Mark what stays
Identify adjacent slabs, steps, foundations and landscape features to protect. Partial removal needs a deliberate edge rather than an assumed break line. Ask how the remaining surface will be separated and protected.
Prepare for access and utilities
Equipment access and haul routes can affect the method and cost. Underground services must be considered before excavation. Share known utility information and clarify who arranges the necessary locating and coordination.
Define the finished condition
Removal for replacement concrete differs from removal for planting or lawn. Specify disposal, grading, imported material and restoration. Without that detail, an apparently complete demolition quote may leave additional work before the area is usable.
Handle surprises in writing
Reinforcement, extra thickness, buried obstructions and unsuitable material can affect scope. Agree on how those discoveries are documented and priced before work starts. Connect the removal schedule to the next stage so access and open areas are managed.