About
Engineers of everyday comfort in Toronto
Northline is a Toronto heating and cooling company built on clear answers, fair prices and work that lasts.
The short version
Northline started in 2008 with one van and a simple promise: tell homeowners the truth about their system, then fix it properly.
Today our team of licensed technicians looks after thousands of homes across the GTA. We still answer the phone ourselves, and we still give you the price before we start.

- 18Years in business
- 12,400+Jobs completed
- 26Licensed technicians
- 60 minAverage emergency response
How we run things
- 01
Straight answers
We explain what's wrong in plain language and never push equipment you don't need.
- 02
Upfront pricing
You approve a written price before any work begins. No surprises on the bill.
- 03
Work that lasts
Installs are done to code, tested in front of you and backed by our labour warranty.
Skip the phone tag.
Book online in a few taps, or call and a dispatcher (a real one) picks up.