Mini-Split Ductless Heat Pumps from Contra Costa Heating & AC Help you Manage Warm Summers and Cold Winters in the Bay Area Contra Costa Heating & AC in the Bay Area offers a mini-split heat pump to meet your home comfort needs, no matter if you need heating and cooling to one room or up to four rooms. You can look forward to nearly noiseless, efficient performance from our durable Lennox® mini-split heat pumps. With an easy-to-install, ductless design, these mini-split heat pumps also eliminate the potential for costly modifications later on. Our systems provide season after season of efficient comfort in a streamlined package. Check them out. Contra Costa Heating & AC in the Bay Area is here to help you find the right mini-split heat pump for your family or our experts can service your existing mini-split heat pump. Schedule an appointment with us online , or call us at 510-343-9841. * 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.