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Reviews for Marks Comfort Tech

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  • January 2026

    I have used this company multiple times over 15 years and they have always served me well. If you need help with your furnace or hot water tank in this wild weather I highly recommend Marks' Comfort Tech. Fast, friendly and efficient and you are supporting a local company that gives back to the community.

  • January 2026

    Marks Comfort Tech has looked after our family’s heating and cooling systems for years now. They are very professional and honest which isn’t always the case in the service industry. I have referred many people as well and they have all told me they were very happy. Keep up the great work and thank you

  • October 2025

    Today I had Maintenance scheduled for my furnace, A/C and hot water heater. The Tech was Mark and I was very satisfied with his demeanour and knowledge. He informed me my hot water heater was 16 years old and since it was in close proximity to my furnace I should consider getting a quote to replace. I was thankful for his suggestion as I had no idea of the age of the heater. I have scheduled to have it replaced before problems arise…. Thanks Mark

  • Marks Comfort Tech

    1918 Confederation Line, Sarnia

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