Plumbing Engineering

Innovative and creative plumbing solutions for sustainable buildings

Every facility’s plumbing systems are unique to the type of building in which they are installed and the function of the spaces they serve. At HTW, we will work to provide a plumbing system design that meets all of the project requirements and is both sustainable and high performing.


  • Sanitary Drain, Waste, and Vent Systems
  • Natural Gas and Fuel Piping Distribution
  • Domestic Water Systems
  • Water Heating Systems
  • Medical Gas Systems
  • Compressed Air Systems
  • Pumping Systems
  • Solar Heating Systems
  • Storm Water Recovery Systems
  • Process Piping Systems



HTW provided Millyn’s with a new construction building to serve as a retail space in downtown Dardanelle. The exterior features a red brick and a

Diamond Bank

Diamond Bank’s new prototype office brings the vision of the owner to life.​