Climate change is hitting home, and keeping up with soaring electricity bills in Ontario can feel daunting. Shifting to clean energy is a powerful way to take control of your utility costs, especially with regional incentives waiting to be claimed. 

But the search for a reliable team to upgrade your roof can feel overwhelming with so many options out there. That’s why we did the legwork to find the best solar panel installers in Toronto to help you transition smoothly and lock in predictable energy costs. 

Before beginning, consulting local electricians and specialized roofers ensures your home structure and wiring are fully optimized for a clean energy transition. 

1. Polaron Energy Corp.

Website: https://polaronsolar.com/

Address: 3761 Victoria Park Ave. Unit 9, Scarborough

Contact: +1 (888) 318-1988

Hours: Monday to Friday, 9:30 AM – 5:00 PM

Investing in clean energy often comes with a steep upfront price tag that deters everyday homeowners. 

Polaron Energy Corp. directly solves this hurdle by providing an exclusive, in-house zero-percent financing setup that makes switching to clean energy immediately accessible. 

I love that they manage everything from initial engineering permits down to sorting out your provincial rebates. Plus, their custom battery manufacturing setup ensures your home setup is fully integrated and optimized for maximum grid independence. 

When a close friend used them recently, they mentioned how seamless the entire system setup felt from day one. You can even monitor your daily energy generation in real-time using their secure online dashboard. 

Just keep an eye on potential wildlife issues, as local squirrels might try to nest underneath your new roof modules if you don’t opt for specialized mesh guards.

Fantastic from start to finish

6.6kW of Solar installed – looking forward to smaller utility bills.  Polaron was fantastic from start to finish.  Able to reach out and ask questions at every step.  Would recommend if you are thinking about lowering your carbon footprint.

Martin Duckworth | Google Review 

Professional service at every step

The folks at Polaron Solar have been amazing to work with. I have had upgraded equipment for heating cooling as well as going through the Solar installation process and have been impressed with the transparent straightforward professional service at every step.

Tim Barton | Google Review  

2. Toronto Solar Solutions

Website: https://torontosolarsolutions.com/ 

Address: 57 Yarrow Rd. York. 

Contact: 416-402-1941

Hours: Monday to Friday, 9:00 AM – 5:00 PM

Dealing with an underperforming array or a sudden system fault can disrupt your entire clean energy investment. 

Toronto Solar Solutions stands out because they focus heavily on high-level electrical troubleshooting, diagnostics, and optimization of existing solar systems rather than just standard setups. 

Led by Santiago Velazquez, a licensed master electrician, their team ensures everything remains fully compliant with the Electrical Safety Authority (ESA) guidelines.

They provide custom electrification upgrades across the region, including electric vehicle charging ports and full 200-amp service panel modernizations. 

And I love that their technicians possess specialized expertise across major inverter brands like SolarEdge and Enphase to correct improper layouts left incomplete by previous contractors. 

However, because they focus so intensely on complex repairs and restorative maintenance, they might not be the most straightforward fit if you’re strictly seeking basic, first-time residential installations.

Made my journey through installing solar panels so much easier 

The customer service this company provides  is well above average. Extremely clean and efficient work!  Extremely professional quality.  They made my journey through installing solar panels so much easier. They arranged everything. They always arrived on time and ready to work. They never broke their schedule even one time. I don’t know what I would have done without Santy and his crew. I’d give them 6 ⭐️ if I could.

Peter McCarthy  | Google Review 

Explained how the panels and wiring are set up in detail

I had half of my solar panel array disconnected and not generating power. The company that installed them doesn’t exist anymore. I called Toronto Solar Solutions and Santiago came out even sooner than scheduled to check the system (even in the rain).  He explained how the panels and wiring are set up in detail and where the problem is.  I’m definitely making Toronto Solar Solutions my new solar panel technician. Thanks, Santiago!

Len Marshall (Quiet City Design)  | Google Review 

 explained how the panels and wiring are set up in detail 

3. Solar X

Website: https://solar-x.ca/

Address: 955 Bay St. Suite 2307

Contact: +1 (833) 376-5279

Hours: Monday to Friday, 9:00 AM – 8:00 PM

Maximizing winter energy output is a major priority given our heavy Greater Toronto Area snowstorms. Solar X uses advanced bifacial solar modules that capture light bouncing off the snow, which keeps your winter production surprisingly high. 

