about Unionville Heating


nionville Heating was established in 1985 and is a privately owned and operated company.

Serving the residential market only, and exclusively to the Markham, Unionville & Stouffville areas, for over 34 years, has enabled our staff to focus in on every detail when our technicians are installing or servicing the system in your home. We have created a standard of excellence – second to none – supported by a referral list of customers happy to do business with a local company.

Most consumers prefer doing business with a company they can trust, one that offers stability and a proven track record of providing quality products and exceptional service. They know the benefits of experience and knowledge they want it done right the first time!

Unionville Heating is also the proud recipient of the Readers Choice Award for Best Business for 18 years.

Unionville Heating Best Business Award 18yrs

Charitable Support

Care and Share, Value Village and Habitat for Humanity, Markham Stouffville Hospital, Markham Shriners.

Customer Satisfaction

We value your feedback.  Each of our customers is asked to provide feedback after service or installation of a furnace or air conditioning unit.  Here are the results.

Overall, how satisfied or dissatisfied are you with our company?

Very Satisfied 95.5%
Customer Satisfaction

Meet Our Staff

All our service staff are all licensed, bonded and insured.  Every member of the team carries valid ID.

  • Tyler
    Tyler Installation and Service Technician

    Call: 905-479-1290

  • Dillon LeBlanc
    Dillon LeBlanc Installation and Service Technician

    Call: 905-479-1290

  • Chantalle St Germain
    Chantalle St Germain Office Administrator

    Call: 905-479-1290

  • John St Germain
    John St Germain President

    Call or Text: 416-990-1535

  • Lisa St Germain
    Lisa St Germain Public Relations

    Call: 905-479-1290

  • Todd Nesbitt
    Todd Nesbitt Installation and Service Technician

    Call: 905-479-1290

  • Ryan Thom
    Ryan Thom Crew Captain and Chief of Installations

    Call: 905-479-1290

  • Michele Adams
    Michele Adams Office Administrator

    Call: 905-479-1290

  • Dave Mainland
    Dave Mainland Chief Operations Manager

    Call: 905-479-1290

  • Eric Ranchigoda
    Eric Ranchigoda Service Manager - Markham Pickering Unionville

    Call: 905-479-1290

HVAC Service? Call:905-479-1290