Six things, done properly.

The part of the garden you actually use.

Level stone underfoot, set to catch the afternoon sun and hold a table steady.

A wall is a drainage problem before it is a stone problem.

Walls that hold a slope and look like they were always part of the garden.

Laid to line, course by course.

Brickwork laid to line, from garden walls to chimney stacks and porch steps.

The face of the house, fitted stone by stone.

Natural and cut stone fitted to fireplaces, columns and the front of a house.

Set on a proper base, so it stays flat.

Paver drives and walkways set on a proper base, so they stay flat for decades.

The best repair is the one nobody can find.

Repointing, rebuilding and matching old mortar until the repair disappears.