Kajk Constructors Inc I Solar Energy & Green Retrofits Contractor - Ottawa, Ontario

Andy LeValliant

I hired Kajk Construction to design and install a hybrid solar system on my house. Their attention to detail and workmanship were outstanding. Having used the system for almost a year my hydro bills are basically nothing and soon I will be profiting from the money Hydro pays for having the system on the roof. The crew and owner are a pleasure to work with. If I ever move I will only consider Kajk for solar on my next house.

Caroline Leger

We are thrilled with the installation of our 9kw solar system! Kajk’s team was always there to guide us through the entire project.
We also really love the look of the black panels on the roof ?
Top notch!!! Highly recommend ?

Thecla K Alexis

I cannot recommend Kajk Constructors enough. They were so helpful in our understanding of the solar system. They took whatever time was needed to explain. They answered every possible question. They were professional when they came to the house. The system is now completed and operational. The whole experience was pleasant. You won’t regret using Khaled and his team. We sure don’t!

Anthony Agostino

I've had an exceptional experience with Khaled and his team at Kajk. I had a 14kw system installed with a battery backup and car charger. The installation went smooth, everything was done on time and with high quality, and I was well informed and prepared for everything during the process.

I've had exceptional support over the year since it's been installed including ongoing troubleshooting and a battery replacement.

I highly recommend Kajk for your home solar needs.

Crystal Dillon-Sachse

Kahled and his crew did an outstanding job with our solar install in June 2023. Every step of the process was thoroughly explained and the installation was seamless. We are so happy with our system, we love checking the app to see how much electricity we’ve produced each day. Between our solar system and heat pump we are definitely the most energy efficient home in the neighborhood - and our utility bills are MUCH lower! ? Thank you KJAK Constructors.

tom dafoe

We had KAJK Constructors install a modest (9.1 kwh) system in late 2022. The experience working with Khaled and his crew from planning to completion was positive in all respects. During the run-up to the installation there was the "derecho" - remember that? The event prompted us to install a battery backup as well for insurance against long-lived power outages. The whole system has operated seamlessly and has effectively reduced our power costs to zero even with the purchase of an EV last year. The car is now "solar powered"! I would recommend KAJK for a solar installation. Should you care to discuss my experience directly kindly ask Khaled for my coordinates.

Andrew Dunham

We used Kajk Constructors to install about 12.5kW of solar on the roof of our house in Ottawa, and we were *extremely* satisfied. Khaled and team were professional, very communicative throughout the process, and installed a system that met all of my and my wife's requirements (for example: my wife requested no panels on the front of the house so they weren't visible from the street).

When the Hydro Ottawa strike occurred and delayed the project (through no fault of Kajk), the team was in constant communication and ensured that I knew exactly what was going on. Once the strike was resolved, the installation was completed promptly without any delay. It's the mark of a truly professional outfit that when things outside of their control went wrong, they handled it with grace.

I would use them again in a heartbeat, and I would recommend them without reservation to anyone looking for a solar or battery installation. It's March 8th as I write this, and I've already had a few days this year where all of my daily electricity bill has been 100% offset by solar; looking forward to many more sunny days!

Chris Hodgins

After interviewing several contractors, we opted to have our project completed by Kajk. Khaled and his team spent the most time properly reviewing and explaining the system and made sure that all our questions. We ended up having 28 panels installed as well as the battery backup. They provided very good guidance, support and patience dealing with the grants as well as any post-install questions. The install was done on time, very efficiently, and we are very happy with the final result. The follow-ups and optimization after the fact have been great, with Jacob reaching out seasonally to make adjustments to the battery storage amounts and any other settings.