During your consultation, they provide detailed 3D system models and realistic return on investment calculations.

Then, they take care of the heavy administrative lift, coordinating building permits and working closely with local authorities to secure official safety approvals. 

However, some property owners have noted that the physical installation timeline took longer than originally planned. 

A few clients also experienced temporary equipment performance drops that required technical troubleshooting and multiple inverter replacements.

Communicated very well, worked to timelines 

Solar X installed an 18KW solar system on my roof (residential) in December 2024.  They were great to work with from concept, design and pricing all the way through project implementation.  They managed all the permits with the City,  hydro company and electric/ESA and the installation was pretty easy on us as it was all outside the house.

David and his crew communicated very well, worked to timelines and were very considerate all around.

Overall I have no complaints or issues with this experience and would definitely refer them to others looking to embark on their solar journey.

Asim Hussain | Google Review 

It has been running non-stop since

Solar X installed my system one and a half years ago, and it has been running non-stop since.  My heating system is a central heat pump, and my vehicle is electric, but my electric bill is only about $35 per month (grid connection and account fees).  I recommend anyone looking at solar to consider Solar X as their provider.

Berndt Weber | Google Review 

4. Terawatt Solar

Website: https://www.terawattsolar.ca/

Address: 7030 Woodbine Ave #500, Markham

Contact: (877) 648-3323

Hours: Monday to Friday, 8:00 AM – 5:00 PM

Many folks worry about subcontracted laborers doing a rushed job on their roofs. Terawatt Solar avoids this completely by keeping everything entirely in-house, utilizing their own dedicated team and certified experts to complete your setup safely. 

They kick off your project with an in-depth utility audit spanning twelve months to design an array that perfectly fits your exact lifestyle. They also walk you through the entire regional incentive application so you don’t miss out on cash back.

When I reviewed their detailed net metering proposals, I appreciated how clearly they laid out the financial paths to maximize your savings. 

Just be prepared to navigate a slightly slow contact verification process during the initial pre-sales stage before getting your formal proposal.

Get all the approvals needed to everything installed and commissioned

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

Jason Thang | Google Review 

Did an excellent job installing my solar panels and invertor

Dima (or Dmitry) from Terawatt Solar did an excellent job installing my solar panels and invertor. The quality of his work was outstanding, with exceptional cable organization and a neatly set-up system. He also explained everything clearly, making the process easy to understand.

Highly professional and detail-oriented, I highly recommend him!

Dmitrii Serbin | Google Review 

5. Goldwater Solar Services Ltd

Website: https://www.goldwatersolar.com/

Address: 716-231 Fort York Blvd.

Contact: 416.400.4747

Hours: Monday to Friday, 8:00 AM – 8:00 PM

If you’re hoping to achieve a completely net-zero home setup, local expertise makes a world of difference. 

Goldwater Solar Services Ltd has been working throughout the region since 2005 under the guidance of founder Aaron Goldwater. He’s a seasoned clean energy specialist who was among the first certified solar thermal installers. 

I like that his company provides true turn-key design services and handles all the tricky permitting work on your behalf.

They also offer a rare specialty in solar pool heating alongside standard photovoltaic (PV) electrical systems. 

Plus, you can easily secure a free estimate from the comfort of your living room without scheduling an initial home visit. 

However, if your main goal is an incredibly advanced, heavy-duty electrical grid backed by massive battery banks, a larger corporation might fit your needs better.

Knowledgeable, honest, and reliable

I can’t say enough good about Aaron and his team at Goldwater Solar Services. We’ve had such a positive experience! They installed our panels about six years ago and we recently had them back to help us move them while our roof was being redone. At every interaction, we’ve found Aaron and his team to be knowledgeable, honest, and reliable. Getting solar was a great decision. So was trusting Goldwater Solar Services to do the work.

Carla Temp | Google Review 

Finished their job in a proper and efficient manner

I had a stressless day having the crew come over and help me with my solar panels. They were on time and finished their job in a proper and efficient manner. They will definitely be on my speed dial list when I need them again.

Mark Ignjatovic | Google Review