You just arrive home to find a plumbing leak in your home! After you shut off the water and control the leak, what do you do next? You need to find a qualified professional plumber to locate and repair your emergency! Here is a short checklist for you to follow in finding and hiring a plumber. Calgary Plumbing and Plumbers, Heating & Air Conditioning. Hansen is your expert source for all plumbing, HVAC and Furnace Repair needs in Calgary, Alberta.