Progress photos of large, commercial plumbing installation by our crew in Tyngsboro, MA showcasing no-hub cast iron drainage. Even though ABS or PVC piping can be used for commercial buildings according to the Uniform Plumbing Code (UPC), cast iron piping is used in most commercial buildings like hospitals, hotels, vehicle dealerships, banks, office buildings, schools, and other facilities. Local or state building codes may specify cast-iron pipe be used due to various reasons. Some codes limit plastic piping to no more than two story buildings. Other local codes for health or safety, specify cast iron piping because it is not susceptible to burning like PVC or ABS piping, should a fire occur. Cast iron piping is often used in many residential multi-story housing projects because it provides a much quieter flow of waste water than either ABS or PVC plastics. If you have ever been in a room on the first floor of a two story building where ABS or PVC was installed and someone flushes the upstairs toilet, you can appreciate the sound generated. Have a plumbing project in mind? Call us, we have the experience and expertise to bring all your plans to life.