Trusted Toronto Home Comfort Experts for Over 25 Years

For more than two decades, Sunnyside has been helping East York and Toronto homeowners stay comfortable, safe, and confident in their homes. From the beginning, our mission has been simple: deliver honest advice, high-quality workmanship, and a level of service that feels personal - because it is.

What started more than 25 years ago with one truck and a commitment to doing things the right way has grown into a trusted full-service heating, air conditioning and electrical company serving communities across the GTA.

While hardware, technology, and building codes have evolved, our values haven’t. We believe in:

Owner of Sunnyside Heating and Cooling Ersi

Our story.

Clear and transparent pricing.

Showing up when we say we will.

Providing options, not pressure.

Staying up to date on emerging technologies.

Treating every home like it is our own.

Most of all, we believe in earning trust, job after job, year after year.

What we do.

We provide complete home comfort services, including:

Installation, repairs, and maintenance for furnaces, boilers, heat pumps, SpacePak systems, and specialty heating setups - with deep experience in older Toronto homes.

Heating

Cooling

AC installations and repairs, SpacePak high-velocity systems, ductless cooling, and annual tune-ups.

High-efficiency ducted and ductless solutions designed for Toronto homes and climate.

Heat Pumps

Tankless water heaters, filtration and purification systems, humidifiers, air cleaners, and whole-home air solutions.

Water + Air Systems

Panel upgrades, replacements, safety inspections, and Level 2 EV charger installations.

Electrical + EV Chargers

Maintenance Packages

Seasonal and annual plans to keep your systems efficient, reliable, and protected.

CALL 416.573.7212 TO LEAN MORE

What makes Sunnyside different?

Owner- Led Expertise

You’ll work directly with experienced professionals who care about doing the job right, not salespeople driven by commission.

Licensed, Trained, Trusted Technicians

Our team is certified, background-checked, and continually trained on new technologies and safety standards.

Transparent Pricing + Honest Advice

We explain the “why” behind our recommendations and talk openly about budget, efficiency, and long-term value.

24-Hour Emergency Support

Heating and water problems don’t wait for business hours. We’re here when you need us.

Experience with Toronto Homes

From tight mechanical rooms to century-old radiators to third-floor attic AC, we’ve seen it all, and we know how to work with the challenges of local homes.

Reliable, Quality Work

We stand behind every installation and repair. Our work is backed by strong warranties and long-term support.

Proudly Serving East York + the Greater Toronto Area.

We’re proud of the reputation we’ve built - not just through reviews or long-term clients, but through the relationships we’ve developed in the communities we serve. When you call Sunnyside, you’re choosing a local expert who understands Toronto homes and treats every customer with respect.

Whether you need a repair, a system upgrade, or simply honest advice about your home’s comfort, we’re here to help.

Get in touch

"Needed my old furnace diagnosed and repaired. Called and within the day was able to get a technician to my house to fix my issue. Noah was speedy and knowledgeable. Provided foreseeable repairs and even no pressure options for a replacement.”

Sunnyside maintenance truck with the Sunnyside logo on the side

Contact us

Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!

Book a free consultation today.

416-573-7212 | info@sunnysideHVAC.ca‬