ProTherm was started in 1984 by Trevor Davies with one simple concept. By looking after the customer’s needs, the customer will look after us. The cornerstone of our success and the growth of the company has always been customer satisfaction.

Every interaction between ProTherm and our customers is supported by integrity, honesty, reliability and trust. It is only when we help our customer to succeed, that we succeed. From the early beginnings of one service vehicle to a fleet of dedicated service, maintenance and installation crews, ProTherm works to provide our services to you when you need them, 24 hours per day, 7 days per week.

Today we have the largest fleet of services vehicles in southern Ontario. With 14 trucks on the road we can respond quickly to your emergency needs. We also provide maintenance programs to keep those emergencies to a minimum.


Standards, Licenses & Registrations

ProTherm Ltd is registered with a number of companies to certify our high-quality services. These regulatory bodies include:

  • Technical Standards and Safety Authority (TSSA)
  • Avetta
  • ISN
  • ContractorCheck


Our highly trained personnel are fully licensed in process combustion installation and service and HVAC installation and service.

  • Fully W.H.I.M.I.S. trained
  • Licensed by the Province of Ontario (TSSA)
  • Licensed Engineering Service on Staff
  • In-house AutoCAD drawings
  • Design/Build Mechanical Services
  • Bonded and Insured