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Heating & Cooling Sales and Service in Sarnia-Lambton

Call Marks Comfort Tech to bring the comfort back to your home at a competitive price. Whether we’re performing furnace repair or air conditioning repair, we work hard to keep Sarnia-Lambton comfortable! Contact us now to get answers to all your questions about repair or claim your free estimate on a cool new device with the hottest features.

We provide service to all of Sarnia-Lambton and our experience has grown into a reputation for quality and fairness that we work very hard to protect. Call Mark’s Comfort Tech for all your heating and cooling needs in Sarnia-Lambton.


Our Sarnia Air Conditioning installation, service, repair and sales are second to none. With years of Air conditioning experience in Sarnia we can honestly say we seen it all. Read more about our Sarnia Air Conditioning Services.

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Sarnia furnace installation, repair and service is our specialty. Our experienced furnace technicians will solve your heating issues at no time, making sure your home is warm again. Read more about our Sarnia Furnace And Heating Services.

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10 Year Warranty

Marks Comfort Tech will register your warranty on your behalf giving you a 10 year parts limited warranty.


From new installations to small repairs, we’re here to serve all of your needs. Call us for a quote.

Our Community

We care about our community, that’s why we sponsor local sports – The Sarnia Legionnaires.