Do you want to replace the windows on your property with new uPVC double glazed units? CLM Windows & Doors provide a comprehensive double glazing service throughout Aberdare, Merthyr Tydfil, Pontypridd and the surrounding areas. CLM Windows & Doors provide a wide range of windows, available in uPVC, aluminium and timber. Our professional installation service gives you complete peace of mind, with all work carried out to the highest standard. Are you looking to replace your front door? CLM Windows & Doors have a huge range or styles and colours to choose from, all at competitive prices. We will supply and install the door to suit your property, with contemporary, rustic, traditional and Victorian styles. CLM Windows & Doors only use the highest quality materials when installing your new doors. You can rest assured that your new doors will be installed to the highest standard, at a time to suit you, with minimal mess and disruption.