#1 Plumber in Melbourne, Guardian Plumbing, Richmond Victoria. Melbourne plumber - from blocked drains to gas appliances water saving ideas all maintenance & repairs. Guardian Plumbing available 24hrs/7days1300 138 973 Welcome to Guardian Plumbing and Gas Services Your Local Experts! Scott has been a plumber in Melbourne since 1989, Guardian is a family owned and operated company whose main focus is 100% customer satisfaction guaranteed or we return for free. We are dedicated to get the job done right the first time. If you don’t say wow that was great service we are not happy. We are all about you, our clients, being so happy with our service you will tell your friends. This shows in the remarkable amount of repeat and referral business from our happy clients we receive. Please review what some of our very satisfied clients have to say about us. You can be confident with our highly developed skills and specialised equipment we can tackle any of your water and gas maintenance needs. If it’s a private home, rental or owners corporation properties, restaurants, cafés, bars or a corporate business we are Melbourne’s first choice for plumbers.