Hallen Construction provides several types of service installations which can be plastic or steel and high or low pressure in sizes from ½" to 12". The first type of service installation is a new business installation. This type of service is for new buildings and existing buildings that have no gas. The work involved in a new service requires excavation over the distribution main, trenching from the main to the building, installing the service pipe, testing the new service, connecting the service to the distribution main, backfill and roadway restoration.