Pipe Replacement & Repiping
Pipe Replacement & Repiping in Washington, DC & Bethesda
I'm Mike. If you've got low water pressure, rusty water, or a hidden leak that keeps coming back, old pipes are often the reason. I've replaced a lot of pipe in this area, and I know what to look for. I'm licensed in DC, bonded, and insured, and I've done over a thousand jobs across Northwest DC and Bethesda.
DC Licensed · Bonded & Insured · 6 Years · 1,000+ Jobs · 43 Google Reviews
Call or Text MikeGalvanized Pipes
Galvanized Pipes in Older NW DC Homes: What You Need to Know
A lot of homes in upper Northwest DC and Bethesda were built in the 1940s, 50s, and 60s. Many of them still have the original galvanized steel supply lines. Galvanized pipe was standard back then. It's not anymore, and for good reason.
Galvanized steel corrodes from the inside out. Over decades, rust and mineral buildup narrow the pipe walls until water pressure drops and water quality suffers. You might see orange or brown discoloration at the tap, especially first thing in the morning. That's not the water company's problem. That's your pipes.
When I do a leak detection job in an older home and find a hidden leak, galvanized corrosion is the root cause more often than not. A patch repair might hold for a year. But if the pipe is corroded through in one spot, it's corroded in others. Repiping is the permanent fix. I'll tell you honestly which situation you're in.
Warning Signs
Signs Your Pipes Need Replacing
Some of these are obvious. Some aren't. Either way, if you're seeing more than one of these, it's worth a conversation.
Low water pressure throughout the house, not just one fixture. Rusty or discolored water, especially after the water's been sitting overnight. Frequent leaks at joints or fittings, the kind where you fix one and another shows up a few months later. Visible corrosion or orange staining on exposed pipe in the basement or utility room.
A spike in your water bill with no obvious explanation. That can point to a slow leak inside a wall or under a slab. I can run a leak detection to find it. If galvanized pipe is the cause, I'll tell you straight and explain what replacement would actually involve.
The age of your home matters too. If you're in an older row house or a mid-century colonial in Chevy Chase or Tenleytown and you've never had the supply lines looked at, there's a real chance they're original. That's worth knowing.
The Process
What Repiping Actually Involves
This is the part people worry about most. I get it. Nobody wants to hear that their walls are getting opened up. So let me be straightforward about what the process actually looks like.
A full repipe replaces the galvanized steel supply lines with copper or PEX. PEX is flexible, which means I can often run new lines through existing spaces with fewer cuts into drywall than you'd expect. The number of access points depends on your home's layout, but I try to keep disruption to a minimum and I'll walk you through what's needed before I start.
A typical repipe on a single-family home in this area takes two to four days depending on size and how the house is built. I'll give you a realistic timeline before we start, not an optimistic one.
What to Expect During the Job
- Water will be off during work hours, back on at the end of each day in most cases
- Drywall access points are made where needed, kept as small as practical
- New supply lines run throughout the home, properly sized and supported
- All shut-off valves replaced if they're original or corroded
- Work is inspected before walls are closed
- Drywall patching coordinated through my network if needed
- Faucet and valve installation
- Water damage assessment
I won't push you toward a full repipe if a targeted repair makes sense. But if the pipe condition tells me you'll be back here in six months with another leak, I'll say so. You can decide from there.
Common Questions
Frequently Asked Questions
How much does repiping a house cost in DC? It depends on the size of the home, the material used, and how accessible the existing pipes are. PEX is generally less expensive than copper because it's faster to install. I give straight estimates after seeing the job. No vague ranges that double once work starts.
How do I know if my home has galvanized pipes? The easiest way is to look at exposed pipe in your basement, utility room, or under a sink. Galvanized steel is dull gray and often shows surface rust or white mineral buildup at the joints. If you scratch it with a coin and see silver underneath, it's galvanized. Copper scratches to a copper color. If you're not sure, send me a photo or I can take a look when I'm out.
How long does a full repipe take? For most homes I work on in NW DC and Bethesda, two to four days is typical. Larger homes or complicated layouts can run longer. I'll tell you what to expect for your specific house before anything gets scheduled.
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