If your faucets have started spitting out rusty, discolored water, or your water pressure just isn’t what it used to be, old plumbing might be to blame. Homes built before the 1960s, especially in older San Antonio neighborhoods like Alamo Heights and King William, were often constructed with galvanized pipes.
Over time, this type of plumbing wears out and can cause some serious problems. Whether you’re dealing with low pressure, discoloration, or costly repairs, you’re not alone, and you’ve got options.
If you’re discovering plumbing issues, We Buy Ugly Houses® San Antonio purchases houses in almost any condition, so you don’t have to deal with the stress of upgrades.

What is galvanized plumbing?
Galvanized plumbing refers to steel pipes that are coated with zinc to prevent rust and corrosion. It was widely used in residential construction until the 1960s and began to be phased out in the 1980s when longer-lasting materials like copper and PEX became more common.
Back in the day, it was seen as a safer, stronger alternative to lead pipes. But over time, we’ve learned that galvanized pipes come with their own set of problems.
In San Antonio, older neighborhoods like Monte Vista, Terrell Hills, and Beacon Hill often still have homes with galvanized plumbing, especially if they haven’t been updated in decades.
What problems can galvanized plumbing cause?
Interior corrosion and rust
Galvanized pipes corrode from the inside out. The zinc coating deteriorates with age, and rust builds up inside, which can lead to unseen leaks, clogs, or even bursts. That internal damage isn’t always obvious until something goes wrong.
Water quality issues
Discolored, brownish-orange water is one of the most common signs of failing pipes. It may also taste metallic or have an odor. Corroding galvanized pipes can even release small amounts of lead into your water, especially in homes built before 1960.
This can also damage appliances, fixtures, and anything that runs water through your system.
Reduced water pressure
As corrosion builds up, the inside of the pipe gets narrower. This restricts water flow and leads to inconsistent pressure in different areas of the house. San Antonio’s hard water can accelerate this buildup and make it worse.
Leaks and structural damage
Tiny pinhole leaks can go unnoticed for a long time, but they can still cause damage to drywall, flooring, and ceilings. Left unchecked, this can become a major repair project that goes far beyond plumbing.
What’s the cost to replace galvanized plumbing in San Antonio?
Replacing galvanized plumbing in San Antonio can cost anywhere from $2,000 to $15,000 or more, depending on your home’s size, layout, and plumbing material choices.
According to Creative Repipe, the cost of replacing galvanized pipes in a two-bedroom home with copper piping can run between $8,000 and $10,000. Copper is durable and long-lasting, but it’s also one of the more expensive plumbing materials.
If you’re looking for a more affordable alternative, PEX piping may be the way to go. It’s a flexible plastic material that’s easier and quicker to install. According to The Pricer, PEX repiping could bring the cost down to around $4,000 to $6,000 for a similar home.
Keep in mind, these are average ranges, and real-world costs in San Antonio can vary based on:
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Home size: Bigger homes mean more materials and labor.
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Number of bathrooms: More fixtures requires more complex plumbing
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Pipe accessibility: Homes with plumbing under slab foundations or in tight wall cavities will cost more.
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Material choice: Copper costs more upfront than PEX, but it may last longer.
Also consider hidden costs, such as potential water damage from undetected leaks or the price of increased utility bills due to poor water flow. As Integrity Plumbing Texas notes, San Antonio’s hard water can shorten the lifespan of aging galvanized systems even further.
Warning signs your house has galvanized pipes
Not sure if your home has galvanized pipes? Here’s how to tell:
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Visual cues: Look for steel-colored pipes with screw-like threads in the basement or crawl space.
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Do the magnet test: Scratch the pipe with a flathead screwdriver. If it’s silver-gray underneath and a magnet sticks, it’s likely galvanized steel.
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Signs of age: Was your house built before 1960? You might still have the original plumbing.
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Water issues: Watch for rusty water, metallic taste, or poor pressure, especially after the water hasn’t run for a while.
What are your options?
If you’ve discovered galvanized plumbing in your San Antonio home, you’ve got a few directions you can take. Some options are quick fixes, while others require a bigger investment or a different approach altogether. Here’s what to consider:
1. Patch the leaks.
This is a quick fix if the damage is minor, but it’s temporary. You might end up patching more leaks as time goes on.
2. Choose a partial replacement.
Some homeowners choose to replace sections of pipe during renovations. But mixing old and new materials can create future problems and more work down the road.
3. Do a full repipe.
If you plan to live in the home long-term, full replacement offers peace of mind and fewer repairs later. Just be prepared for the time and cost.
4. Sell the house “as is.”
Don’t want to deal with plumbing projects at all? Selling to an off-market buyer like We Buy Ugly Houses® San Antonio may be your best move. We buy houses in almost any condition, even with galvanized plumbing, and you don’t have to do a thing.
Why some San Antonio homeowners choose to sell
For many homeowners in San Antonio, tackling big repairs like galvanized plumbing just isn’t worth the time or upfront expense. That’s especially true if you’ve inherited an older home or are planning to downsize. Trying to renovate an investment property or a fixer-upper can quickly become overwhelming when there are multiple systems in need of updating.
With strong demand in the San Antonio real estate market, some sellers find it makes more sense to move on without fixing everything. Selling “as is” lets you skip the hassle and take advantage of a market that’s ready for change.
We buy houses throughout the metro area—from downtown to Stone Oak to Southtown—and we specialize in homes that need a little extra care.
Selling a house with galvanized plumbing
If you list your house traditionally, galvanized plumbing may create some friction in the sale. You might run into required inspections, repair negotiations with buyers, financing delays, or even demands to drop your asking price. These kinds of hurdles can drag out the process and cause a lot of stress.
Selling directly to We Buy Ugly Houses® San Antonio helps you skip those roadblocks. There are no inspections, no home staging, and no repairs required. We can sometimes close in as little as 3 weeks, and the process is simple and efficient.
San Antonio neighborhoods with older plumbing
Many homes built during the post-World War II construction boom still have galvanized pipes in place. You’re especially likely to see this in established neighborhoods like Alamo Heights, Monte Vista, King William, Beacon Hill, and parts of Terrell Hills.
Buyers in these areas often expect modern plumbing and other upgrades, which can make older homes more difficult to sell unless they’ve already been updated.
What should you do next?
If you're wondering whether to repair or sell, start by asking yourself a few key questions:
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Am I planning to stay in this home long-term?
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Do I want the upfront expense of $5,000–$15,000 in plumbing repairs?
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Do I have the time and energy to take on a major project?
If the answer to one or all of those questions is no, selling might be the best choice for your situation.
We Buy Ugly Houses in San Antonio offers no-pressure consultations. You don’t have to deal with contractors, inspections, or repair costs. We don’t charge agent commissions, and we cover typical closing costs.† Contact us today to sell your house fast.
This blog is for informational purposes only and should not be considered legal advice.






