Sanitation & Plumbing

plumbing and sanitation bongshai engineering

Bongshai Construction & Engineering is the only plumbing contractor you will ever need! We work in all areas of plumbing and sanitation services. Whether it’s a residential or commercial project, repairs or new construction, we have the experience and dedication to get the job done right and on time. We have a complete line of septic and drain machines along with the proper certifications giving us the availability and knowledge to work on your project with complete confidence. We offer state-wide coverage for new construction and commercial work


The scope of services generally comprises the following:

  • installing and testing both drinking and non‐drinking heated or cold-water services.
  • installing and testing solar hot water services
  • fabricating and installing hydrant and hose reel systems
  • conducting water pressure tests
  • installing and connecting backflow devices (but not the ongoing maintenance testing/ commissioning)
  • fabricating and installing sanitary stacks used in multi-story buildings
  • installing piped vents and penetrations ensuring the roof and wall penetrations are watertight
  • applying different methods of venting,
  • installing suspended pipework for fixtures cutting into existing pipework for additional fixtures