# Commercial Plumber in Maplewood, MO > MSD's Hampton Creek Sanitary Relief replaces about 7,600 ft of pipe in Maplewood with 8- to 72-inch sewer, a multi-year job. Legacy Plumbing bids there. Canonical: https://legacyplumbingmo.com/service-area/maplewood-mo Last updated: 2026-10-30 St. Louis County, MO Maplewood contracts with St. Louis County, so commercial plumbing permits run through the county. Legacy Plumbing serves Maplewood with commercial plumbing and select residential service. In Maplewood our commercial plumbing focus includes restaurants and breweries along Manchester Rd. [Request a Bid in Maplewood](https://legacyplumbingmo.com/contact-us) [636-978-0120](tel:+16369780120) ## Free Estimate — Maplewood Same-business-day response from our O'Fallon office. ## Who permits plumbing work in Maplewood Public facts from government and utility sources, not Legacy Plumbing project claims. - Maplewood contracts with St. Louis County for the mechanical, electrical and plumbing codes (the city runs its own building code), so commercial plumbing permits and inspections run through St. Louis County Transportation & Public Works. [St. Louis County Transportation & Public Works](https://stlouiscountymo.gov/st-louis-county-departments/transportation-and-public-works/publications-and-manuals/matrix-information/municipality-contracts/) - MSD's Hampton Creek Sanitary Relief replaces about 7,600 ft of pipe in Maplewood with 8- to 72-inch sewer, a multi-year job. [MSD Project Clear](https://msdprojectclear.org/system-improvements/new-construction/hamptoncreek2/) Public sources checked 2026-10-30 ## Commercial plumbing services in Maplewood ### Service & repair Scheduled drain, lateral and water heater repairs in Maplewood, where MSD has worked on undersized sewers. Explore service & repair ### Tenant build-outs Office, retail and medical suites in Maplewood, with permits through the county. Explore tenant build-outs ### Backflow install & testing Annual testing and assembly replacement for Maplewood buildings. Explore backflow install & testing ## Scheduling commercial plumbing in Maplewood Maplewood sits in St. Louis County, MO, roughly 24 straight-line miles from our O'Fallon shop; the closest towns we also serve are Richmond Heights (about 1 mi), Brentwood (about 1 mi) and Dogtown (about 2 mi). Legacy Plumbing has worked as a UA Local 562 signatory [commercial plumbing contractor in St. Louis](https://legacyplumbingmo.com/) since 1996, and the [St. Louis plumbing hub](https://legacyplumbingmo.com/locations/st-louis) covers the wider area. ## Licensed to pull plumbing permits in Maplewood For Maplewood work, our master plumbers pull the plumbing permit through the jurisdiction covering Maplewood in St. Louis County ourselves. Legacy Plumbing is licensed to pull plumbing permits in every St. Louis–area jurisdiction we serve: St. Louis City, St. Louis County and its municipalities, St. Charles County and Jefferson County. ## Legacy Plumbing projects in and near Maplewood Our closest documented work to Maplewood is in Richmond Heights, Webster Groves, Crestwood, St. Louis, within about 7 straight-line miles — dental surgical center, dental office in an occupied building, restaurant build-out and plant cafeteria and restroom renovation. Distances are straight-line between town centers. - [Near Maplewood — Richmond Heights, ~1 mi ### Dental surgical center (2024) Richmond Heights Clinical plumbing with plaster traps, 12 floor drains, hub drains and cleanouts, plus a grinder lift station and sump pump. View project scope](https://legacyplumbingmo.com/projects/dental-surgery-center-plumbing-richmond-heights-mo) - [Near Maplewood — Webster Groves, ~2 mi ### Dental office in an occupied building (2026) Webster Groves Dental build-out with four water closets, four wall-hung lavatories and a 40-gallon water heater, worked around occupied space below. View project scope](https://legacyplumbingmo.com/projects/dental-office-plumbing-webster-groves-mo) - [Near Maplewood — Crestwood, ~5 mi ### Restaurant build-out (2025) Crestwood Kitchen drainage, grease interception and water heating for a new restaurant space, plus restroom fixtures and permits within the same interior package. View project scope](https://legacyplumbingmo.com/projects/restaurant-plumbing-crestwood-mo) - [Near Maplewood — St. Louis, ~7 mi ### Plant cafeteria and restroom renovation (2025) St. Louis Renovation scope with 5 water closets, 7 lavatories, 4 showers, a bottle-filling fountain and a recirculating electric water heater with an RPZ. View project scope](https://legacyplumbingmo.com/projects/pharmaceutical-plant-cafeteria-renovation-st-louis) FAQ ## Maplewood Plumbing Questions - **Can you help with grease waste for a Manchester Rd restaurant or brewery?:** Yes. We handle grease interceptors, grease waste piping and kitchen plumbing. We review the existing connections and proposed kitchen equipment before sizing the work, and confirm the applicable grease-management requirements for the property. - **Who issues commercial plumbing permits in Maplewood?:** Maplewood contracts with St. Louis County for the mechanical, electrical and plumbing codes (the city runs its own building code), so commercial plumbing permits and inspections run through St. Louis County Transportation & Public Works. ## Nearby areas we serve - [Commercial plumbing in Brentwood](https://legacyplumbingmo.com/service-area/brentwood-mo) - [Commercial plumbing in Richmond Heights](https://legacyplumbingmo.com/service-area/richmond-heights-mo) - [Commercial plumbing in Webster Groves](https://legacyplumbingmo.com/service-area/webster-groves-mo) - [Commercial plumbing in University City](https://legacyplumbingmo.com/service-area/university-city-mo) ## Need a Plumber in Maplewood? Call 636-978-0120 or request your free estimate — we respond same business day across St. Louis County. [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)