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4 services · St. Louis

Drains & sewer in St. Louis, MO

A single slow sink is usually a local clog a plumber can clear in one visit. Several drains backing up at once, gurgling toilets or water at a basement floor drain point to the main sewer line, which may need cleaning, a camera inspection and sometimes repair.

  • Licensed local plumbers
  • The problem explained before work starts
  • Price agreed before the job begins
Plumber working on the drain pipes under a sink

Drains & sewer services in St. Louis

Local conditions

Drains & sewer in St. Louis: what's different

Century-old clay laterals in Soulard, Tower Grove and Lafayette Square crack and collect roots. MSD's Project Clear works on reducing overflows and basement backups.

The City of St. Louis is separate from St. Louis County, so permit offices differ by address.

A camera inspection shows whether a repeat clog is roots, a cracked pipe or a sewer backup.

Brick homes on narrow lots often have laterals under gangways and rear yards, which affects access. Permits differ between the City of St. Louis and the county.

Water and sewer in St. Louis
The City of St. Louis Water Division supplies water; the Metropolitan St. Louis Sewer District (MSD) handles sewers.
Permits in St. Louis
Plumbing permits inside the city are issued by the City of St. Louis Building Division; St. Louis County has its own office.

St. Louis housing and plumbing

Brick homes and flats from the late 1800s and early 1900s in Soulard, Tower Grove and Lafayette Square typically have basements and old drains.

Other St. Louis conditions that affect plumbing

  • Old laterals: Century-old clay laterals crack and collect roots.
  • Basement drains: Heavy rain backs up basement floor drains.
  • Frozen pipes: Cold snaps freeze pipes in brick exterior walls.
  • City vs. county: The City of St. Louis is separate from St. Louis County, so permit offices and some utilities differ depending on your address.

Neighborhoods and ZIP codes

Plumbers on Thawline cover St. Louis and City of St. Louis, including Soulard, Tower Grove, The Hill, Central West End, Lafayette Square, Dogtown. ZIP codes: 63101 · 63102 · 63103 · 63104 · 63105 · 63106.

When to call a plumber in St. Louis

  • Water backing up in the tub or shower when a toilet flushes
  • Several fixtures draining slowly at the same time
  • Water or sewage at a basement floor drain
  • Gurgling from drains or toilets
  • Sewer smell inside or a soggy patch in the yard
  • The same clog returning within weeks of being cleared

How these problems start and how to choose between repair options is covered in the drains & sewer guide.

Drains & sewer questions in St. Louis

Who issues plumbing permits in St. Louis?

The City of St. Louis Building Division inside the city; St. Louis County has its own office.

Are chemical drain cleaners safe to use?

They can damage older pipes and fixtures, and they make the job hazardous for the plumber if they don't work. A plunger or a drain snake is safer for a single slow drain.

More plumbing in St. Louis

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