Express Plumbing has been serving Lake Saint Louis for over two decades. We're based right here at 23 Catamaran Dr, which means when you call about a burst pipe or a water heater that quit, we're not driving 45 minutes to get to you. We know the neighborhoods around here — from the older homes near the lake to the newer builds out past Hawk Ridge. Jim's pulled permits at Lake St Louis City Hall more times than he can count, and he knows exactly what the local inspectors look for. Last winter, we replaced three frozen water heaters in one weekend after that cold snap hit. That's the kind of thing you deal with when you live and work in the same town.
From quick fixes to full installs, we do the work that keeps your water running.

Burst pipe? Overflowing toilet? Water spraying from under the sink? We're on our way. Most emergencies happen when you least expect them, and we've seen it all — from frozen pipes in January to sump pumps that quit during a storm. We carry parts on the truck so we can fix most problems same-visit instead of making you wait three days for a callback.

If your shower's running cold or you hear banging sounds from the basement, your water heater's telling you something. We install gas and electric units, and we'll walk you through what size makes sense for your house. Most installs take half a day, and we haul off the old one so you don't have to figure out where it goes.

Building an addition or finishing a basement? We handle the rough-in plumbing before the drywall goes up. That means running supply lines and installing vents so everything's ready when you're set to install fixtures. We work with your contractor's schedule and make sure inspections pass the first time.
A dripping faucet wastes more water than you think — and that sound drives you crazy at night. We fix leaks, replace cartridges, and install new faucets in kitchens and bathrooms. Most repairs take under an hour. If it's shot and needs replacing, we'll tell you straight instead of patching something that'll break again next month.
When heavy rain hits Lake Saint Louis, your sump pump better be working. We test pumps, replace failed units, and install battery backups so you're covered even if the power goes out. A working sump pump is the difference between a dry basement and a mess you'll be cleaning for weeks.

Adding a gas line for a new stove, dryer, or tankless water heater? We run gas pipe to code and test every connection. Gas work isn't something to DIY or trust to someone without a license. We're bonded and insured specifically for this, and we pull permits when they're needed.
Call and We'll Give You a Straight Answer
When you call (314) 807-8460, you talk to us directly. We ask what's going on and give you an honest take on whether it's something urgent or if it can wait. Since we're based in Lake St Louis, we can usually get to you same-day — often within the hour for emergencies. No runaround, no appointment three days out. We tell you when we'll be there and we show up.
We Diagnose and Quote Before We Start
We pull up with a fully stocked truck and take a look at the problem. Whether it's a leaking water heater or a faucet that won't stop dripping, we explain what's wrong in plain language and tell you what it'll cost to fix. If you're good with the price, we get started. If something changes once we're into it, we stop and talk to you first.
We Fix It Right and Clean Up After
Once we start, we don't leave until the job's done right. We use quality parts, follow local code, and make sure everything passes inspection if permits are involved. When we're finished, we test it, clean up any mess, and walk you through what we did. Most repairs take a couple hours. Bigger jobs like water heater installs might take half a day, but you'll have hot water by dinner.
Ready to get started?


We're usually on-site within an hour for emergency calls in Lake St Louis — sometimes faster since our shop is right on Catamaran Dr. If your basement's flooding or a pipe burst, call (314) 807-8460 and we'll head your way immediately.
No. We don't charge travel fees because we're based right here in Lake St Louis. You're not paying us to drive across the county — you're a few minutes from our shop.
Yes. Jim's a licensed master plumber in St Charles County, which covers Lake St Louis. We pull permits through Lake St Louis City Hall when required, and our work passes inspection the first time.
Water heater failures and sump pump issues, especially in older lakefront properties. The humidity near the lake is tough on equipment, and we replace a lot of 10–15 year old units that finally gave out. We also see a fair amount of galvanized pipe that needs replaced in homes built in the 80s and 90s.
We're open 24/7, including weekends and holidays. Plumbing problems don't take days off, and neither do we. Call anytime and you'll get the same response and the same pricing.
You can reach us at (314) 807-8460 or email us at [email protected] for more information — we’re always happy to help.