Need rust specialist (body of vehicle). Any recommendations?

[Witchbreed]

Hi,

Although it's not a Landie I have a Hummer H1 which needs attention where the aluminium and steel body parks join. Rust is bubbling through the paint work and can also be seen where the steel roof is welded to the body.

Can you recommend any firms that specialise in rust repair/removal and respraying?

Thank you in advance,

Colin.