I removed the plastic sills last summer and discovered that the metal outer sills had a whole load of rust. It had been totally hidden by the plastic trim. What was worse was the fact that whilst not looking like a structrual problem yet, the metal had completely perforated in on or two spots. It looked like the plastic trim had vibrated and worn the paint away alowing rust to get a hold.
Can anyone tell me; a) Is this common, and b) how easy is it to have the sills replaced.
It looks like the sills have to be pretty well positioned so that the holes line up to take the plastic rivets holding the plastic trim.
Thanks
Alan