Ali'i Mechanical Contractors LLC is a General contracting business established in 1999 by Rail Jennings, with additional licenses in Boiler (c-4), plumbing (c-37), structural steel (c-48), and certified mobile welding. Services include underground fire protection solutions, double check detection assemblies, reduced pressure back flow preventers, excavation asphalt and concrete replacement, along with many others, all complimenting our abilities to provide all types of customer requested services. We understand how important it is to service your pluming and draining needs in a timely, courteous and professional manner-WHENEVER you need us, therefore we have a 24 hour Emergency service should you require.