Many businesses and charities are changing to WordPress due to ease of use and flexibility. With almost endless options and open source there is no need to worry that it will become out of date. Why not transfer your site?
Many existing websites worked well for PCs and laptops but are less suitable for mobile devices such as tablets and phones. Transfer your website to a modern theme that looks great on all devices.
Many small charities come to Cambwebs as they know they will get a modern design but also with my background in the charity sector I understand the constraints and challenges facing the sector, particuarly at the current time. Get great value as well as a stunning website.