603 Solar

We can't say enough about the work of 603 Solar and the way they partnered in every aspect of the process for our home in Durham, NH. Zach called right away after our initial inquiry and within days we were in process to have panels installed on our barn. Zach and Sean communicated well at every turn, and they worked with the local inspectors and even with Eversource to arrange a transformer upgrade on the pole that services out house. Installation happened in the blink of an eye, and they even recommended a great electrician (Grover Electric) to do some additional work at our house. We've been up and running for about six weeks now and we appreciate the many ways 603 Solar made it happen.

I was very happy with the service I received with 603 Solar. Every response was clear, efficient and informative. The prep, installation and post installation approval process went smoothly and quickly. Thank you, The Sanders family

Jeff Cantara and 603 installed Enphase inverters and Q Cell 425 watt panels for me. Excellent, painless, reasonable price. John

603 Solar has been great. Our "salesman" Jeff was very informative and honest. He actually talked us out of spending additional money on "add-ons" that a previous solar company pushed us to do. Jeff also made several revisions to our design at our request so we could get things "just right". 603 kept us informed throughout the entire process, their installers showed up when they said they would and didn't leave any mess/debris behind when they were finished. The entire process from our initial meeting with Jeff to when we were able to "turn on" our new net meter took less than 2 months.. and part of that time was waiting for permits and the utility company.

I was very happy working with Jeff Cantera at 603 Solar. He has a vast amount of knowledge and loves what he does. He can be very technical but also answers basic questions. We had very pushy solar company put in connection application before we had all our questions answered. Jeff and 603 solar to the rescue. Jeff answered our questions and helped us navigate the process with town and Eversource. 603 even helped us remove the other connection application. Very good experience with Jeff and everyone at 603 solar.

Working with 603 Solar and, in particular, Jeff Cantara was so easy and straight forward. After not having our messages returned by other local solar companies we found 603 Solar and we are glad we did. Our initial phone call was answered and Jeff Cantera was assigned as our project lead. Jeff came to our home and walked us through the process and put our project on a schedule that exceeded our expectations. From our initial contact in October, 2023, to a 100% completion in early February, 2024, our array is up and running and we appreciate the consistent attention we recieved and we are delighted with the results! Thank you, Jeff Cantara and 603 Solar!