The Serco Thermal Guard Package allows trailer doors to swing open into the building after the trailer is docked, providing facilities with the ability to save money through lower energy bills, loss prevention and increased productivity. The Thermal Guard Package includes an enhanced hinged bottom pad, bumper covers and extended bumper gussets (to work with 10’ wide doors) to provide greater sealing capability, as well as an extra dock bumper mounted on the face of the dock to better protect the building.