Paver Patios in Bothell, WA

Less than it affects a structure, but it is worth confirming. Bothell spans the King–Snohomish boundary, and the permitting authority and applicable regulations are not identical between them. For a straightforward at-grade paved surface this rarely changes much. Where it matters is anything with a structural element — a raised deck, a retaining edge above a certain height, or work near a regulated critical area — because those thresholds are set locally. We establish which jurisdiction governs your address at the first visit rather than assuming from the neighbouring street.

More free-draining depth, and an actual route for water to leave from under it. On the North Creek and Sammamish River valley floors the ground is alluvial and sits close to a high water table, so a base build-up there is surrounded by wet soil for much of the year. Water in a base migrates fines out of the compacted rock, which hollows it and lets the surface settle. The answer is a deeper genuinely free-draining build-up with a drainage layer and an outfall, rather than the standard detail that works perfectly well up on Norway Hill.

Because the two lots almost never fall the same way, and on this hill that variation is unusually wide street to street. Norway Hill drops in irregular steps rather than at one consistent grade, so one garden gives you a nearly flat pad where the patio simply gets built, and the garden three doors down falls two and a half feet across the same footprint and needs an edge, a drain behind it and twelve tons of imported fill first. Same square footage, same paver, same crew — a different job. The other local variable is access: some of these lots have a side route wide enough to bring a machine and a delivery truck to the back, and some are barrow-only through a gate, which can add days of labour to an identical specification. Both get measured at the site visit, which is why we will not quote this one over the phone.

Both last a long time; they fail differently, and that difference matters more than the lifespan. A well-built paver field tolerates the small ground movement that our wet winters produce, and if a section does settle or a unit is damaged you lift and reset that part invisibly. Poured concrete costs slightly less to install and looks cleaner initially, but it will crack eventually — jointing controls where, not whether — and a repair is visible permanently. On ground that moves at all, which includes most of the Bothell valley floor, pavers are the more forgiving choice.