time to repot ???

[Sawdust]

Hope everyone has had a good holiday. I have several orchids that we got in Hawaii several years ago. The picture is some of the divided ones. They are about 4 years old now. I was wondering if I should repot, if so into a larger pot. I also have some Zoo Med fir bark that is usually used of lizards etc. I was planning to use this with some moss and peril light. Or should I use something else. I have 3 or 4 of these pots. If anyone is in the Kingston Ontario area and wants one let me know. Take care and happy growing