# Commercial Plumbing Projects in St. Louis > 23 plumbing projects listed by Legacy Plumbing; Foristell, MO, St. Charles, MO, St. Peters, MO, Hazelwood, MO, St. Louis Metro, St. Charles County, MO. Canonical: https://legacyplumbingmo.com/projects Last updated: 2026-10-27 Project Portfolio Ground-up construction, tenant finish, industrial plumbing, and healthcare fit-outs delivered for general contractors and owners across Missouri and Illinois — self-performed by UA Local 562 crews. [Contact Us](https://legacyplumbingmo.com/contact-us) [Call Estimating](tel:+16369780120) Why Legacy ## Credentials General Contractors Rely On Certificates available on request Licensed Master Plumbers Missouri & Illinois licensed leadership on every project. UA Local 562 Signatory Labor Certified journeyman plumbers and registered apprentices. Since 1996 St. Louis Metro Multi-generation commercial plumbing experience. OSHA 30 Documented Safety Program Field leadership trained; EMR available on request. Featured Work ## Recent Commercial Builds A selection of projects delivered for GCs, developers, and owners across the St. Louis metro. Full project references available on request. Across 13 recent Legacy projects: 41 water closets, 51 lavatories, 71 floor drains/sinks, and 17 dental chairs/treatment rooms plumbed. This is a documented sample, not lifetime totals; unspecified quantities are excluded. [Dental office plumbing and healthcare project proof](https://legacyplumbingmo.com/industries/dental-office-plumbing) ## Industrial / Cold Storage Industrial / Cold Storage ### Cold Storage Plumbing in Foristell Foristell, MO Site utilities: sanitary sewer, storm, and domestic water service; Underground plumbing rough-in coordinated with cold-storage slab pours View project scope ## Education Education ### School Plumbing Renovation in St. Charles St. Charles, MO Restroom group renovations with ADA-compliant fixtures; Domestic water and sanitary re-routing for classroom additions View project scope ## Industrial Industrial ### Manufacturing Facility Plumbing in St. Peters St. Peters, MO Domestic water service and interior distribution; Sanitary drainage and trench drains for the production floor View project scope ## Healthcare / Dental Healthcare / Dental ### Dental Office Plumbing in Hazelwood Hazelwood, MO Dental office rough-in, medical gas, dental vacuum, sterilization and lab plumbing. View project scope Healthcare / Dental ### Dental Office Plumbing in St. Louis St. Louis Metro Ground-up dental office plumbing, underground utilities, medical gas and dental vacuum. View project scope Healthcare / Dental ### Dental Plumbing in Webster Groves Webster Groves, St. Louis County Dental vacuum and compressed air, fixture connections and existing-system tie-ins in an occupied multi-tenant building. View project scope Healthcare / Dental ### Dental Office Plumbing in Vandalia Vandalia, Audrain County New dental office plumbing in Vandalia: waste, water, vent, dental vacuum, compressed air, fixtures and backflow protection. View project scope Healthcare / Dental ### Dental Medical Gas in South St. Louis County St. Louis, South St. Louis County New dental office sanitary, water, air, vacuum, oxygen and nitrous oxide piping, with underground work and hot-water recirculation. View project scope Healthcare / Dental ### Dental Practice Expansion in Wentzville Wentzville, St. Charles County Five new treatment rooms with dental gas, air and vacuum, a sterilization area, ADA restroom rework and concrete floor patching. View project scope Healthcare / Dental ### Dental Surgery Plumbing in Richmond Heights Richmond Heights, St. Louis County Dental surgical center interior plumbing with clinical sinks, accessible fixtures, grinder lift station, tankless water heating and RPZ. View project scope Healthcare / Dental ### Dental Office Renovation in St. Louis St. Louis, City of St. Louis Dental air and vacuum to chair control valves, seven new sinks and existing-system tie-ins above occupied finished space. View project scope Healthcare / Dental ### Dental Air & Vacuum in Weldon Spring Weldon Spring, St. Charles County Chair-side compressed air and vacuum piping connected to a new compressor and vacuum pump, plus a sterile-area stainless sink. View project scope Healthcare / Dental ### 12-Chair Dental Plumbing in Lake Saint Louis Lake Saint Louis, St. Charles County Existing dental plumbing reworked for two new sinks, with compressed air and vacuum to control valves at twelve chairs. View project scope ## Automotive Automotive ### Express Car Wash in St. Louis St. Louis Metro Sanitary, storm, and domestic water underground; Reclaim system piping and equipment connections View project scope ## Commercial Commercial ### Medical Office Rough-In St. Charles County, MO Copper domestic water and PEX distribution; Sanitary and vent rough-in for exam and lab rooms View project scope ## Multi-Unit Residential Multi-Unit Residential ### Multi-Family Rough-In St. Louis Metro Site sanitary, storm, and domestic water; Multi-story sanitary and vent stacks View project scope ## Site Utilities Site Utilities ### Ground-Up Site Utilities O'Fallon, MO Sanitary sewer service and lateral tie-ins; Storm drainage and detention connections View project scope ## Facility Services Facility Services ### Facility Water Heater & Backflow Program Regional Portfolio Commercial water heater replacements (gas, electric, tankless); RPZ / backflow preventer installation View project scope ## Restaurant / Food Service Restaurant / Food Service ### Restaurant Plumbing in Crestwood Crestwood, St. Louis County Pizza restaurant interior plumbing with kitchen drainage, solids and grease interceptors, water heating and restroom fixtures. View project scope ## Industrial / Manufacturing Industrial / Manufacturing ### Plant Cafeteria Plumbing in St. Louis St. Louis, City of St. Louis Cafeteria and restroom renovation in an operating pharmaceutical plant, with existing-system tie-ins, showers and water heating. View project scope ## Retail Retail ### Retail Plumbing in South St. Louis County St. Louis, South St. Louis County Interior plumbing and pipe insulation for a new retail building, including roof drainage, overflow drainage and floor cleanouts. View project scope ## Fitness / Recreation Fitness / Recreation ### Fitness Club Plumbing in St. Peters St. Peters, St. Charles County Fitness club restroom and shower plumbing, sensor fixtures, tankless water heating, circulation and drinking fountains. View project scope ## Healthcare Healthcare ### Dialysis Clinic Plumbing in Florissant Florissant, St. Louis County Outpatient dialysis clinic plumbing with station-box piping, mixing valves, clinical drainage and recirculating gas water heating. View project scope From the Field ## What GCs & Owners Say "Legacy self-performed our underground and rough-in on a tight commercial schedule. Their foreman ran the sequence with our super — no chasing, no re-work." General Contractor Commercial Build · St. Charles County Sanitized for client confidentiality. Named references available on request. Trusted Industry Partnerships ## Signatory, Licensed & Affiliated [UA Local 562 Union-trained craftsmanship and apprenticeship pipeline.](https://local562.org/en) [MCA of Eastern Missouri Mechanical Contractors Association member — industry advocacy and standards leadership.](https://www.mca-emo.com/) [BOMA St. Louis Building Owners and Managers Association of St. Louis.](https://bomastl.org/) ## Ready to Prequalify Legacy for Your Next St. Louis Build? Call 636-978-0120 or send project documents — same-business-day response from estimating. [Get Free Estimate](https://legacyplumbingmo.com/contact-us) [636-978-0120](tel:+16369780120) ## Related - [Contact Legacy Plumbing](https://legacyplumbingmo.com/contact-us) - [Company facts](https://legacyplumbingmo.com/company-facts) - [All pages (llms.txt)](https://legacyplumbingmo.com/llms.txt)