St. Louis Cast Iron Replacement Services
Cracked cast iron pipes don’t wait, and neither should you. DeClue Plumbing provides top-of-the line home cast iron pipe replacement services in St. Louis, MO.
"I've called these guys twice now, once for a burst pipe in January and once to repipe part of my basement, and they've been outstanding both times. They showed up fast, didn't try to upsell me on stuff I didn't need, and the pricing was fair. There aren't many contractors I'd actually recommend to my neighbors, but these guys make the short list."
Mike Harrington — Affton, MO
Get Your Pipes Replaced Before It’s Too Late
Your home is your greatest asset, and it deserves a system that won’t fail. DeClue Plumbing provides the best quality cast iron pipe replacement services to homeowners and property managers in the St. Louis area. We see and know the signs of failing cast iron material and aging drain and sewer lines, from cracking and leaking joints to rust and root intrusion.
Cast Iron Pipe Replacement and Sewer Line Repair Done Right
Customers love DeClue Plumbing because we put our heart in everything we do. Our assessments are honest, pricing is upfront and fair, and we work with the best-quality same-day materials. Trust us—we know a thing or two about laying pipes.
Give Us a Call About Your Residential Sewer Line Repair Needs
Don’t let a cracked pipe turn into a flooded kitchen floor. DeClue Plumbing makes the process easy by giving customers a straight-up estimate before we even touch anything. Reach out for a free bid today.
DeClue Is Trusted By St. Louisans Everywhere
With over 15 years of service in The Lou, DeClue Plumbing is trusted by many for replacing cast iron sewer pipe, toilet services, and water heater support. We value honesty, transparency, and hard work.
Locally-Sourced Materials
1-Year Labor Warranty
Residential and Commercial Experience
Competitive Pricing
A Clean Slate for a Clayton Apartment Building
An upscale, multi-unit Clayton facility had a cracked cast iron pipe that allowed sewage to leak through the walls of at least three tenant units. Bathroom wallpapers were stained with waste, causing a major sanitation emergency that made the units uninhabitable and put the building owner at serious risk of code violations and tenant disputes.
The DeClue Plumbing team replaced the failing cast iron pipe from the basement all the way to the third floor, upgrading the entire thing with modern PVC. We reconnected six toilets and six sinks across all of the affected units, all while making sure we had the necessary permits. We coordinated it all, from the drywall repair to all the final fixture hookups.
Our clients got back to luxury living, and the building owner’s final inspection passed without any issues. They avoided major displacement and code violation penalties all while avoiding having to deal with multiple contractors.
Frequently Asked Questions About Cast Iron Pipe Replacement
Can freezing temperatures damage cast iron pipes?
Cold weather is less of a direct threat to cast iron than it is to copper, but it’s not off the hook entirely. What makes cast iron dangerous is what happens over time. During hard St. Louis winters (and Midwestern springs), constant freeze and thaw cycles cause the ground to shift and settle, which puts pressure on your pipes.
If you’ve come through a hard freeze and notice reduced water flow or unexplained moisture, call DeClue Plumbing for an inspection before a cracked pipe turns into a flooded room.
PVC, Copper, or PEX—What’s the difference? Should I care?
The pipe material in your home matters more than most people think. Here’s a quick breakdown:
- Copper is durable, long-lasting, and resistant to bacteria. It’s been the industry standard for decades and holds up well under normal conditions. The downsides? It’s the most expensive option, requires skilled installation, and is more vulnerable to freezing than modern alternatives. In many cases, the risk of copper theft is also worth factoring in.
- PEX (crosslinked polyethylene) is a flexible plastic piping that is easier and faster to install, resistant to freezing, and more affordable than copper. PEX Type A specifically is among DeClue Plumbing’s preferred upgrade material for many residential installations.
- CPVC is a rigid plastic pipe that handles hot water well and is less expensive than copper. However it can become brittle over time, especially in older homes.
And if your place still has galvanized steel pipes, you need a replacement, ASAP.
Tell me more about the signs that cast iron pipes need to be replaced.
Some other common signs include slow or gurgling drains, recurring clogs, sewage odors inside the home, wet spots in the yard above sewer lines, and visible cracks or joint separation. In lots of homes, tree root intrusion from mature trees is one of the leading causes of sewer line failure.