Need to create an industrial aluminium staircase, can anyone suggest a shop in Pattaya area that can fabricate this?

HomePro have a variety of ascension devices, I think they're called ladders. Is that industrial enough?

 

Found this from a couple of years ago.

 

 

Try Daeng Lohakit, they do stainless, next door or so is a guy who welds aluminium. Daeng can certainly do the cutting and folding, probably they can weld Al also.

 

It's about here, on Northbound side of Sukhumvit :- Dropped pin
https://maps.app.goo.gl/cGR2U9qhuN17dyeM6

 

and clearly signed in English. Boss is very helpful.

You can try this company:
Sricharoen 
Just google it.  They probably won't come do onsite work but they are a good supplier.

Another idea, no so easy, is to go down to Ocean Marina area south of Jomtien.  Lots of boat builders around that area who can weld aluminum.

 

HomePro?  LOL  

I have a CNC machining company.  We don't weld aluminum but we cut it all day long.  Wish we could help more.
All the best,