Pay Ah Heng Contractor is an established ISO 9001, ISO14001, OSHAS 18001 Civil Engineering Company. We specialise in pipe-laying and pipe-jacking works since 1956. Our history dates back earlier than the operation of Singapore-Johore causeway water pipes. We have since built a reputation in the industry for being able to provide reliable services and well-completed projects over the years, and many years down the road.