MGA Plumbing is a top-rated O'Fallon plumbing company offering residential and commercial plumbing services around the clock. From a toilet overflowing at midnight to a planned water heater replacement, our O'Fallon plumbers show up fast and fix it right.
Searching for a plumber open now in O'Fallon? Our dispatch team answers around the clock and sends the closest available O'Fallon plumber straight to your door — usually within the hour for emergencies.
Whether you own a home near Hampton Park or run a business in O'Fallon, you get the same fast response, the same clear pricing and the same guarantee. Residential plumber or commercial plumber — MGA Plumbing does it all in O'Fallon.
Hampton Park, Villages at Dardenne, Laurel Park, Bryan Road, Brookmount, Falls of Mayfair, Wyndgate, Main Street O'Fallon and every other neighborhood in O'Fallon.
Plumber open now in O'Fallon? Yes. Our 24 hour plumbers respond to burst pipes, sewer backups, water leaks, gas leaks, frozen pipes and no-hot-water calls around the clock with no overtime charges.
Every service below has a dedicated O'Fallon page with local details, pricing information and reviews.
24/7 emergency plumbing for burst pipes, floods, backups and no-water situations.
Round-the-clock plumbers available nights, weekends and holidays.
Fast burst and cracked pipe repair to stop flooding and water damage.
Find and fix hidden and visible water leaks before they ruin your home.
Safe thawing and repair of frozen and freeze-damaged pipes every Missouri winter.
Emergency gas leak detection and repair for homes and businesses.
Professional drain cleaning for kitchen, bathroom, laundry and floor drains.
Stubborn clog removal with cables, augers and hydro jetting — no harsh chemicals.
High-pressure water jetting that scours grease, roots and scale from pipes.
Diagnosis and repair of cracked, collapsed, root-invaded and offset sewer lines.
Full sewer line replacement using trenchless or open-trench methods.
No-dig pipe lining and pipe bursting that saves your lawn and driveway.
Video pipe inspection that shows exactly what's wrong before you pay for repairs.
Emergency sewer backup clearing and cleanup to protect your home and health.
Same-day repair for gas, electric and tankless water heaters of every brand.
Fast, clean water heater replacement with removal and haul-away of the old unit.
Professional installation of tank and tankless water heaters, sized for your home.
Endless hot water and lower bills with properly sized tankless systems.
Fast diagnosis when the hot water stops — elements, thermostats, gas valves and more.
Electronic and acoustic leak detection that finds hidden leaks without tearing up your home.
Repair of leaking copper, PEX, galvanized and PVC pipes anywhere in the home.
Main water line repair and replacement from the meter to your home.
Locate and repair leaks under concrete slabs with minimal demolition.
Whole house repipe with PEX or copper to end chronic leaks and bad water.
Repair of running, leaking, clogged and overflowing toilets.
Installation of new water-saving, comfort-height and ADA toilets.
Fix drips and leaks or install new kitchen, bath and outdoor faucets.
Repair jammed or leaking disposals, or install a new quiet, powerful unit.
Repair of leaking shower valves, low pressure, drips and clogged shower drains.
Keep your basement dry with sump pump repair, replacement and battery backups.
Whole-home water softeners and filtration for Missouri's hard water.
Annual backflow preventer testing, certification and repair.
Safe gas line installation for ranges, dryers, grills, fireplaces and generators.
Whole-home plumbing inspections for buyers, sellers and preventive maintenance.
Commercial plumbers for restaurants, offices, retail, multifamily and industrial sites.
Complete home plumbing repair, replacement and installation services.
Most repairs are completed in a single visit.
Nights, weekends and holidays — a real plumber, not an answering machine.
Homes, restaurants, offices, multifamily and retail.
Flat-rate quotes approved by you before work begins.
Shoe covers, drop cloths and a thorough clean-up every time.
We know O'Fallon's homes, soil, water and codes.
Here's why we're rated the top plumber in O'Fallon by local homeowners and businesses.
“Called at 10pm with water pouring through the kitchen ceiling. The plumber was at our O'Fallon house in under an hour, shut it off, and had the pipe fixed before midnight. Price was exactly what they quoted.”
“Hydro jetting fixed a clog that three snakings couldn't. They showed me the camera footage before and after. Great experience.”
“Hydro jetting fixed a clog that three snakings couldn't. They showed me the camera footage before and after. Great experience.”
Our plumbers cover all of O'Fallon and surrounding communities in the St. Louis Metro area, including:
Our O'Fallon customers consistently rate us 5 stars for speed, honesty and quality. Read the reviews on this page and give us a call to experience it yourself.
We provide free estimates on installations and replacements, and a firm upfront price on repairs after diagnosis. There's never a surprise on the final bill.
No. MGA Plumbing charges the same flat rates 24/7. You'll approve the exact price before any work begins.
For emergencies we dispatch the closest available O'Fallon plumber immediately — often within the hour. Standard appointments are usually available the same day. Call (888) 480-9811.
Yes. MGA Plumbing plumbers live and work in the St. Louis Metro area and serve O'Fallon plus nearby St. Louis, St. Charles and St. Peters.
A general home inspection doesn't look inside the sewer line. A $10,000 surprise might be waiting.
An honest comparison of cost, lifespan, hot water capacity and energy use.
The steps you take in the first five minutes can save thousands in water damage.
Same day plumber · Affordable plumber · 24/7 emergency service in O'Fallon, MO
Call (888) 480-9811