In my case, replacing turned out to be the smarter move. I originally wanted to just fix the rollers and seal, but once I looked into new doors and checked the https://ubrothersconstruction.com/catalog/doorentry/patio harvey sliding patio doors prices, I realized a full replacement wasn’t that much more. Now I’ve got a door that opens like butter, and no more condensation issues. Plus, it just looks better from both inside and out. Repair might seem cheaper short term, but in some cases it’s throwing money at a losing battle.