S&P Heating LLC is a trusted HVAC contractor serving St. Clair County, Michigan, and surrounding communities including Port Huron, Marysville, Marine City, Fort Gratiot, Algonac, East China, Capac, and Richmond. As a leading heating and cooling contractor, we offer comprehensive HVAC services for both residential and commercial clients. From fast AC repair in Marysville MI to expert furnace installation in Fort Gratiot MI, we deliver efficient, reliable results every time. Our licensed HVAC technicians specialize in air conditioning repair, furnace repair, HVAC installation, ductless mini split systems, and indoor air quality services. Whether you need smart thermostat setup, HVAC zoning systems, or boiler repair, we tailor solutions to fit your needs and budget. We also provide 24/7 emergency HVAC repair in St. Clair County MI, ensuring year-round comfort when you need it most. As an affordable HVAC company near you, S&P Heating LLC is proud to be the go-to choice for HVAC services in St. Clair MI. From regular HVAC maintenance in Algonac MI to full HVAC troubleshooting, we handle it all. Compare HVAC companies in St. Clair County MI and discover why we’re rated among the best. Contact us today for a free estimate and experience top-rated residential and commercial HVAC service you can count on.