I know of people who do it in Manurewa and Penrose.
Had mine done in 'rewa and they did an excellent job, I think it was Best Bars. They do mobile installs too.
-.-. --.- BlakJak - 2001 Toyota Gaia (yeah i'm all domesticated now) (RIP Toyspeed Profiles! Finally had to disable them due to compatibility with newer versions of things. Sorry!)
As long as its not some back-yard outfit and they warranty their work most of em are pretty good. They all have to conform to certain standards.
I can certainly reccomend Best Bars but theyre not on the shore AFAIK.
-.-. --.- BlakJak - 2001 Toyota Gaia (yeah i'm all domesticated now) (RIP Toyspeed Profiles! Finally had to disable them due to compatibility with newer versions of things. Sorry!)