Why Choose Us?
Mailloux Mechanical Ltd. is a trusted HVAC contractor serving Oldcastle and surrounding areas. With a team of certified technicians, we provide reliable AC repair, furnace service, and complete HVAC solutions—all backed by a satisfaction guarantee.
About Us
Founded in 1995, we have over 25 years of experience in heating, ventilation, and air conditioning. Our mission is to keep your indoor environment comfortable, healthy, and energy efficient.
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