Demand Air Systems Ltd. (Service Division) and Compu-Temp Air Designs Ltd. (Installation Division) have been designing, installing, servicing and maintaining Air Conditioning/Heating Systems since 1978. Our many years of experience have allowed us to service our customers with the expertise necessary to meet their HVAC requirements.

Our fully stocked and equipped 20 plus vehicle fleet is available for 24 hour emergency service, 7 days per week.

Our Company’s foundation has been built on referral business from satisfied customers thru quality service, installation and professionalism provided by our company’s field and office staff.

We presently employ approximately 30 well trained highly skilled and qualified technicians who are ready and willing to service our customers.


  • Woodbridge – (Head Office/Administration)
  • Woodbridge – (Construction Department and Fabrication shop)
  • Markham – (Service Department – East)
  • Mississauga – (Service Department – West)

Our Main Customer base is in Southern Ontario but we are willing to travel outside of this area should the need arise. (In the past we have worked in the West Indies, Edmonton, Kapuskasing, Ottawa, London, Etc.)


Our company was founded in 1978 by two brothers Joe Fiorini and Dominic Fiorini, who themselves are Highly skilled HVAC technicians with 40 plus years of individual experience in this industry. Over many years they have built a competent team of technicians through field and classroom training and retainment of these highly skilled individuals.

Trade Affiliations:

  • ORAC – Ontario Refrigeration and Air Conditioning Contractor Association
  • HRAI – Heating/Refrigeration/Air Conditioning Institute of Canada
  • BOMA – Building Owner Management Association
  • LENNOX – Commercial Alliance Dealer
  • YORK – Commercial Dealer
  • GOODMAN – Commercial dealer