I recently tried House cleaner Singapore for spring cleaning service:
Domestic Cleaning Services in Singapore
Service and rates are good.
You can try get a quote.
Yes that is right.
Always check to see if you part time maid hold legal work permit.
This article on how to check if part time maid is legal might help:
How To Check If Part Time Maid Is Legal?
My aluminium window grilles done by:
Window & Door Grilles | Wrought iron gate | Window Grilles Singapore
Quite pleased with their service although quite hard to get a onsite quote.