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Air conditioning & Heating

Our team will assist you in the realization of your project and help you determine which air conditioning and heating solution is optimal for your space, while respecting your needs and your budget.

A fast, courteous and reliable service.

Cleaning and Maintenance

Whether you need to maintain or repair your equipment, our team of experts will visit you promptly so that you can enjoy your facilities in complete comfort.

Make an AppointmentView Our Maintenance Plans

Need Financing?

Your project could be more affordable than you might think with the help of our different financing options
AT Climatisation

Our Services



Our professional installation team ensures the operation, performance and optimal durability of your equipment. We provide prompt service.


Our team of experts can repair your air conditioning and heating systems. We work on most models from the major manufacturers.


Keep your equipment in top condition and optimize its performance by having your units regularly serviced by certified technicians.


Is your equipment outdated? Do you want to change your system for a more efficient option? We can help you determine how to optimize your performance.

Stay Cool!

Each project is unique. Leave us your contact information and we will get back to you quickly to find the best solution for your needs.


    Impeccable service. Forty-eight hours after receiving a quote, the system was installed and working (and performing very well). Thanks to your team of technicians who worked tirelessly in the extreme heat, I am impressed. I recommend this company; they are responsive and dynamic, and they go the extra mile for the customer experience. All this in a difficult context (heat wave + pandemic). If they are this proficient in customer service, they deserve more than 5 stars! Thank you again for your excellent service.

    Fred Boisvert

    Prompt replies and excellent service. We had left messages with several companies and George responded the most quickly. The evaluation, the quote, the scheduling of the installation, everything went well, within the time frame promised, even though the workload was very high. We recommend AT Climatisation.

    Very good service, I called ten locations during the Montréal heat wave and all locations had one-month delays. AT Climatisation took the time out of their busy schedule to install the unit the day after my call! Very happy with the product!

    Marc BrunetMontréal

    From the service call to the moment Houssem, our repairman, left, the service was outstanding! I recommend! 👍🏻

    Gen Bi.Montréal

    From the time I called for information, to the installation, and then to my first attempt at turning on the system alone, everything was perfect. Very well informed, the entire process was quick and simple. Thank you to the entire team, professionals who are also very friendly and attentive—despite my thousands of questions! With my Air Tempo, summer can come, I’m cool!

    Mélia PontetMontréal, QC

    We are extremely happy with the service. Everyone that we dealt with were very professional and knowledgeable. Installation was done in one day. We would highly recommend them.

    Barbara LisMontréal