# Contact Legacy Plumbing | O'Fallon & St. Louis

> Get a free commercial plumbing bid or book service with Legacy Plumbing, 811 N Main St, O'Fallon, MO. Written bids in one business day. Call 636-978-0120.

Canonical: https://legacyplumbingmo.com/contact-us
Last updated: 2026-10-28

Let's Talk

Tell us about your project — scope, schedule, and site address. Our team in O'Fallon, serving the St. Louis area, will get back to you within one business day. Commercial, residential, or scheduled service — same number, same team.

Since 1996 Locally owned Local 562 UA Union Signatory 7am–4pm Scheduled service 1 business day Bid response What Happens Next

## How Our St. Louis Commercial Plumbing Bid Process Works

### We pick up the phone.

A Legacy estimator reads your scope within one business day — often the same day. No call center, no bid-form purgatory.

### We scope and price it.

Commercial design/build, residential service, or scheduled service — your job gets routed to the right division with the right crew.

### Real number, real schedule.

Line-item pricing, a mobilization date, and a foreman or service tech you can call by name.

We respond to every message within one business day.

- Read by a Legacy estimator — never a call center.
- Line-item pricing, or time-and-material if you prefer.
- Licensed, bonded, insured · UA Local 562 signatory.

## Contact Us

Tell us scope, schedule, and site address — attach photos or plans if you have them. We reply within one business day.

Phone [636-978-0120](tel:+16369780120) Headquarters [811 N Main St, O'Fallon, MO 63366](https://www.google.com/maps/search/?api=1&query=811+N+Main+St,+O%27Fallon,+MO+63366) Hours Mon–Fri 7:00 AM – 4:00 PM, Sat–Sun Closed Scheduled service 7am–4pm Mon–Fri Service Area

## Where We Work: St. Louis Metro Service Area

Headquartered at 811 N Main St in O'Fallon, MO, we cover the entire St. Louis metro and a two-hour radius.

Common requests include [tenant finish plumbing](https://legacyplumbingmo.com/commercial/tenant-finish) for new suites and recurring [grease trap cleaning and pumping](https://legacyplumbingmo.com/facility-services/grease-trap-cleaning) for restaurant and cafeteria kitchens.

### St. Charles County

O'Fallon · St. Charles · St. Peters · Wentzville · Lake Saint Louis · Dardenne Prairie · Cottleville · Weldon Spring

### Lincoln County

Troy · Moscow Mills · Elsberry · Winfield · Old Monroe · Hawk Point · Silex

### Warren County

Warrenton · Wright City · Marthasville · Innsbrook · Truesdale

### St. Louis County

Affton · Clayton · Ladue · Brentwood · Chesterfield · Crestwood · Des Peres · Fenton

### Jefferson County

Arnold · Festus · Crystal City · Herculaneum · Pevely · De Soto · Hillsboro · Barnhart

### St. Louis City

Central West End · Compton Heights · Lafayette Square · Soulard · Tower Grove South · Shaw · Benton Park · The Hill

### Local Commercial Plumbing Pages

- [Commercial plumbing in St. Louis](https://legacyplumbingmo.com/locations/st-louis)
- [Commercial plumbing in St. Charles County](https://legacyplumbingmo.com/locations/st-charles-county)
- [Commercial plumbing in Jefferson County](https://legacyplumbingmo.com/locations/jefferson-county)
- [Commercial plumbing in O'Fallon](https://legacyplumbingmo.com/locations/ofallon)
- [Commercial plumbing in St. Peters](https://legacyplumbingmo.com/locations/st-peters)
- [Commercial plumbing in St. Charles](https://legacyplumbingmo.com/locations/st-charles)
- [Commercial plumbing in Wentzville](https://legacyplumbingmo.com/locations/wentzville)
- [Commercial plumbing in Chesterfield](https://legacyplumbingmo.com/locations/chesterfield)
- [Commercial plumbing in Clayton](https://legacyplumbingmo.com/locations/clayton)

Don't see your city? [View the full St. Louis metro service area →](https://legacyplumbingmo.com/service-areas)

## 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)