We are excited to get them going. Oh, and they look great too."
+23
Serving Grantham, NH and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"The repairs done by Lake Sunapee went very well and a professinal service provided; we have no complaints for this company."
Serving Grantham, NH and surrounding areas
In business since 1990
Free estimates
Credit card accepted
"They have been great. It been going good for me. I been wit them for a while."
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