I believe it's only we USers who use "fix" to mean "repair".

Zild uses "fix" for "repair" all the time. We would rent a flat, or an apartment, and if it needed maintenance work, we would fix it. Using "flat" for a rented residence gives the wonderfully useful verbal construction "flatting", which would be much more awkward if translated to "apartmenting". Unlike CK I have heard people outside of Lewisveal talk of fixing breakfast, which I must do now.