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How to Repair Damaged Plaster Walls

These step-by-step instructions demonstrate how to easily repair a damaged plaster wall.

More in Remodeling

  • Time

    Weekend

  • Price Range

    $100 - $250

  • Difficulty

    Moderate

Highlights:

Step 1: Prepare the Wall

Remove any existing fixtures from the wall including shelves, towel racks and light fixtures. Make sure the power is off at the circuit breaker box when removing any electrical fixtures.

Lay down a drop cloth.

Use scrapers to remove any of the loose plaster.

Once the area is clean and the edges smoothed off, use a damp sponge to wipe down the wall. The plaster should only be damp and not saturated to enable the new material to meld with the old.

Step 2: Apply the Plaster

Prepare the plaster mix. The mix should be the consistency of thick pancake batter in accordance with the manufacturer's instructions. Make sure that there are no lumps in the mix to avoid air pockets in the wall.

Once the mix is ready, apply to the wall using a trowel. Fill up the holes first and then the joints then go back over these areas again.

Step 3: Sand and Paint

Once dry, sand the wall down and apply a second coat of plaster.

Allow to dry and sand down the wall once again to a smooth finish.

Prime and paint.

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