When it comes to Furnace Repair, Heating Repair, Air Conditioning Repair, and more, no one compares to David Heating & Cooling Inc. With years of combined experience, David Heating & Cooling Inc has worked hard to build the trust of our clients in Merrimac and surrounding areas. Visit our website to learn more or better yet, call us today!

Founded in 1996, Main Stream Mechanical is a full service plumbing, heating, and air conditioning contractor. Our technicians have over 60 years of combined experience in the HVAC/plumbing fields, and our professional service teams include Master and Journeyman Plumbers and Gas Fitters who are dedicated to providing exceptional service.