About
Locally owned and operated, National HVAC Services One is your trusted source for professional HVAC installation, repair, and maintenance in Toronto and the greater Ontario region. With over 52 years of experience, our certified technicians handle everything from emergency AC repairs to complete system replacements.
Services
- Thermostat InstallationCAD 161–525 · ESTIMATE
- RefrigerationCAD 300–351 · ESTIMATE
- Energy AuditsCAD 287–743 · ESTIMATE
Brands We Work With
Credentials
- License: LIC-72442-CA Verified
- Insurance: Not verified
- Background check: —
- Employees: 51-100
- Service radius: 27 km
Reviews (8)
- ★★★★★Five stars
After getting quotes from several companies, we went with National HVAC Services One and glad we did. Best price and best service.
- ★★★★★Great service!
Called National HVAC Services One for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★★★Fair pricing
National HVAC Services One diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★☆☆Friendly and efficient
Called National HVAC Services One for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★☆☆Great service!
We have used National HVAC Services One for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.
- ★★★★☆Friendly and efficient
Very happy with the service from National HVAC Services One. They replaced our entire HVAC system and the difference is night and day. Highly recommend.
- ★★★☆☆Five stars
Had National HVAC Services One come out for our annual maintenance. The tech was thorough and explained everything. Good value for the price.
- ★★★☆☆Fair pricing
The team from National HVAC Services One was friendly and efficient. They completed the AC installation ahead of schedule. Very satisfied.