H9A China Construction (South Pacific) Development Co Pte Ltd is a builder and development contractor on MacAlister Road in Bukit Merah, Singapore, rated 4.4 from seven Google reviews.
Building in Singapore is a licensed trade: contractors need a builder's licence from the Building and Construction Authority, with different classes for different project scales, and larger works also require permits and plans approved through qualified professionals. A good builder manages that paperwork as carefully as the site work itself. People commissioning one, usually a developer, owner or main contractor, tend to judge firms on their track record with similar projects, their site safety and how itemised their quotes are, since bids for the same job can vary widely.
For a firm on MacAlister Road in Bukit Merah, a district where older blocks are steadily upgraded and rebuilt, a small but steady review score is a fair place to start.