Pinhole leaks in copper in Bainbridge Island, WA

The likely causes here

In Bainbridge Island we check contact corrosion before anything else, because a wet crawlspace a hundred feet from the leak is how it shows up here. Copper against concrete, fill, a steel hanger or a nail plate corrodes at the contact point. Kitsap Formation clay that swells and shrinks makes the signs misleading, so we confirm rather than assume.

Next: age. Copper from the 1960s and 70s has been in service for half a century, and thin spots fail first. With till on the island interior under shared easements through second growth, the symptoms can look identical to the first cause, which is why the meter test and the locate matter.

Finally, water chemistry. Slightly aggressive water dissolves copper from the inside over decades. Worth five minutes before anyone digs bluff soils above Eagle Harbor.

What to check first

Many island lines also pass under paved parking pads that we sleeve.

Do this before anyone digs bluff soils above Eagle Harbor in Bainbridge Island: do the meter test to catch the current leak if there is one. Look at exposed copper in the crawlspace for green-blue staining or earlier patches. It takes minutes and it tells us whether the problem is on sloped waterfront lots at Port Blakely or inside the house.

The fix in Bainbridge Island

The repair side is whole-house repipe. On custom-home acreage off Highway 305 that means abandon or remove old lines, then survey in clay that sticks to the bucket where the problem actually is, then run new lines. If what we expose is HDPE under paved parking pads at the end of its life, we say so with the pipe in your hand.

From Lynwood Center to Eagle Harbor and out around Manzanita, pinhole leaks in copper is a regular Bainbridge Island call for us. Across the Agate Pass Bridge from the Kitsap side, and emergencies on shared easements through second growth dispatch immediately, any hour.