STL Plumbing Pros provides comprehensive plumbing repair services throughout the St. Louis metropolitan area — from minor faucet leaks and running toilets to complex sewer line replacements and whole-house repiping. Our licensed plumbers service homes and businesses across St. Louis City, St. Louis County, and surrounding communities including Clayton, Kirkwood, Florissant, Chesterfield, and Webster Groves. Whether you're dealing with a hidden leak behind drywall, a water heater that's stopped producing hot water, or a sewer lateral that needs camera inspection and repair, we diagnose the actual problem, quote the work upfront, and complete most repairs same-day. Every repair is backed by our workmanship guarantee and performed by experienced, background-checked plumbers who carry the parts and equipment to handle the job in a single visit.
Our Plumbing Repair Services
Every plumbing problem is different. Select the service that matches your situation, or call us and we'll help you figure out what you need.
Pipe Repair & Leak Detection
From pinhole leaks in copper lines to corroded galvanized sections, we diagnose and repair pipe failures throughout your home. Electronic leak detection locates hidden leaks inside walls and under slabs without unnecessary demolition.
View Pipe Repair & Leak Detection detailsSewer Line Services
Cracked laterals, root intrusion, and collapsed clay pipe are common in older St. Louis neighborhoods. We provide sewer camera inspection, conventional repair, trenchless pipe lining, and full sewer line replacement.
View Sewer Line Services detailsBathroom Plumbing
Toilet repair and installation, shower valve replacement, faucet repair, and bathtub installation. Whether it's a running toilet, a dripping shower, or a complete bathroom renovation, we handle the plumbing.
View Bathroom Plumbing detailsKitchen Plumbing
Kitchen sink repair, garbage disposal installation, dishwasher hookup, and faucet replacement. We service all kitchen plumbing fixtures and connections — including under-sink supply lines and drain assemblies.
View Kitchen Plumbing detailsDrainage Services
Professional drain cleaning, clogged drain repair, hydro jetting, and video drain inspection. We clear blockages in kitchen drains, bathroom drains, floor drains, and main sewer lines using commercial-grade equipment.
View Drainage Services detailsWater Heater Services
Tank and tankless water heater repair, installation, and replacement. If your water heater is leaking, not heating, or past its lifespan, we diagnose the issue and provide same-day service when possible.
View Water Heater Services detailsGas Line Services
Licensed gas line installation, repair, and leak detection. From new appliance hookups to gas line upsizing for tankless water heaters, all work is pressure-tested and permitted per St. Louis code.
View Gas Line Services detailsEmergency Plumbing — 24/7
Burst pipes, sewer backups, gas leaks, and flooding don't wait for business hours. Our emergency plumbers respond around the clock with priority dispatch — typically arriving within 60 minutes across the St. Louis metro.
View Emergency Plumbing — 24/7 detailsIs This Your Problem? Find Your Plumbing Issue
Noticing something off with your plumbing? Find the symptom below.
| Symptom | Most Likely Cause | Action |
|---|---|---|
| Sudden drop in water pressure | Galvanized pipe narrowing from corrosion or internal break | Call for inspection |
| Rust-colored or discolored water | Corroding galvanized pipe or failing anode rod in water heater | Call — may indicate pipe replacement needed |
| Damp spots on walls, ceilings, or floors | Hidden leak behind drywall or above ceiling | Call immediately — water damage worsens fast |
| Unexplained spike in water bill | Hidden leak in supply line — even small drips waste hundreds of gallons | Call for leak detection |
| Water meter moving with all fixtures off | Active leak somewhere in the supply system | Call — turn off main if increase is rapid |
| Low hot water pressure only | Galvanized hot water pipes partially closed from corrosion | Call for pipe inspection or replacement |
| Soft spots or buckled flooring near plumbing | Chronic hidden leak causing subfloor or slab damage | Call immediately |
| Musty smell in walls or basement | Hidden leak feeding mold growth | Call — mold remediation cost grows quickly |
Why St. Louis Homeowners Trust Us
Licensed, Insured & Background-Checked
Every plumber on our team is a licensed professional with full liability insurance and a clean background check. We're not sending a handyman — we're sending a plumber who's done this work thousands of times.
Same-Day Service, 24/7 Emergency Response
Most standard repairs are completed the same day you call. For emergencies — burst pipes, sewer backups, gas leaks — we dispatch around the clock with typical arrival within 60 minutes.
Upfront Pricing — No Surprises
We diagnose the problem, explain what needs to be done, and quote the price before any work starts. If the scope changes, we discuss it with you first. No hidden fees, no inflated hourly charges.
Local St. Louis Knowledge
We know the galvanized pipe issues in pre-1970 homes, the clay sewer laterals common in South City, and the city/county sewer lateral repair programs that can offset your costs. Local expertise saves you money.
Honest Recommendations
We'll tell you when a repair makes sense and when replacement is the smarter investment. Our goal is a long-term fix, not a repeat service call — which is why St. Louis homeowners keep coming back and referring their neighbors.
Why Pipes Fail in St. Louis Homes — The Galvanized Steel Problem
Galvanized steel pipes were the residential plumbing standard from roughly the 1920s through the early 1970s. In St. Louis, a city with a high concentration of pre-WWII and mid-century housing, galvanized supply pipes are still in service in a significant portion of the housing stock — particularly in neighborhoods like the Central West End, Soulard, Lafayette Square, Tower Grove South, and much of North City where homes were built between the 1910s and 1960s.
How galvanized pipe fails
Galvanized steel pipe is coated with a thin layer of zinc on the interior, which acts as a sacrificial barrier against corrosion. Over time — typically 40–50 years — that zinc layer wears down, leaving bare steel exposed to water. The steel begins to rust from the inside out, and corrosion products accumulate on the pipe walls with deposits from St. Louis's hard water. The interior diameter narrows progressively. Water pressure drops. Eventually a section fails.
Partial repiping vs. whole-house repiping
Not every pre-1970 St. Louis home needs a full repipe immediately. In many cases, the galvanized supply pipes on the hot side have been replaced — during a water heater replacement, a bathroom renovation, or a prior leak repair — while the cold side remains original. A licensed plumber can inspect accessible sections and give you a realistic picture of what's actually left in the walls before recommending a scope of work. Learn more about our repiping services.
What Does Plumbing Repair Cost in St. Louis?
| Service | Typical Price Range |
|---|---|
| Standard leak repair (fixture or supply line) | $150 – $350 |
| Pipe section replacement | $200 – $600 |
| Leak detection (non-invasive electronic) | $150 – $400 |
| Water pressure diagnosis & repair | $100 – $300 |
| Whole-house repiping (galvanized → copper or PEX) | $4,000 – $12,000 |
| Sewer line repair | $1,500 – $8,000+ |
Not sure what your plumbing repair will cost? Call for a free estimate — describe the symptoms and we'll give you a realistic range before any work starts.
What St. Louis Homeowners Say
"Water pressure had been dropping for years. Got a partial repipe on the hot side and the pressure difference is like night and day. Wish I'd done it sooner."
"Water bill jumped $60 in a month. Tech found a leaking supply line inside the wall — repaired the section without taking out the whole wall. Professional service."
"Pinhole leak in a copper pipe — repaired same day. Plumber also flagged an adjacent galvanized line that was getting close. Really appreciated the transparency."
Related Services
Plumbing Repair Service Areas
Plumbing Repair FAQ for St. Louis Homeowners
Need Plumbing Repair in St. Louis?
Most plumbing problems start small — and they're cheaper to fix early. Call now for same-day plumbing repair across the St. Louis metro. A licensed plumber diagnoses the actual problem and quotes the work before starting.
314-237-0332