Old Town charm, old pipes: what every Alexandria homeowner should know

From the Federal-era rowhouses of Old Town to the bungalows of Del Ray and the brick colonials of Rosemont, big parts of Alexandria were built well before 1960. The plumbing in those homes can be 60, 80, even 100 years old. Many still have galvanized steel supply lines bringing water in and a cast iron sewer line carrying it out, and both wear out from the inside.

What your home's age says about its pipes

The age of a home is the single biggest clue to what its plumbing is made of. In Northern Virginia, pipe materials line up with construction eras pretty reliably:

• Before the 1960s: often galvanized steel supply lines
• 1960s through the 2000s: copper was the standard
• 1978 to 1995: some homes have polybutylene, a material known to fail
• Mid-2000s and later: increasingly modern PEX

That puts a large share of Alexandria's older homes in galvanized territory.

Galvanized steel: the slow leak you can't see

Galvanized pipe was coated in zinc to resist rust, but the coating doesn't last forever. After decades of water running through it, the inside of the pipe corrodes and clogs with rust and scale.

You've probably felt the early signs without knowing it. Weak water pressure. A faucet that spits brownish water first thing in the morning. Hot water that never quite feels like enough. Those aren't quirks of an old house. They're symptoms of pipes narrowing from the inside out.

The bigger risk is the part you can't see. As galvanized pipe corrodes, it weakens, and weak pipe eventually leaks. A slow leak inside a wall or under a floor can do serious damage to framing, floors, and finishes before you ever spot a stain. If you've noticed any of these signs, it's worth bringing in our leak and pipe repair team in Alexandria before a small problem becomes a soaked ceiling.

Cast iron sewer lines and why a sewer scope matters

Supply lines carry clean water in. Your sewer line carries everything out, and in older Alexandria homes, that line is often cast iron.

Like galvanized steel, cast iron corrodes from the inside. Over the decades it can crack, sag, or develop rough spots that catch debris and cause repeat backups. Add the mature trees that shade so many older neighborhoods, and roots work their way into every small gap in the pipe.

That's why a sewer scope matters, especially before you buy. We run a small waterproof camera down the line to see the actual condition of the pipe. A standard home inspection usually doesn't include one, so buyers can close on a lovely historic home with no idea the sewer line is one bad winter away from failing. We explain more in our post on getting a sewer scope before you buy.

If your drains back up more than they should, the same camera inspection shows whether the line needs cleaning or sewer line repair.

When repiping makes sense

Nobody wants to hear the word "repipe." But for a lot of older homes here, replacing failing galvanized supply lines is an upgrade that protects everything else you've put into the house.

Repiping usually makes sense when the problems add up: repeated leaks, chronic low pressure, discolored water, or an inspection showing badly corroded pipe walls. Patching one section of failing galvanized often just moves the next leak a few feet down the line. At some point, replacing the run with modern copper or PEX repiping ends the whack-a-mole for the long haul.

For a home you plan to keep, new supply lines mean better pressure and cleaner water. Think of it the way you'd think about a new roof: a real investment in a house that's clearly worth protecting.

This work needs a permit. Alexandria is an independent city, separate from Fairfax County, with its own permits, and we handle the whole permitting process so you don't have to.

What we check when we inspect

You don't need to crawl around your basement testing anything. That's our job. When we inspect an older Alexandria home, we look at:

• The material and condition of your supply lines
• Signs of corrosion or past leaks
• The condition of the sewer line
• Water pressure throughout the house
• The age of the connections tying you to the water main in the street

Those mains are often decades old themselves, which shapes how we approach everything downstream. The one thing worth knowing yourself is where your main water shutoff is, so you can stop the water fast in a real leak.

If you're buying, renovating, or just tired of guessing what's behind your walls, our family-owned team would be glad to take a look and give you a straight answer. Call us at (703) 508-3088. We'll make sure your Alexandria home is as sound on the inside as it looks from the street.