The 9 Best Solar Panel Installers in Toronto

Toronto Solar Solutions suits homeowners who already have panels and need a repair, a battery or an upgrade. It is run by Santiago Velazquez, a licensed master electrician who focuses on solar PV. Work covers diagnostics and repairs, battery storage, commissioning, design reviews and new installations across Toronto and southern Ontario. As an electrical contractor it also handles EV chargers and 100A to 200A service upgrades, which many battery projects need.

Goldwater Solar suits owners of a pool or an older solar setup, since it works on solar pool heating and solar hot water as well as solar power. The company has installed and serviced systems for residential, commercial and institutional clients across the GTA since 2005. It also takes on systems that have stopped working and need to be brought back into service. Estimates are free and can be prepared without a home visit.

Polaron suits homeowners who want the paperwork taken off their hands. It works as a turnkey provider, covering engineering, municipal permits and the applications for provincial and federal rebates. The head office is in Scarborough, with another location in North York and offices in five other provinces. Residential systems carry a performance warranty of up to 30 years, and an online portal shows the system's daily production.

Go Lime suits homeowners who prefer a monthly payment to a large upfront cost. The North York company, whose main business is heating, cooling and water heaters, sells a 10 kWh Enphase solar package, a 10 kWh Enphase battery and EV chargers, each with a listed price and a monthly plan. Installation is included, and systems carry manufacturer coverage plus the company's ongoing support. A 30-day money-back guarantee applies.

New Dawn Energy Solutions suits homeowners and businesses north of the city who want an installer with both residential and commercial experience. The Markham company has worked in the field for more than 13 years and installs solar panels, battery storage, EV chargers and heat pumps. Its projects range from Toronto homes to a 100 kW commercial system and an off-grid build in Sunderland. Zero-down financing, low-interest loans and lease options are offered.

Terawatt Solar suits homeowners who want a focused rooftop installer that does not subcontract. Operating from Markham since 2016, it installs net-metered rooftop systems, ground mounts and commercial arrays with its own master electrician and ESA-certified crew. Its standard equipment pairs LONGi panels with SolarEdge Home Hub inverters. Installations come with an eight-year warranty, on top of the manufacturers' panel performance warranty.

Green Integrations suits businesses and building owners rather than homeowners. The North York firm has delivered commercial and industrial solar projects since 2012, and its work starts with an energy audit before moving to solar, battery storage, EV charging and LED lighting. It helps clients use incentives such as the Clean Technology Investment Tax Credit and Ontario's Save on Energy load displacement program. Maintenance of existing solar systems is also offered.

Solar X suits homeowners who want one company to handle design, permits, utility connection and the ESA inspection. It is a licensed electrical contractor with in-house certified installers and has operated since 2018. Its standard equipment includes Thornova panels, Fronius inverters and Tesla Powerwall 3 batteries, and it is a certified installer for Sigenergy and FranklinWH storage. EV chargers and commercial systems are also part of its work.

Solify suits homeowners planning a wider energy retrofit rather than solar alone. From its North York office it installs solar panels and battery storage alongside heat pumps, insulation, heat pump water heaters and EV chargers. It is a Tesla certified installer and works with brands such as LONGi, SolarEdge and Thornova. The company coordinates incentives and loans, including Toronto's Home Energy Loan Program and the Canada Greener Homes Loan.