How to Fix Stone Steps

Written by jonah morrissey | 13/05/2017

Old stone steps can deteriorate over time, leaving the mortar between the stones loose or crumbling. If this occurs, it is important to repair the steps to maintain a safe surface to walk on. The mortar between the stones must be chiselled out and repointed with fresh mortar in a two-part process. The first part is called tamp pointing and is followed by finish pointing. Two different mortars are used for the mixes. The end result will be a sturdy repair for your stonework.

Things you need

  • Masonry hammer

  • Masonry chisel

  • Wire brush

  • Sharp sand

  • Mixing trough

  • Lime

  • Cement

  • Trowel

  • Water

  • Pointing trowel

  • Safety goggles

  • Gloves

Chisel out the loose or crumbling mortar joints in the stone steps until you reach solid mortar, approximately 2 to 3 inches. Tap a masonry chisel with a masonry hammer as you guide the chisel along the joints to clean it out.

Brush any loose debris left behind by the chisel out of the joints, using a wire brush.

Mix seven parts sharp sand, one part lime and one part cement in a mixing trough with a trowel. Slowly add water until you reach a stiff batter-like consistency.

Pack approximately half of the depth of the cleaned-out mortar joints in the steps with the mixed mortar, using the tip of a pointing trowel. This is called tamp pointing.

Mix six parts sharp sand, one part lime and three-quarters part cement in a mixing trough with enough water to create a stiff batter mix, using a trowel.

Fill the remaining depth of the tamp-pointed joints with the mortar you mixed in Step 5, using the point of a pointing trowel to finish-point the joints. Drag the tip of the trowel across the finished joints to smooth the surface.

Tips

  • Inspect stone steps seasonally, and make small repairs to the mortar as needed to maintain the stonework.

Warnings

  • Wear eye and hand protection when making stone step repairs.

Tips and Warnings

  • Inspect stone steps seasonally, and make small repairs to the mortar as needed to maintain the stonework.
  • Wear eye and hand protection when making stone step repairs.

Things you need

  • Masonry hammer
  • Masonry chisel
  • Wire brush
  • Sharp sand
  • Mixing trough
  • Lime
  • Cement
  • Trowel
  • Water
  • Pointing trowel
  • Safety goggles
  • Gloves

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