We have a very dedicated team into makig your stairs, patio or combination with slab at the best quality possible. We always watch for proper slope away from the building, using electrical laser to make level,  always as per drawing stair Elevation and Grade. Patio that you want could be done within period of weeks depending on weather and complicity of project. If you want slab at grade level, it would not take much time digging,pouring.  If you want something like a two storey deck, then it will take some planning, designing per customer liking, and get job done!