Heat pump installations start with an on-site consultation to assess the client's home, building site, and efficiency goals. Contractors perform detailed load calculations to measure the structure's heating and cooling requirements. They will also make sure that the unit and ducts function together to deliver optimal airflow. During replacements, contractors will remove the existing system and recover remaining refrigerant to comply with environmental regulations. When installing geothermal heat pumps, contractors must assess the property's layout and natural resources before installing the ground loop. Contractors can also secure permits and ensure that the installation meets local building codes.