Welcome To MGB Joinery and Building MGB Joinery and Building is a family owned and operated business services clients throughout Sydney Metro, Western Sydney & Southern Highlands. With over 10 years experience within the industry, Matt and his team have tackled many high end builds for large scale corporates within Sydney CBD which included luxury apartments, shop and office fitouts and many more. Here at MGB Joinery and Building, we are focused on quality workmanship and will not settle for anything less than the best for our clients.