How to Seal & Repaint Block Walls

While a painted block wall may look great initially, after years of abuse from the weather, the paint on the wall will fade and often peel. In these cases, it is best to strip the paint and recover the wall with a new coat. Fortunately for those expecting a lengthy process, renewing the wall is straightforward and rather simple. In fact, you can finish the project in just a few days of work.

Broom
Bucket
Masonry paint stripper
Paint brush
Power washer
40-degree fanned tip
Goggles
Masonry primer
Paint tray
Paint roller
Masonry paint
Garden sprayer
Masonry sealant

Instructions

- 1
  Brush the wall free of debris and dirt with a broom.
- 2
  Fill a bucket with a masonry paint stripping agent and brush it evenly onto the block wall.
- 3
  Wait for the stripping agent to break apart the paint on the block wall as instructed on the packaging of the paint stripper.
- 4
  Cover surrounding plants with drop cloths to protect them.
- 5
  Fit the power washer with a 40-degree fanned tip and hold the wand of the washer 7 inches away from the wall. Spray down the entire wall with long, sweeping movements to remove the paint. It is best to protect your eyes with a pair of goggles during this process.
- 6
  Wait 24 hours for the wall to dry thoroughly.
- 7
  Pour a masonry primer into a paint tray and roll it evenly onto the wall with a paint roller. Once the primer has dried completely, fill the tray with masonry paint and roll on an even coating.
- 8
  Fill a garden sprayer with a masonry sealant and spray it evenly onto the block wall in a single coat once the paint has dried.

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