Cast Iron Pipe Replacement Jacksonville FL
Your Old Cast Iron Has Likely Already Failed Inside
If your Jacksonville home was built between 1950 and 1975, the original cast iron drain and sewer lines running under your slab are now 50 to 75 years old. These pipes were built to last 50 years — and most have hit that limit. The problem is that cast iron fails from the inside out, so pipes that look fine from the outside can be corroded hollow shells that are barely holding together.
At RiverCity Plumbing, we begin every cast iron evaluation with a high-definition camera inspection so you can see exactly what’s happening inside your pipes — no guessing, no upselling, just the facts. From there, we recommend the most appropriate solution: targeted lining, partial replacement, or complete conversion to PVC.
Why Cast Iron Fails Faster in Jacksonville
Bottom-Out Corrosion
Hydrogen sulfide gas from organic waste settles in horizontal pipe runs and attacks the bottom of cast iron from the inside. Jacksonville’s warm climate accelerates bacterial activity, speeding this process dramatically compared to northern climates.
Acidic Sandy Soil
Jacksonville’s sandy, acidic soil attacks cast iron pipe exteriors simultaneously. Pipes deteriorate from both the inside (hydrogen sulfide) and the outside (soil acidity), leaving a narrow window between first symptoms and complete failure.
Live Oak Root Intrusion
As cast iron joints corrode and open, live oak tree roots — common throughout Arlington (32211), Riverside (32205), and San Marco (32207) — find their way inside, accelerating collapse and causing persistent sewage backups.
Heavy Scale Buildup
Jacksonville’s 15.3 GPG hard water deposits calcium and mineral scale inside cast iron over decades. Scale narrows the effective pipe diameter, causing slow drains that get mistaken for simple clogs — until the pipe fails entirely.
Cast Iron Replacement Services
Camera Inspection & Assessment
High-definition camera inspection of all cast iron drain lines. We map the extent of corrosion, identify root intrusion, and locate partial vs. full-collapse sections before recommending any work.
Trenchless Pipe Lining (CIPP)
Cured-in-place pipe lining installs a resin-saturated sleeve inside the existing cast iron, creating a new smooth PVC-equivalent pipe without breaking your floors. Ideal for structurally intact pipe with interior corrosion.
Partial Section Replacement
When only specific sections have failed, we open targeted areas and replace the deteriorated cast iron with PVC, connecting to the remaining sound pipe. Cost-effective when most of the system is still viable.
Full System Replacement to PVC
Complete removal of all cast iron under the slab and conversion to Schedule 40 PVC. The definitive long-term solution for homes with widespread corrosion. PVC carries a 50-year design life with no corrosion risk.
Descaling Before Replacement Decision
When heavy mineral scale is obscuring the true pipe condition, we descale first to get a clear camera view. Sometimes descaling reveals the pipe is sound enough for lining — saving you from unnecessary replacement.
Emergency Cast Iron Failure
Complete pipe collapse creates a sewage emergency. We provide same-day emergency response for failed cast iron — temporary bypass lines to restore drain function while a permanent replacement plan is arranged.
Replace vs. Line: How We Decide
Trenchless Lining Is Right When:
- Pipe walls still have structural integrity
- No sections have fully collapsed
- Interior corrosion is moderate (not bottom-out)
- Joints are intact without major offset
Full Replacement Is Required When:
- Bottom-out corrosion has perforated the pipe
- Pipe sections have collapsed or separated
- Major root intrusion has displaced joints
- Active sewage leak under the slab
Is Your Cast Iron Failing?
Camera inspection is the only way to know for certain. We’ll show you exactly what’s in your pipes.
Related Services
- → Cast Iron Descaling
- → Sewer Line Jetting
- → Sewer Line Cleaning
- → Hydro-Jetting
- → Drain & Sewer Services
- → Riverside & Avondale
Our Process
From Camera to Clear Pipes
Camera Inspection & Condition Report
We run a high-definition camera through all cast iron drain lines and record the footage. You receive a condition report showing exactly which sections are sound, which have interior corrosion, and which have failed — before we recommend any work.
Replacement Plan & Upfront Quote
Based on the camera findings, we present a clear plan: which sections need lining, which need open replacement, and what the total cost will be. No scope creep, no surprises added mid-job.
Replacement or Lining Installation
For open replacement: we open the slab at minimum necessary access points, remove failing cast iron, and install Schedule 40 PVC with proper slope and cleanout access. For lining: we clean, dry, and cure the CIPP liner inside the existing pipe structure.
Post-Work Camera Verification & Restoration
We run a final camera inspection to document the completed work, confirm proper flow, and provide you with footage for your records. Concrete patching and floor restoration are included in our scope.
Your Questions
Don’t Wait for a Sewage Emergency
Cast iron failure is predictable — and preventable. A camera inspection today protects your home tomorrow.