We don't have a set price to quote you here - cable jobs vary depending on whether it's one cable or a matched pair, whether the drums or bottom brackets need replacing too, and whether the spring system needs attention while we're in there. What we can tell you is that a straightforward cable swap is a smaller job than a full spring replacement, and we'll always tell you on-site if the cable is the only thing wrong or if age has caught up with more of the hardware at once. Given the income range typical of Brookshire households, we try to be direct about what's actually broken versus what's merely old, so you're not paying to replace parts that still have life in them.