Dont be put off by the unprepossessing exterior! Helpful staff and a good selection of materials. They are in lower Bark St, so use one of the side roads (Honeywell or Military) to get into Celie Rd, then look out for the signboard at the corner of lower Bark. They are on the right at the bottom - look for the yellow doors.
Naydeen assisted me- excellent service!
Staff not too friendly and service is slow