Terawatt Solar

Terawatt Solar has performed promptly and professionally whenever called upon for maintenance work. It is reassuring that the owner is always hands on at all installations and is a Master Electrician.

Terawatt Solar installed our 10kw system 2 years ago. They did prompt and very professional job. The system was working since the beginning as like the first day.All components and the installation it was high top quality for a fair price. I always recommend them to anybody in need.

After quoting three companies, Terawatt presented not only the best economical solution, but the best brands and high-tech Canadian equipment. If you wanna go solar, go Terawatt. They are the best! My PV system was installed with no issues and is working awesomely! These guys you can trust! Thank you for your business.

We had our solar panels installed in June 2020. The entire process, from preparing a detailed quote, answering questions, completing paperwork to installation was done professionally and in coherence with the the Covid-19 restrictions at the time.The installer, Cosmin, was a pleasure to work with. He answered any questions I had and effectively dealt with a shadow issue with a chimney shortly after installation. I am confident that should there be any issues that arise that Terawatt will be there to back up their product and installation.Finally, in terms of electricity generation and cost offset, everything seems to be 'paying-off' as predicted, if not better. I continue to be satisfied with the work done by Terawatt and highly recommend them for full service residential solar panel installation. Paul W, Oshawa

All positive. 30 panel installation process neat and unobtrusive. Inspectors commented it was professional and they were pleased to sign off. Five months going now. Every day positive generation/usage but haven't seen the final numbers yet. Snow slides off to clear the panels.

Terawatt Solar installed my total Solar system at the end of 2017, as part of the Micro-fit program. Their services were excellent and workmanship was beyond reproach. They treated me with respect and answered all questions adequately. They were efficient, professional, and the work portrayed absolute quality. I recently experienced a glitch in my system and they immediately responded by phone with a physical followup and trouble shooting soon after. They again resolved my issue in the same manner as before. Thank you for your excellent customer Service. I can recommend TeraWatt Solar to anyone with confidence.

Cosmin and his team did a fantastic job installing the Solar system. Cosmin did a great job of keeping me in the loop and managing the process required to get all the approvals needed to everything installed and commissioned.

Very positive experience, highly recommended!We got our system installed May 2020 and was very impressed by the professionalism and detail of the quote which Terawatt took responsibility from top to bottom.Cosmin did the installation of our system. His workmanship was excellent. Very clean and neat as per the detailed quote and Cosmin was very patience answering all my additional questions.Best thing is that the quote with the projected power output has been almost as they projected. So far the system has covered all our power needs but as projected we will probably need some power from the grid (Winter in Canada).Very happy that we made the investment.Jim

Have had my system installed for 6 months now, and though production vs. estimate should only really be judged after a couple of years, so far so good. It was great working with John and Cosmin, they were always willing to answer my many questions. Overall process took a little longer than anticipated, but with Covid, supply chain and finding worker issues, that really should be expected.Provided information and installation were excellently done, and have had no issues so far. I feel secure in dealing with a company that has been around so long, and not one of the many fly-by-night companies that seem to be knocking on doors recently.Keep up the good work guys.

Highly recommended. I had a great experience from start to finish. As others have mentioned the key is working with an owner who has a vested interest in a quality install and a satisfied customer. Cosmin controls the entire process to ensure everything is done right. He’s also a very nice person going out of his way to help with the install and permit for my Tesla charger. Don’t waste your time looking elsewhere.