Our wide range of uPVC window sills means whatever type of black ash window sills you are looking for, we'll have it. We only stock the best quality black ash window sills which means you are guaranteed the best products for the job. Matching fascia boards and soffit boards available.
Established in 1988, National Plastics are specialist suppliers of building plastics and much more! We are the largest independent trade counter in the UK, with 29 depots and an online distribution network covering the whole country. We pride ourselves on offering superior quality goods, at very competitive prices and with a service that is second to none.