Our house came with these Levolor top down/bottom up cordless Roman shades. I like them a lot but a few of them no longer go all the way down, like the strings have shrunk over time. I’d like to get them restrung as they are $417 a piece and otherwise in good shape. I’m having a hell of a time finding some place locally that does this. I was talking to Lovett in Downers Grove, but they only work on Hunter Douglas cordless shades. Anyone else have blind/shade repair work done anywhere?