Missouri’s plumbing ranges from century-old brick homes in St. Louis to suburban Kansas City basements and rural Ozark wells. St. Louis has a large stock of older homes with cast iron drains and aging laterals, and much of the city is served by combined sewers.
Freeze-thaw winters, hot humid summers and limestone karst in the Ozarks — with hard water and sinkholes — all affect plumbing work.
Plumbing services we provide in Missouri
These are the services Missouri homeowners call about most often, based on the conditions above.
Sewer Line Repair
Sewer line repair fixes damage to the building sewer or lateral, the pipe that carries wastewater from a house to the public sewer main or septic system.
Sewer Line Repair details →
Drain Cleaning
Drain cleaning is the mechanical removal of buildup, debris or roots from drain and waste pipes so water flows freely to the sewer or septic system.
Drain Cleaning details →
Sump Pump Repair
Sump pump repair restores a basement or crawl space pump that collects groundwater in a pit and pumps it away from the foundation.
Sump Pump Repair details →
Water Heater Repair
Water heater repair restores a tank or tankless water heater to safe, normal operation by fixing components such as thermostats, heating elements, burners, valves and controls.
Water Heater Repair details →Local conditions that affect plumbing in Missouri
Old St. Louis housing
Cast iron stacks, clay laterals and galvanized supply lines are common in older neighborhoods.
Combined sewers
Heavy storms can surcharge combined sewers and back water into basements.
Ozark karst
Hard water and ground movement affect wells and buried lines.
City plumbing guides in Missouri
Plumbing in Kansas City
Expansive clay soils, basements, combined sewers in the older core under the Smart Sewer program, hard water and big seasonal swings.
Kansas City guide →
Plumbing in St. Louis
Brick homes with basements, combined sewers under MSD Project Clear, lead service lines in older housing, clay laterals and hard river water.
St. Louis guide →Plumbing emergency in Missouri?
- Shut off the main water valve if water is leaking or a pipe has burst.
- Keep away from water near outlets, cords or the electrical panel.
- If sewage is backing up, stop using every drain in the house.
- If you smell gas, leave the building and call the gas utility or 911 from outside.
Missouri plumbing questions
Who owns the sewer lateral in St. Louis?
Property owners are generally responsible for the lateral; St. Louis-area programs have at times helped with lateral repair costs. Check current programs with your sewer district.
Is Missouri water hard?
Many areas, especially in the Ozarks, have hard water from limestone, which scales water heaters and fixtures.
Is Missouri water hard?
Much of it is, especially groundwater in the Ozarks, which passes through limestone. River-supplied systems like Kansas City and St. Louis are moderately hard.
Why do older Missouri cities have basement backups?
Kansas City and St. Louis both have combined sewers in older areas that surcharge in heavy rain, and long-term programs are under way to reduce overflows. A backwater valve protects individual basements.
Can karst geology affect Missouri plumbing?
Yes. In the Ozarks and other karst areas, sinkholes and ground movement can crack buried lines, and contamination can travel quickly to wells, so testing matters.
Does Missouri have lead service lines?
Many older homes do, especially in St. Louis and Kansas City. Utilities are inventorying service lines; check your address before planning work.
Are septic systems common in Missouri?
Yes, across rural Missouri. Rocky Ozark soils and karst can limit drainfield options, so design and maintenance matter.
How do I protect Missouri pipes in winter?
Insulate exposed pipes, disconnect hoses and keep heat on during cold snaps; pipes in crawl spaces and garages are most vulnerable.
