Mini-Split Ductless Heat Pumps from Hammack Service Company Help you Manage Warm Summers and Cold Winters in Richardson Whether you want a home comfort boost in one room, two rooms, three rooms, or even four rooms, Hammack Service Company in Richardson has a mini-split heat pump that will meet your requirements. Our mini-split heat pumps from Lennox® deliver suberbly efficient and supremely quiet performance season after season. Their ductless design erases the possibility of difficult installation problems or high-priced modifications down the road. What’s more, their efficient, all-in-one heating and cooling system makes sure your home is comfortable year round. Explore the models we offer. If you want service for your mini-split heat pump or need a new unit, Hammack Service Company in Richardson is ready to serve you. Call us at 972-351-8874 or make an appointment with us using our online scheduler. * SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment. ** HSPF, or Heating Seasonal Performance Factor, measures the heating efficiency of your heat pump. A higher HSPF rating means greater energy efficiency, more savings and is better for the environment.