Plumbing Services in South Houston, TX | Done in One Trip

We Bring the Supply House to SoHo

• Cast Iron Sewer Line Failure

  The Problem: Cast Iron Sewer Line Failure

  The original sewer lines in South Houston are cast iron—standard in the 1940s-1960s. Cast iron was chosen because it was durable and readily available from nearby Houston foundries. But after 60+ years, the bottom of the pipe rusts out from the inside in a process called “channeling.”

  As the pipe corrodes, it develops rough edges that catch toilet paper and waste, causing constant backups. Eventually, the pipe collapses completely, allowing mud, tree roots, and even roaches or rodents to enter the sewer line from the soil.

  The Blackmon Solution:
  We use sewer camera inspections to verify the pipe’s condition and show you exactly what’s happening inside the line—rust channels, holes, root intrusion, or complete collapse. If the cast iron is failed (which it usually is after 60+ years), we replace it with durable Schedule 40 PVC that will last another 50+ years. We often use tunneling techniques to access and replace the line from the exterior, preserving your original hardwood floors and pier-and-beam foundation.

• Galvanized Steel Water Lines

  The Problem: Galvanized Steel Water Lines

  If your water pressure is low (especially in the shower), or your water looks rusty when you first turn on the tap in the morning, your steel water pipes are corroded from the inside. Galvanized steel pipe—standard in post-war homes—develops rust scale that narrows the inside diameter of the pipe over time. A pipe that started as 3/4-inch can be reduced to 1/4-inch after 60 years of corrosion.

  This dramatically reduces water flow and can cause fixtures to barely trickle. The rust also discolors your water and stains sinks, toilets, and laundry.

  The Blackmon Solution:
  We specialize in Whole-Home PEX Repiping for older South Houston homes. We replace the clogged galvanized steel pipes with flexible PEX piping that will never rust or corrode. PEX installation is faster than copper (typically 1-2 days for a full house) and restores full water pressure and clarity. We work carefully in homes with original hardwood floors, plaster walls, and pier-and-beam foundations to minimize disruption.

• Pier-and-Beam Foundation Access

  The Problem: Pier-and-Beam Foundation Access

  Many of South Houston’s original homes are built on pier-and-beam foundations rather than concrete slabs. While this makes plumbing repairs more accessible (you can crawl under the house), it also means pipes are exposed to freezing during winter snaps and are vulnerable to damage from settling piers.

  The Blackmon Solution:
  We are experienced in crawling older foundations to repair frozen pipes, replace corroded sections, and insulate exposed lines. We understand the challenges of working in tight crawl spaces with limited headroom, original pier spacing, and decades of accumulated debris. We also identify and repair settling issues where differential foundation movement has stressed pipe joints.

• Aging Gas Systems

  The Problem: Aging Gas Systems

  Original black iron gas lines from the 1940s-1960s can develop pinhole leaks from corrosion, especially at threaded joints and where the pipe passes through concrete. If you smell gas (even faintly), it’s a serious safety issue that requires immediate attention.

  The Blackmon Solution:
  We perform pressure testing on your gas system to identify leaks. We repair or replace aging black iron sections with modern CSST (corrugated stainless steel tubing) that’s flexible, corrosion-resistant, and easier to route through older homes. We also install seismic gas shut-off valves that automatically close the gas line during earthquakes or major ground movement. We pull all required permits through the City of South Houston and ensure compliance with current codes.

Serving Neighborhoods Across South Houston