Plumber prices in Saint Louis, MO
| Project | Time | Typical cost | Range |
|---|
| Standard service call (diagnosis + minor repair) |
1–2 hours |
$157 |
$129 – $189 |
| Drain cleaning (sink, tub, or floor drain) |
30–90 min |
$92 |
$75 – $110 |
| Single-fixture leak repair (faucet, supply line) |
1–2 hours |
$166 |
$136 – $200 |
| Toilet replacement (you supply fixture) |
2–3 hours |
$192 |
$158 – $231 |
| Water heater replacement (40–50 gal tank) |
4–6 hours |
$1,119 |
$918 – $1,343 |
| Sewer line repair (spot repair, not full replace) |
1–2 days |
$1,795 |
$1,472 – $2,154 |
| Whole-house re-pipe (1500 sq ft, PEX) |
3–5 days |
$5,057 |
$4,147 – $6,069 |
Local rate = BLS national mean × 2.4 markup × (MO COL 88.5/100). Materials adjusted by the same factor.
What a plumber in Saint Louis actually does
A licensed plumber handles anything that touches the pressurized water supply, the DWV (drain-waste-vent) system, the gas line, or fixed gas-fired appliances like water heaters and pool heaters. A typical service call begins with a 15–30 minute diagnosis: the plumber will run faucets, check water pressure at a hose bib (40–80 PSI is normal), inspect supply lines and shut-off valves, and — if the call involves a drain — usually run a snake or scope a camera before quoting the repair. Bigger jobs (re-pipes, sewer-line work, water-heater swaps) require a written scope, a permit pulled in the homeowner's name, and at least one rough/final inspection by the local building department.
Questions to ask before you hire in MO
- Are you licensed in this state, and what is your license number?
- Do you carry general liability and workers' comp? (Get the policy number, not just a "yes.")
- Is the price flat-rate or hourly, and what does it include — diagnosis, parts, disposal, permit?
- If the job grows in scope, how is the change order priced and approved?
- What is the warranty on labor and on the manufacturer parts?
- Will you pull the permit, or do you expect me to?
A plumber who quotes a major job sight-unseen, refuses to put the price in writing, or asks for more than 30% up front. Door-to-door "I noticed something wrong with your house" pitches after a storm are almost always scams.
6 licensed plumbers in Saint Louis
Patriot Water Works
📍 5929 Park Dr, Saint Louis, MO 63155
★ 4.0 / 5 · 315 reviews · 36 years in business
✓ Licensed ✓ Insured BBB A+ 24/7 Emergency 36 yrs
Specialties: Leak repair, Sump pump, Sewer line repair, Toilet replacement
Green Pipe Pros
📍 6539 Cherry Ave, Saint Louis, MO 63101
★ 4.4 / 5 · 100 reviews · 36 years in business
✓ Licensed ✓ Insured BBB A 24/7 Emergency 36 yrs
Specialties: Leak repair, Sewer line repair, Drain cleaning, Faucet install, Pipe burst repair
Reliable Plumbing
📍 5602 Magnolia Pl, Saint Louis, MO 63102
★ 4.9 / 5 · 338 reviews · 11 years in business
✓ Licensed ✓ Insured BBB A 11 yrs
Specialties: Sump pump, Leak repair, Re-piping
Atlantic Water Works
📍 8516 Walnut Pl, Saint Louis, MO 63155
★ 4.6 / 5 · 407 reviews · 27 years in business
✓ Licensed ✓ Insured BBB A 24/7 Emergency 27 yrs
Specialties: Drain cleaning, Leak repair, Sump pump
Quality Pipe Masters
📍 4243 Hill Ave, Saint Louis, MO 63101
★ 3.8 / 5 · 356 reviews · 9 years in business
✓ Licensed ✓ Insured BBB A- 24/7 Emergency 9 yrs
Specialties: Water heater install, Sump pump, Leak repair, Garbage disposal, Drain cleaning
Saint Louis Plumbing
📍 897 Bay Blvd, Saint Louis, MO 63102
★ 4.9 / 5 · 241 reviews · 24 years in business
✓ Licensed ✓ Insured BBB A 24/7 Emergency 24 yrs
Specialties: Sump pump, Toilet replacement, Garbage disposal, Re-piping, Leak repair
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Seasonal plumbing checklist for Saint Louis homeowners
Spring
- Run every faucet, shower, and outdoor spigot for 60 seconds; watch for slow drains, drips at the base, and drops in pressure.
- Inspect the water heater anode rod if your unit is over 5 years old; replace if more than 50% consumed.
- Test the sump pump by pouring a 5-gallon bucket of water into the pit; the pump should activate and the pit should empty within 30 seconds.
- Re-aim sprinklers and clear hose-bib vacuum breakers before the irrigation season.
- Snake or enzyme-treat slow drains before summer guest season.
Fall
- Disconnect garden hoses and shut off exterior hose-bib valves before the first hard freeze.
- Insulate any exposed pipes in crawlspaces, garages, or unheated basements with foam sleeves.
- Drain and winterize irrigation lines (most municipalities and HOAs require this by mid-November).
- Flush the water heater tank to clear sediment that reduces efficiency.
- Test main water shut-off valve so you can find it fast in an emergency.
Winter
- Open cabinet doors under sinks on outside walls during cold snaps to let warm air reach pipes.
- Let faucets on outside walls drip overnight when temperatures drop below 20°F.
- Maintain at least 55°F indoors even when the home is unoccupied.