Fact Sheet
Legacy Plumbing — Company Facts
The key facts about Legacy Plumbing in one place. Last updated: October 2026.
- Name
- Legacy Plumbing
- In business since
- 1996
- Type of work
- Primarily a commercial plumbing contractor, with select residential service — repairs, water heaters, drains, and gas lines — through our service division.
- Union
- Signatory contractor with UA Local 562 Plumbers & Pipefitters (St. Louis).
- Affiliations
- MCA of Eastern Missouri; BOMA St. Louis.
- Sister company
- Kuesel Excavating Co. (kueselinc.com). Kuesel Excavating Co. acquired Legacy Plumbing in May 2025. Our story
- Address
- 811 N Main St, O'Fallon, MO 63366 — map & directions
- Phone
- 636-978-0120
- Hours
- Mon–Fri 7:00 AM – 4:00 PM, Sat–Sun Closed. We do not staff an overnight on-call crew.
- Service area
- St. Louis metro: St. Louis, MO; St. Louis County, MO; St. Charles County, MO; Jefferson County, MO; Franklin County, MO; Lincoln County, MO; Metro East, IL. Full service area
- Service lines
- Industries served
- More
- Projects · FAQ · Resources · Contact / request a bid
Last updated: October 2026
Need a Plumber in St. Louis or the Surrounding Area?
Written bids within one business day, scheduled service Monday–Friday 7am–4pm, and union-trained crews since 1996 across the St. Louis metro and a 2-hour radius.