Drain Line Replacement & Yardline Installation for an Older Austin Home

When an Austin homeowner started experiencing recurring backups and failing drains in their mid-century Windsor Park home, they called Radiant Plumbing & Air Conditioning for a long-term solution. Our team completed a full drain line replacement, rebuilt underground connections, and installed a new yardline tied directly into the concrete tap—restoring the home’s plumbing system from the ground up.

Job Overview

  • Location: Austin, TX (Windsor Park)
  • Client Type: Residential homeowner
  • Scope: Full drain system rebuild, including removal of deteriorated cast-iron, new PVC installation, bathroom drain tie-ins, and complete yardline replacement
  • Work Performed: Tunnel piping replacement, new mainline routing, laundry and kitchen line tie-ins, and concrete tap connection sealed with hydraulic cement
  • Why It Mattered: The original cast-iron system had deteriorated, causing backups, slow drainage, and structural risks. Replacing the system ensured proper flow, reduced the risk of future failures, and brought the home up to modern plumbing standards.

What We Found

During the initial inspection, our drain specialists uncovered widespread deterioration in the home’s underground cast-iron piping. Several bathroom lines were failing, the main drain needed rerouting, and the yardline leading to the tap was no longer structurally sound. Inside the tunnel, the existing supports were no longer reliable, and asbestos in the work area required safe removal before continuing.

These issues are common in older Austin neighborhoods where original plumbing is now decades beyond its intended lifespan.

The Solution

Radiant’s Austin drain team completed the restoration in multiple phases to ensure quality, safety, and proper alignment with Austin inspection standards.

Interior Repair & Tunnel Work

• Removed most of the deteriorated cast-iron piping
• Preserved two structural hubs needed for bathroom tie-ins
• Upgraded the shower line to 2″ PVC for better flow
• Installed secure hangers throughout the tunnel to support the new system
• Rebuilt bathroom connections and tied each fixture into the new mainline

Yardline Installation & Exterior Work

• Exited the tunnel and installed a new exterior cleanout
• Replaced the entire yardline using durable PVC
• Tied in both laundry and kitchen sink lines for a fully integrated system
• Connected the new line to the concrete tap and sealed it with hydraulic cement
• Installed a test tee near the tap for inspection access
• Ensured the entire system met requirements for the upcoming city inspection

Each phase was documented with site photos and homeowner updates to keep the process transparent and stress-free.

Photo Highlights

Sewer pipes under a home connecting to the main line branch Marked and level sewer line pipes from the main line to the home A plumbing trench with newly installed and partially filled hole New PVC pipe installed in plumbing trench line A newly installed PVC yardline (large white pipe) running through the trench. The vertical cleanout pipe attached to the main horizontal drain, up close where the house pipes connect

The Results

With the new PVC system in place, Jeremy’s home now benefits from stronger flow, reduced risk of backups, and far more reliable long-term performance. The secure hydraulic cement tap connection protects the home from leaks, and the new cleanout and test tee make future maintenance straightforward. The project finished on schedule and is ready for city inspection.

Another successful drain restoration completed by the Radiant Austin team — bringing modern plumbing reliability to an older Austin home.

Trusted Drain Experts in Austin

Radiant Plumbing & Air Conditioning has served Austin homeowners since 1999 with expert drain repairs, replacements, and underground plumbing solutions. From full system rebuilds to advanced diagnostics, our licensed specialists deliver dependable results backed by experience, transparency, and care.

Have drain issues or slow plumbing? Schedule online to get your Austin drain cleaning or repair and see why homeowners trust Radiant for long-term solutions.

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