Mini-Split Ductless Heat Pumps from White Mechanical, Inc. Help you Manage Warm Summers and Cold Winters in Rancho Santa Margarita White Mechanical, Inc. in Rancho Santa Margarita offers a mini-split heat pump to exceed your home comfort needs, no matter if you need heating and cooling to one room or up to four rooms. You can expect nearly noiseless, efficient performance from our durable Lennox® mini-split heat pumps. With their easy-to-install, ductless design, these mini-split heat pumps also eliminate the potential for costly modifications down the road. Our systems provide year-long, efficient comfort in a streamlined package. Check them out. White Mechanical, Inc. in Rancho Santa Margarita wants to help you find the right mini-split heat pump for you or our experts can service your existing mini-split heat pump. Schedule an appointment with us online , or call us at 949-284-6382. * 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.