At Carlton 5 Mechanical Services, we specialize in all aspects of heating, ventilation, and air conditioning. From AC repair to furnace installation and ductwork services, our certified technicians deliver high‑quality workmanship and dependable solutions tailored to your home or business. Our comprehensive maintenance plans keep your HVAC system running efficiently, saving you money on energy bills and reducing unexpected breakdowns.

Serving the ON L2V 3X9 area and surrounding communities, we are proud to be your local trusted HVAC contractor. Call us today for a free estimate and experience the Carlton 5 difference.

Founded in 2010, Carlton 5 Mechanical Services has become a leading HVAC contractor in Thorold, ON. Our team of experienced technicians is committed to delivering personalized service, transparent pricing, and durable results. We use the latest tools and industry‑approved products to ensure the highest standard of quality. Whether you need a routine maintenance check or emergency repair, we are ready to help.