We are OPEN and taking the necessary precautions to keep our clients and employees safe during this time. Call us today to ask about a project estimate and our services. AJR Plumbing & HVAC is a family owned and operated HVAC contractor serving properties throughout Massachusetts. We proudly offer professional and reliable repair and installation service for a selection of heating, air conditioning and plumbing systems. With industry experience for 50 years, we are confident our technicians are fully equipped and skilled to handle your emergency repairs and upgrades.