Cowal Building & Plumbing Supplies Ltd is located in Dunoon, United Kingdom on 10-12 Jane St. Cowal Building & Plumbing Supplies Ltd is rated 4.8 out of 5 in the category building materials supplier in United Kingdom. Cowal Building and Plumbing SuppliesWhether you are building a house, residential development, are a DIY enthusiast or a commercial business we have the materials you need to get the job done, ensuring you achieve the best results.We provide a local building and plumbing supplies service run by the same family for many years. Service is our focus and we maintain a professional service to companies and individuals throughout Scotland.