90 Rankin Street, Unit 8
Waterloo, Ontario, N2V 2B3

Learn About Us
Industrial, Commercial and Residential
Quality Suppliers
Learn About Us

Read about our company history, and how we are an active member of the community.

Industrial, Commercial and Residential

We install and maintain your HVAC, heating, cooling and refrigeration equipment.

Quality Suppliers

We utilize the highest quality of products from Honeywell, Wolf Steel, York, Emerson, Carrier, Wolsely, Mckough and more.

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“During these uncertain times, our team at ATN Mechanical is taking all safety precautions possible to protect our staff, clients and our community. We are open for business to ensure that you remain comfortable at work and in your home with properly maintained HVAC & R. Thank you for your business and we look forward to hearing from you!”     - Brad Huehn

ATN Mechanical Systems 20th Anniversary Logo

The staff at ATN Mechanical Systems would like to thank all our customers for supporting us for 20+ wonderful years!

Committed to quality service, earning your loyalty and trust!

At ATN Mechanical Systems, we have over 60 years of experience across our licensed technicians.
Let us be your partner for installation and maintenance, to keep your systems running as promised.
24/7 service to Waterloo, Kitchener, Cambridge, and offering extended warranties!

Worry Free and Reliable at ATN Mechanical Systems

Worry-Free and Reliable

We provide 24 hour service, 7 days a week, 365 days a year. With GPS tracking and call dispatch, we can quickly and efficiently respond to your call.

Easy Financing Options at ATN Mechanical Systems

Easy Financing Options

Ask us about our easy financing options. Having a great system installed and maintained is important, and we can help make financing a breeze!

Quick Response Time at ATN Mechanical Systems

Quick Response Time

We pride ourselves in our quick response time and quality service from our trustworthy staff.

Tips & Tricks Before You Call

  • Check the power supply - are the breakers on?
  • Is the furnace switch on?
  • Batteries in thermostat – are they new? (if required)
  • Is your thermostat set to the system you wish to have operating?
  • Have you changed your filter recently? (we supply filters)
  • Is the condenser fan running outside?
  • Is there air blowing our of your registers/vents?
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