Track exterior surface conditions and organize drainage and use requirements.
Safety first
Do not assume a crack is harmless or structural from its width alone. Excavation, retaining structures and slabs supporting buildings need project-specific evaluation. Avoid handling wet cement without appropriate protection.
Checklist
Photograph cracks, settlement and surface scaling with dates.
Note trip edges and changes in elevation.
Observe where rainwater collects and where it drains.
Document intended loads and uses before specifying a new surface.
Locate utilities, easements and property limits before excavation.
Ask how the base, joints, reinforcement and drainage are designed for the site.
Discuss curing and when pedestrian or vehicle access is permitted.
Use maintenance and deicing methods appropriate to the concrete finish.
Have progressive displacement, undermining or retaining-wall movement evaluated.