Lawrence Mechanical ...Heating, Air Conditioning & Refrigeration Commercial and Residential Service Company is a family owned business. Fully licensed and insured (License No. 759539) since 1994, we install only the best equipment and provide service & repair at a fair price. Put our 19 years of experience to work for you and benefit from our expertise! We provide service repair, refrigeration, process piping, chillers and cooling towers, commercial air conditioning unit change outs, electronic air cleaners, sheet metal fabrication, air duct testing, heating and air conditioning sales, boiler package units, all HVAC system and service repair, central heating, sell/service and repair walk-in freezers and ice machines, sell/service and repair chillers and more!