Deeds to house

I've been sorting out paperwork this Christmas and realised that I don't seem to have the deeds to my house. I have seen them at some stage, as I remember the name of the first listed owner (one Jarvis Cade) in 1893 or thereabouts. But I haven't got them now, and I'm wondering if they might still be with the original solicitor. I paid off my mortgage a few years ago, and got back a big package containing everything from the building society but not the deeds.

I'm not thinking of moving in the near future, but presumably I will need them if I do. Can anyone advise?