Composite Door Designer Oasis Windows – Door Design Why Choose Oasis We've been working with the local area for almost 20 years LOCAL SUPPLIERS Oasis Windows have been working with local suppliers since it began trading in the 1990’s.GUARANTEED WORKMANSHIP All of our work carries a 10-year guarantee for total peace of mind.ACCREDITATIONS We are proud to be members of the Trading Standards “Buy with Confidence” scheme and FENSA registeredOWN FITTERS We always use our own team of fitters so ensure each install is completed professionally.