Signs and Window Graphics When it comes to signage there is very little we cannot do! We manufacture and install a wide range of signs to suit any budget. We can design fully illuminated signs, fret-cut letters, projecting signs and interior cable signs. Whether you have detailed requirements or just a rough idea, Crystal Clear staff will be only too happy to discuss your needs and provide a detailed quotation for the work required. We also offer a sign maintenance service for old signs that need repairing. Our repair services include installing new light tubes, gear trays or fixing damaged panels.