One pinhole is a repair. The second one in a year, in a different spot, is a message. If the water comes out rust-colored after sitting overnight, and the kitchen, the bathroom and the basement sink all run weaker than they used to, the pipe is usually failing along its length and not at a single point.
If the weeping is more than a slow drip, shut off the main and put a bucket under the spot. In a Harrisburg rowhome the main is usually in the basement on the front wall, where the line enters from the street, close to the water meter. In a post-war ranch, look in a utility room or near the water heater. Do not wrap a pinhole in tape and call it done, because the wall of the pipe around it is just as thin.
Galvanized steel is the usual cause in houses from the first half of the last century. It corrodes from the inside, so scale narrows the bore while the outside still looks fine, and that is why pressure fades before a leak ever shows. Copper can pit through and leave pinholes as well. In Harrisburg the housing stock makes this common: 43% of city homes were built before 1940 and 66% before 1960, and the median year built is 1947. If the rust seems to start at the street end, it is worth reading about the water line from the curb stop, because that is a separate pipe with a separate fix.
Repipe or patch is the honest question. A patch is the right call when one spot has failed in otherwise sound pipe: a bad fitting, a section hit by a nail, a length that split in a freeze. When the pipe on both sides of the patch is the same age and the same condition, the next leak tends to show up a few feet along. A repipe replaces the supply runs, usually in copper or PEX, and often means opening a few spots in plaster or drywall and running new lines through basement joists. For a single wet spot you can see, water leak repair may be all you need.
Cost depends on how much of the house has to be reached. The number of fixtures, how many floors the pipes serve, whether the runs are exposed in the basement or buried in plaster, the material chosen, the wall repair afterwards and the city permit all move the job. The plumber who takes the call can tell you which of those apply once they see the pipe.
It becomes an emergency when a joint lets go or a pipe sprays, when water comes through a ceiling, or when a tap gives nothing at all. Shut the main first, then see burst pipe repair for what to do next. A slow pinhole is not a flood, but do not leave it through a hard freeze.
Inside the City of Harrisburg, installing or replacing pipe needs a permit and a master plumber licensed with the city, handled through the Bureau of Codes at 10 N. 2nd St. In an emergency the work can start first, with the permit application due 3 business days later. The city also adopted the 2021 International Plumbing Code effective January 1, 2026, so new pipe work is built to that code.
Harrisburg Pipe Repair Line is a referral line. Call (717) 853-4052, describe where the leaks have been and what the water looks like, and we connect you with an independent local plumber who handles replacement work.
Technician insight
Tap the old pipe before anyone cuts into it. Galvanized that rings solid is one thing, and galvanized that sounds dull and gives under a screwdriver handle is finished. Ask to see the inside of a cut section so you can judge for yourself whether a patch is worth it. And never rebuild a failed run with the same metals mixed back together at the joints, because that is how the next pinhole gets started.
Pipe Replacement Services We Offer
✓Galvanized Pipe Replacement
Old steel supply lines that have scaled up from the inside are taken out and replaced so pressure and water color recover.
✓Whole-house Repipe
New supply runs to every fixture when pinholes keep appearing in different places.
✓Partial Pipe Replacement
One failed run, such as a kitchen or bathroom branch, is replaced while sound pipe elsewhere stays in place.
✓Basement Main Run Replacement
The exposed line from the meter and main shutoff to the first branches is replaced where it is rusted or pitted.