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SUNation Energy
Unclaimed listing4.7 ★
963 reviews · Google
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I'm the owner of SUNation Energy, a solar installation company serving the Ronkonkoma area, and we've built our reputation on straightforward work and reliable service—our 4.7-star Google rating reflects the quality of installations and customer support our team delivers. We focus on helping homeowners understand their solar options and execute projects that actually reduce their energy costs, no sales pitch required.
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AI-analyzed from customer reviewsWhat customers say
AI summary of reviewsSUNation Energy consistently delivers quality solar installations with transparent communication and genuine customer care. Customers praise their knowledgeable team, fair pricing compared to competitors, and reliable support that continues even after the job is done.
Customer Reviews
“Dave LoMonaco is a true professional. He is knowledgeable, personable, and genuinely passionate about solar energy. I first reached out to Dave after seeing so many people recommend him online. At the…”
“SUNation Energy really surpassed my expectations! From beginning to end, Dave and the team at SUNation treated my family with the utmost respect and consideration. Dave took the time to explain so man…”
“The best and most reliable solar company in Long Island for sure. The best prices and deals they have. I got few estimates from other companies and they were charging me 20K and more for trying to ins…”
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Reviews
Caroline Burns
9 months ago
Had my solar installed this weekend 11/29/25. Steve and his team arrived on time and worked so efficiently they were done mid afternoon. Every step was explained to me, a checklist at the end ensured everything was completed. You can barely notice the panels on the back of my home! From the first contact to the final install I was kept informed at every step. I highly recommend SUNation Energy if you are considering solar.
Admir Gutic
a month ago
The best and most reliable solar company in Long Island for sure. The best prices and deals they have. I got few estimates from other companies and they were charging me 20K and more for trying to install 9 less panels and not installing a new roof which Sunation did. Alexa Papa sale representative, Scott the roof supervisor and Victor Higgins the solar installer were the most knowledgeable and professional people out there 🙏🏼🙏🏼🙏🏼🙏🏼 The whole staff that worked on the roof and solar panels were very professional and extremely helpful with giving me all the instructions and explanations of the work that was being done. For the record I got 33 panels and a new roof as I am extremely happy with all the work. Thank you all that work for SUNation company and I am only highly recommending this company 🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼.
Robyn Stimmel
2 months ago
I had an outstanding experience with SUNation Energy from start to finish. Our salesman, Dave, was exceptional. He was knowledgeable, professional, and took the time to explain every step of the process without ever making me feel pressured. He answered all of my questions honestly and made sure I was comfortable with my decision. Dave’s attention to detail, responsiveness, and genuine commitment to customer satisfaction made the entire experience smooth and stress-free. It’s clear that he truly cares about his customers and takes pride in his work. If you’re considering solar, I highly recommend SUNation Energy, and I especially recommend asking for Dave. Thank you for making what could have been a complicated process so easy and enjoyable
Jobin Thomas
a month ago
Dave LoMonaco is a true professional. He is knowledgeable, personable, and genuinely passionate about solar energy. I first reached out to Dave after seeing so many people recommend him online. At the time, I was already working with another SUNation sales representative, but Dave took the time to review my proposal and quickly identified mistakes. He then put together a much better system design that was able to offset approximately 110% of my projected energy usage. From start to finish, Dave was there every step of the way. Even after the installation, he continued to help, including following up while I was waiting for access to the Enphase app. What impressed me most was his responsiveness. No matter how many questions I had, he always replied quickly with clear, honest, and knowledgeable answers. Installing solar is a significant investment, and I spent a lot of time researching before making my decision. It was incredibly reassuring to work with someone who shared my attention to detail and never made me feel rushed or pressured. Dave's expertise, professionalism, and commitment to his customers made the entire experience smooth and stress-free. Thank you, Dave, for all of your help throughout this process. I truly appreciate everything you did, and I highly recommend you to anyone considering going solar with SUNation. Five stars without hesitation!
Lawrence Lacagnino
a year ago
SUNation Energy really surpassed my expectations! From beginning to end, Dave and the team at SUNation treated my family with the utmost respect and consideration. Dave took the time to explain so many things to me as I was just fairly uneducated on solar but knew it was the right move. As a new homeowner, I felt totally reassured and even now if I have a question he doesn’t hesitate to lend info right away. That’s just great customer appreciation and the hallmark of a good company. The work was done expertly, from speaking and meeting with their roofing contractor Jack (who is just an absolute professional and I would consider working with him outside of this process), all the way through the panel install and the subsequent meet to help me understand how everything should work. They even worked with me to help have a tree removed that impeded the coverage on my roof, solving issues to get the job done! The process is pretty seamless, done quickly, and as the customer and homeowner you really have nothing to worry about. The products are warrantied well, and SUNation really stands behind their work. I would, and I already am, referring SUNation for anyone who is looking to get into solar. Working like a charm for us so far!
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