Start with the layout
List what the patio needs to hold: seating, a dining table, a grill or space to move around. Give rough dimensions and explain how people will reach it. Point out gates, narrow side yards and landscaping that may limit equipment access.
Keep water away from the house
Ask how the patio will meet doors, walls and existing paths. Discuss slope, drainage and the path water takes during storms. Do not raise a slab against the house without a plan for thresholds, drainage and the building details.
A patio in the Phoenix summer
Full sun can make concrete hot underfoot. Think about shade, finish color and the times you will use the space. For summer placement, ask about pour timing, fast drying and how the contractor will protect curing concrete.
Caliche or other variable ground conditions may change excavation and base work. Ask the contractor to inspect the site rather than quote only from square footage. Plants and irrigation near the slab also belong in the discussion.
Tell them about future additions
Shade posts, a hot tub, an outdoor kitchen or a wall may need their own support and approvals. A patio slab alone may not be suitable. Ask what design, utility checks or permits are needed before including those features.
Compare stamped concrete options with a simpler textured finish, and read the cost guide for a budget starting point.