Pipe and Duct Systems, LLC

Pipe and Duct Systems, LLC is a WBE-certified, complete mechanical contractor specializing in commercial and industrial HVAC, plumbing, and pipefitting. Service & Maintenance Our HVAC and Plumbing Service Team offers 24/7 service and planned maintenance programs to help keep your systems running smoothly and avoid downtime. Custom Sheet Metal & Pipe Fabrication We offer custom sheet metal and pipe fabrication in St. Louis fabrication shops, enabling us to meet all our clients' needs. HVAC We install and service boilers and HVAC systems and offer design/build capabilities. We offer air balancing to meet your ventilation requirements, no matter how sophisticated, to ensure efficient operation and longer equipment life. Plumbing We are full-service, specializing in new construction, rehab, tenant finish, backflow, inspections, service, and planned maintenance. Our clients span a variety of industries, including: Commercial Industrial & Warehouse General Contractors Property Managers Parking Structures Sports Stadiums Utilities & Water Wastewater ASME Vessel Repair Educational Facilities Hospitality & Entertainment Religious Spaces Manufacturing Food & Beverage Healthcare Laboratories Data Centers & Technology Government Agencies