If your home still has galvanized plumbing, you may be wondering whether it needs to be replaced and what your options are.
One of the most common replacements for older galvanized water lines is PEX. For homeowners dealing with aging galvanized pipes, replacing the existing plumbing with PEX can address problems with water pressure, corrosion, leaks, and an aging plumbing system before those issues become more serious.
So, when should galvanized pipes be replaced, and what does replacing galvanized pipes with PEX actually involve?
What Are Galvanized Pipes?
Galvanized steel pipes were commonly used for residential water lines in older homes. The steel was coated with zinc to help protect it from corrosion.
The problem is that galvanized plumbing doesn’t last forever.
As the pipes age, corrosion and buildup can develop inside them. Because much of this deterioration happens inside the pipe, homeowners may not realize how restricted or deteriorated their plumbing has become until they begin experiencing problems.
If you own an older home and aren’t sure what type of water lines you have, a plumbing evaluation can help identify the material and condition of your pipes.
Is Galvanized Steel Still Good for Plumbing?
Galvanized steel is generally not used for new residential water supply plumbing the way it once was.
If your home already has galvanized plumbing, that doesn’t automatically mean you have an emergency. It does mean the age and condition of the system are worth paying attention to.
Older galvanized pipes can develop internal corrosion and buildup that affect the performance of your plumbing.
Problems can include reduced water flow, declining water pressure, discolored water, and eventually leaks.
The condition can also vary throughout the house. One accessible section of pipe may look fine while other areas of the plumbing are significantly more deteriorated.
How Do You Know If Galvanized Pipes Need to Be Replaced?
The first thing to consider is whether you’re already experiencing problems.
Low water pressure throughout the house can be one warning sign. As buildup develops inside galvanized water lines, the interior diameter of the pipe can become smaller and restrict water flow.
Discolored or rusty-looking water can also indicate corrosion somewhere in the plumbing system.
Leaks are another concern, particularly when they begin happening in multiple locations.
Even without obvious symptoms, the age of the plumbing matters. If you know your home has older galvanized water lines, having them evaluated can give you a much better idea of their condition and whether replacement should be planned.
Can You Replace Galvanized Pipes With PEX?
Yes. PEX is commonly used when repiping homes with older plumbing.
PEX is a flexible plumbing material that can be routed through many areas of a house more efficiently than rigid piping.
For a whole-house repipe, the old galvanized water supply system is taken out of service and new water lines are installed to supply the home’s fixtures.
The exact approach depends on the layout and construction of the house.
Why Replace Galvanized Pipes With PEX?
One major reason homeowners make the switch is to solve the problems created by aging galvanized plumbing.
If corrosion and buildup are restricting the old water lines, new piping can improve water delivery throughout the home.
Replacing the system also addresses the bigger concern with aging plumbing: continuing deterioration.
Repairing one leaking section of galvanized pipe doesn’t change the condition of the remaining galvanized pipes throughout the house.
When the plumbing system as a whole is aging, a repipe allows you to replace those old water lines rather than waiting for problems to appear one section at a time.
How Much Does It Cost to Replace Galvanized Pipes With PEX?
This is one of the biggest questions homeowners have, and there isn’t a single price that applies to every house.
The cost to replace galvanized pipes with PEX depends on factors such as the size of the home, number of plumbing fixtures, number of stories, accessibility of the existing water lines, and overall complexity of the repipe.
A smaller home with easily accessible plumbing will be a different project from a larger multi-story house with difficult-to-access water lines.
That’s also why online repipe calculators and national cost averages can be misleading.
If you’re trying to determine what it would cost to replace the galvanized plumbing in your home, an in-person repipe evaluation will give you a much more useful number.
Red Cedar Repipe offers competitive repipe pricing, with financing options available for homeowners who prefer to spread the cost out over time.
Do You Have to Open the Walls to Replace Galvanized Pipes?
Some wall or ceiling access is typically necessary during a whole-house repipe because the water lines run through the home.
That doesn’t mean your entire house needs to be torn apart.
An experienced repipe company plans the new plumbing routes and access points with the goal of completing the work while minimizing disruption to the home.
Before your project begins, you should know where access will be needed, what the installation process will look like, and what is included in the scope of work.
Should You Replace Galvanized Pipes Before They Leak?
You don’t necessarily have to wait for a pipe to fail before evaluating your plumbing.
In fact, that’s one of the advantages of knowing that your home has aging galvanized pipes.
You have an opportunity to understand their condition and plan for replacement instead of making the decision in the middle of a plumbing emergency.
If you’re already noticing poor water pressure, discoloration, leaks, or other plumbing problems, it becomes even more important to determine whether those issues are connected to the galvanized system.
Get Your Galvanized Plumbing Evaluated
If your home still has galvanized water lines, the first step isn’t assuming that you need a repipe.
It’s finding out what condition your plumbing is actually in.
Red Cedar Repipe specializes in whole-house repiping and replacing aging plumbing systems with modern piping.
We serve homeowners throughout the Seattle area and focus on making repiping as straightforward and minimally disruptive as possible.
If you’re wondering whether it’s time to replace your galvanized pipes with PEX, schedule a repipe evaluation with Red Cedar Repipe.
Call (425) 736-7669 or visit redcedarrepipe.com to schedule your evaluation.