Cast Iron Pipe Repair in St. Louis

Repair solutions for aging cast iron pipes under your basement slab.

Your Trusted Cast Iron Pipe Repair Experts in St. Louis

Mike LaFata Plumbing specializes in cast iron pipe repair, including cast iron pipes failing under a basement slab.

If you’re noticing slow drains, a sewage smell in the basement, or a damp spot on the floor, it may be a failing cast iron pipe beneath the slab. This is a job for a specialist, and it doesn’t always mean tearing up your whole basement floor to fix it.

Cast Iron Pipe Repair Services

A single dripping faucet can waste more than 3,000 gallons of water per year—and drive up your bill. Early warning signs include:

Cast-Iron Drain Repair & Spot Replacement – Fix corroded or cracked sections without replacing the whole line
Cast Iron Pipe Repair Under Basement Slab – Targeted slab-opening repair with minimal slab disruption
Full Cast Iron Replacement – Upgrade aging cast iron to PEX or copper when repair isn’t enough

Not sure if your cast iron pipe needs repair or full replacement? Ask our Experts Today! Contact us online or call 314-623-5261 to schedule a cast iron pipe inspection.

Why Cast Iron Pipes Under Your Slab Fail

Cast iron drains installed before 1970 are reaching the end of their 50–100 year lifespan. Under a basement slab, that failure is invisible. Rust scales down the flow, hydrogen-sulfide corrosion thins the pipe wall from the inside, and a “small leak” can become a sewage backup or a cracked slab section before you ever see it coming.

Because digging up a finished basement floor is invasive and expensive, targeted repair for pipe lining or pipe bursting is the best option. Targeted repair uses a camera inspection to locate the failure, then we locate appropriate access points instead of breaking up large parts of the slab. For this type of repair, it’s worth getting a plumber who is specialized in this type of detection and repair.

Our 6-Step Cast Iron Pipe Repair Process

Camera Inspection & Diagnosis – Locate the failure point without guesswork
Permit & Site Prep – Pull permits and prep the work area
Repair or Replacement – Targeted slab opening to avoid unnecessary digging
Concrete Restoration – Broom-finish repour of opened slab
Camera Verification & Warranty – Confirm clear flow before we leave, backed by our workmanship warranty

Get In Touch Today!

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Why St. Louis Homeowners Trust Mike  Lafata Plumbing

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Licensed, insured, and local cast iron specialists

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Targeted repairs to avoid unnecessary digging

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Transparent, flat-rate pricing

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“We’re Not Happy Until You’re Happy”

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FAQs About Cast Iron Pipe Repair

How do I know if I have a cast iron pipe problem under my basement slab?

Common signs include slow or gurgling drains, a sewage smell in the basement, discolored water, recurring backups, or a damp or sagging section of the slab. A camera inspection confirms it.

Is targeted cast iron pipe repair always possible?

It depends on the pipe’s condition and access. Many cast iron repairs under a slab can be done with a targeted spot opening in the slab. We’ll confirm which applies after a camera inspection.

How long does cast iron pipe repair take?

Jobs requiring a slab opening and concrete restoration typically take a few days, depending on scope.

Can cast iron drain repair be done without breaking up my whole basement floor?

Yes. That’s the goal of targeted repair. We only open the slab at specific points where the repair needs to be done.

Schedule your cast iron pipe repair today!

Suspect a failing cast iron pipe under your basement slab? Contact us online or call for a professional camera inspection.