Published: February 27, 2026 • 7 min read

Why Plano Homes Built in the 1970s-1990s Need Cast Iron Pipe Inspections

A large share of Plano neighborhoods expanded quickly between the 1970s and 1990s. That means many homeowners are now living with cast iron drain systems that are 30-50 years old. Even if drains still work, corrosion can be developing inside the line and you may not notice until backups or slab leaks begin.

Why this era matters in Plano

• Many homes from this period still have original cast iron under the slab.
• Soil movement in North Texas can stress already aging sewer lines.
• Interior corrosion narrows pipe diameter and leads to repeated slow drains.
• Waiting for a full failure usually means emergency pricing and restoration costs.

High-priority Plano ZIP codes

We see recurring cast iron concerns in and around West Plano, East Plano, Willow Bend, Deerfield, Legacy West, and Downtown Plano.

When to schedule a camera inspection

• You have recurring clogs in multiple fixtures.
• You notice sewer odor near drains or in the yard.
• Your home was built before 1995 and has never had a line inspection.
• You are planning a remodel and want to avoid rework later.