Super Seal specialises in manufacturing PVC Windows and doors for both the trade sector and homeowners. Based centrally near Belfast, we have over 30 years of experience in the market, and provide exceptional quality products to customers throughout the UK-Northern Ireland and Ireland.


Our range of doors are also available in a wide array of styles and designs, using either system 60 or 70. Utilising the Safeware range of security hardware, we are confident that our doors are amongst the safest available on the market today. Super Seal products are designed and built to the highest standards, and we are constantly striving to maintain this high quality, and to find new ways of improving our products further. In accordance with this ethic, product quality is checked at every stage of the manufacturing process.


We produce a full range of windows suitable for both replacement window purposes and for new builds. Our PVC Windows are fabricated using window systems made by Profile 22 , the UK's foremost manufacturer of PVC Window frames. Available in a range of colours, finishes and styles, our windows are custom-made by professionals, with a 59mm, 67mm or 80mm outer profile suit your specific purposes.