Hiring a fit out contractor in KL is a big move. You must check CIDB...

https://www.re-thinkingthefuture.com/article/what-makes-a-good-fit-out-and-interior-design-contractor-in-malaysia/

Hiring a fit out contractor in KL is a big move. You must check CIDB registration- demand itemized quotes to avoid hidden costs- and monitor key timeline stages