• Your Single Source for Steam & Hydronic Equipment
  • Serving you with nearly 30 years of industry expertise.
  • Call (905) 361-0270 for info, quotations and orders.
  • Contact Us

  • Save time getting the parts you need by letting Keystone do the leg work for you. Our talented team will take the information you provide and deliver exactly what you are looking for.

    Thank you for choosing to contact Keystone Steam Supplies for your steam and hydronic equipment needs.

    Note on International Orders: For orders originating from outside Canada and the United States, customers must provide their courier account or arrange for their own shipping otherwise.

    Contact us by phone:

    Telephone: (905) 361-0270 (Toronto/Mississauga Area)
    1-800-665-2481 (Canada-Wide)
    Fax: (416) 900-0905

    Or by email:

    For quotations: quotations@keysteam.ca
    For product information: sales@keysteam.ca
    For account information: admin@keysteam.ca

    Or by direct mail:

    Keystone Steam Supplies
    5250 Satellite Drive, Unit 8
    Mississauga, Ontario L4W 5G5

    Official hours of operation:

    8:30 AM - 5:00 PM - Monday through Friday

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  • Ron Holowka, P. Eng.

    Company Owner

    Ron Holowka started Keystone Steam Supplies in 1988 and has grown the company substantially since then. He is a leading expert in the Canadian steam and hydronic industry. Ron has made Keystone a success over the years by always putting his customer's needs first. He is always honest, available and helps whoever contacts us by giving them the best possible solutions to their inquiries. When no standard solution is available, Ron always goes out of his way to provide an alternative. Ron is here to help you with all your steam and hydronic needs.

  • Jonathan Holowka

    Area of responsibility: Marketing & Sales

    Jonathan has been with Keystone since 2014 and is the son of the company owner and founder, Ron Holowka. He is knowledgeable about steam traps and is increasing his knowledge of the steam and hydronics heating industry, one day at a time. He is also the company webmaster. Jonathan is here to assist you with your purchasing inquiries, as well as issues relating to your company account.

    LinkedIn  Twitter

  • Michael Lockhart

    Area of responsibility: Sales & account management

    Michael Lockhart has been with Keystone since 2014 and has quickly gained an in-depth understanding of all things relating to steam and hydronic heating. He has a friendly demenaour and is always willing to go the extra mile in order to ensure that our customers get everything they're looking for. In fact, Mike is our local in-house detective, doing whatever it takes to ensure our customers get the parts they need. Mike is here to help you with all of your product inquiries.