One winter later, the bottom step feels taller. The stair has not necessarily grown. The ground beside it may have moved.

Record which part changed

Compare dated photographs of the landing, stringers, and nearby grade. Note rocking pavers, visible gaps, and whether the change reverses seasonally. Photograph from the same position so the bottom tread and landing appear together, rather than sending only a close-up of one low stone. Don't adjust the stair to match one temporary position. The repair needs to explain which part moved and how that changes the complete flight.

Simpson Strong-Tie's deck guide treats stair connections as part of the structure. The local design and applicable Ontario requirements determine the actual stair and landing details; a US illustration does not establish them.

Ask two different questions

First, what supports the stair? Second, what provides the walking surface at its base? A patio can be attractive and reasonably level while being the wrong assumption for structural support. Conversely, a supported stair can still meet an uneven, slippery landing.

Put the finished levels on the drawing

  • Show the intended landing elevation relative to the bottom tread.
  • Establish the stair support and any foundation work.
  • Show drainage away from the landing without creating an awkward walking slope.
  • Check the complete run of risers after the proposed changes.

If the stair or landing is unstable, restrict access until it has been assessed. A handrail is not a cure for unpredictable footing.

Ask the contractor to explain what moved, what will support the repaired stair, and where the landing will finish. Keep the before photos with that answer. A freshly level paver looks convincing in October; you want a repair that accounts for the winter that shifted it.