How to Level High Spots in Concrete

An unlevel concrete surface can cause headaches for anyone looking to finish the floor with either tile, wood or even carpeting. Though removing high spots is possible through sanding, it is not precise or feasible for the average do-it-yourselfer. With a self-leveling concrete compound, however, you can raise the low spots to match the high spots. Once mixed and poured, the concrete will automatically settle into the low spots on the floor and level the surface.

Concrete degreaser
Pump sprayer
Nylon push broom
Hose
Wheelbarrow
Self-leveling compound
Shovel
Steel trowel

Instructions

- 1
  Fill a pump sprayer with concrete degreaser and spray it across the surface evenly. Once it has settled on the floor and broken up grease and oil stains for 15 minutes, brush the floor vigorously with a nylon push broom.
- 2
  Rinse the concrete with a hose and then allow the surface to dry for 3 to 4 hours before continuing.
- 3
  Move a wheelbarrow next to the site and fill it with self-leveling compound. Stir the compound thoroughly with a shovel and incorporate the included additive as instructed on the packaging.
- 4
  Scoop the compound onto the floor on the sides of the high spots. Once applied, immediately spread the compound to a 1/4 thickness with a steel trowel. Once initially spread, the compound will move into the proper areas so the the floor is level. Wait 48 hours before sealing the concrete.

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