A sign is usually an investment. It is something you spend a considerable amount of money on, to help advertise your business, or make the space more enjoyable for staff and customers. A poorly maintained sign not only presents safety issues, but reflects you as a company. If your sign is left dirty, with parts missing or not working, people may be less likely to shop with you or use your services, whereas a clean fully working sign shows the level of care and attention you and your business puts into your work.