When a Portland homeowner calls us about a leak, the first signal is one of two things: visible water somewhere it shouldn't be, or a PWB bill that jumped sharply with nothing obvious to explain it. Anything you can see, hear, or pressure-test, we trace and repair. The bill alone — no wet spot, no stain anywhere in the house — is the case for a leak-detection specialist who runs acoustic, sonic, and thermal gear we don't carry, and we'll point you to one we trust.
Freeze patterns split by neighborhood, and that shapes most of our winter call mix. North Portland — St. Johns, Kenton, Arbor Lodge — runs a lot of original supply through unheated crawl spaces, where post-cold-snap pinhole calls cluster. SW Portland — Hillsdale, Multnomah Village, Garden Home — is where we see most slab leaks, almost always single-point on hot supply on post-1970 builds. Inner-NE basements — Irvington, Alameda, Grant Park — are the quietly-modified-over-decades pattern: drain branches and supply runs with at least one prior repair already in the route, which we plan the access cut around.
On permitting: most single-point leak repairs are maintenance work and don't require a Portland Bureau of Development Services permit. The threshold trips when scope expands into fixture relocation, drain rerouting, or anything approaching repipe — at that point we pull the permit through BDS and schedule the inspection ourselves, so you don't deal with the city.