Lubbock has a rich stock of older homes — the tree-lined streets of Tech Terrace, the mid-century ranch houses of Maxey Park, the craftsman bungalows of South Overton, and the established neighborhoods of Arnett Benson and Clapp Park. These homes have character and history, but they also have plumbing systems that were installed 40, 50, or even 70 years ago using materials and methods that are now outdated. If you own or are considering buying an older Lubbock home, this guide will help you understand what you're working with and what to prioritize.
Galvanized Steel Pipes: The Biggest Risk in Pre-1970 Homes
If your home was built before 1970, there's a significant chance your water supply lines are galvanized steel. Galvanized pipe was the standard residential pipe material from the early 1900s through the late 1960s. It was coated with zinc to resist corrosion, but that zinc coating breaks down over time — and in Lubbock's hard water environment, it breaks down faster than average.
As galvanized pipe corrodes from the inside, it develops a rough, rusty interior surface that mineral deposits cling to. Over decades, the pipe's interior diameter shrinks from the original 3/4 inch or 1/2 inch to a fraction of that. The result is severely reduced water pressure, discolored water (especially after the water has been sitting in the pipes overnight), and eventually, pipe failure.
What to do: If you have galvanized pipes and are experiencing low water pressure, rusty water, or frequent leaks, a whole-house repipe is the right solution. Modern PEX tubing is flexible, resistant to Lubbock's hard water, and far less expensive to install than copper. A repipe is a significant investment, but it eliminates the ongoing cycle of repairs and dramatically improves water pressure and quality.
Cast Iron Drain Lines: What to Watch For
Homes built before 1980 typically have cast iron drain and sewer lines. Cast iron is actually a durable material — it can last 50–100 years under normal conditions. However, it does corrode over time, and the corrosion process accelerates in homes with heavy use, frequent chemical drain cleaners, or where tree roots have infiltrated the line.
Signs that your cast iron drain lines are failing include: slow drains throughout the house (not just in one fixture), sewage odors inside the home, frequent clogs that return quickly after clearing, and wet or soggy spots in the yard above the sewer line. In Lubbock's older neighborhoods, tree roots from mature oak, elm, and cottonwood trees are a particularly common cause of cast iron sewer line damage.
The smart move: If you haven't had your sewer line inspected with a camera in the past 5 years, schedule one. A camera inspection is a relatively inexpensive way to see exactly what condition your drain lines are in and catch problems before they become emergencies. Cotton City Plumbing offers sewer camera inspections throughout Lubbock.
Copper Pipes and Slab Leaks in 1950s–1980s Homes
Copper replaced galvanized steel as the preferred pipe material in the 1950s and remained dominant through the 1980s. Copper is a better material than galvanized steel — it's more corrosion-resistant and doesn't restrict flow the same way. However, copper pipes in Lubbock homes from this era are now 40–70 years old, and they face two specific challenges.
First, Lubbock's hard water causes pitting corrosion on the inside of copper pipes over time. This weakens the pipe wall and makes it susceptible to pinhole leaks — tiny leaks that can drip inside walls for months before being discovered. If you notice water stains on walls or ceilings, or a musty smell in a room, a pinhole leak in a copper pipe is a likely cause.
Second, copper pipes in slab-built homes (which describes most Lubbock homes from this era) are buried beneath the concrete foundation and subject to the constant movement of our expansive clay soils. This is the primary cause of slab leaks in Lubbock. If your home is from this era and you've had one slab leak repaired, there's a meaningful chance others will follow — the same conditions that caused the first leak affect all the pipes beneath your slab.
Outdated Fixtures and Valves
Beyond the pipes themselves, older homes often have shutoff valves, angle stops, and fixture connections that are decades old and may not function properly in an emergency. A shutoff valve that hasn't been operated in 20 years may be seized open — meaning you can't turn off the water to a leaking fixture without shutting off the main supply to the entire house.
When we service older Lubbock homes, we routinely find angle stop valves (the small shutoff valves under sinks and behind toilets) that are corroded, stiff, or leaking. These are inexpensive to replace and should be updated proactively — especially on supply lines to washing machines, dishwashers, and refrigerators, where a failed valve or supply line can cause significant water damage.
Practical tip: Test every shutoff valve in your home annually. Turn each one fully off and then fully back on. If any valve is stiff, won't fully close, or leaks when operated, have it replaced before you need it in an emergency.
Buying an Older Lubbock Home? Get a Plumbing Inspection First.
A standard home inspection covers the visible and accessible parts of a home's plumbing — but it doesn't include a sewer camera inspection, a water pressure test, or an assessment of the pipe materials inside the walls. If you're buying a home built before 1985 in Lubbock, we strongly recommend scheduling a dedicated plumbing inspection before closing.
A plumbing inspection from Cotton City Plumbing includes a sewer camera inspection, water pressure measurement, assessment of visible pipe materials and condition, testing of all shutoff valves, and a written report of findings. This gives you the information you need to negotiate repairs before closing or budget for upgrades after you move in — rather than discovering a $10,000 slab leak repair or repipe need after the fact.