Keeping your home properly heated and cooled is a main concern of any homeowner in a climate as varied as Canada. MJL Heating & Mechanical has provided customers in Oshawa for over 30 years with installation and repair services for you HVAC systems. Our licensed and insured technicians service heaters, air conditioners, fireplaces, boilers, hot water tanks, gas appliances and more. We also service commercial buildings and restaurants. Contact us today to receive a free quote.more...See more text