Phoenix Underground Construction is an excavation contractor, specializing in full site development, land clearing, civil to infill work, underground utilities, Septic system installation, and fire sprinkler service mains. Our focus is to complete your excavation, and site preparation project to the highest standards. We are a one stop shop for all of your Site development needs. Not only do we specialize in, Excavation, Grading, and Underground Utilities on site. We also are a registered side sewer contractor able to preform all your underground utility needs in the right of way (roads). Including new sewer/water connections, and running new sewer and water mains altogether. We also are a Washington state Level U certified contractor for installation of underground fire suppression systems for your next commercial, or residential project. We work in partnership with our clients, performing services with skill and integrity. We review every detail of the project during the construction contracting process, assigning the appropriate equipment to your project site in coordination with your overall construction schedule.