Our Client had a failure of their chiller unit at a major building in Belfast. An initial meeting on the Tuesday combined with our other clients cooperation to have other work rearranged, we had our men on site on Wednesday stripping insulation and old pipework and Pre-fabricating pipework.  A Shut down on the Sunday to have a crane to lift the old chiller and pipework down and then placing three temporary chillers and new pipework onto roof.  Our Guys worked over the weekend resulting in being operational a day earlier than planned.