These "before and after" photos were taken by our customer, Mary at her home in the Waynewood development of Alexandria. We overhauled the existing, overgrown front and created an open design offering both color and 12-month interest in the form of large and small evergreens.
We begin by digging a cavity out of the soil, including uprooting all weeds. This provides space for a layer of pea gravel underneath a 1-inch-thick layer of all-purpose sand or stone dust. Then, we set in the pavers for a level layout. The 4-inch x 4-inch wood collars (3 sides) and concrete patio (1 side) provide the shell for a snug fit.
We dig out the cracked and crumbled mortar between pieces of flagstone. Then we pour in mortar mix (with water) so content is soft but thick enough for a snug fit when dry.
It's water applied at a very high speed. No chemicals are used. The hose from the machine hooks to the hose from your spigot. Notice how one application turns a) soiled mortar between bricks a brilliant while and b) dirty deck wood a yellowish-beige. (this is from one of my jobs, though I no longer pressure wash for my customers)