A cowl can be an essential add on to any flue system. They help stop rain penetrating the flue as well as stopping birds either entering the flue or dropping twigs and berries down which can lead to future problems and blockages. There are many different types of cowls for all manner of different situations and our engineers will gladly advise you on the best type for your installation. We also have a full range of cowls available to purchase through our online store.