Centralized and decentralized systems, evaporative cooling, fan coil units, gas furnace, heat pumps, geothermal heat pump, thermal storage and heat recovery systems. LSE also provides feasibility studies and economic evaluations of various HVAC designs in addition to the development of energy conservation methods

ADA compliance, gas piping, fuel oil piping, medical gas piping, water usage estimates, gas usage estimates, sanitary and storm water drainage, domestic cold and hot water distribution and plumbing fixture specification.