Sealing and painting brick both get asked about a lot. Both can look good and both can cause problems if the wall is not suited to them. The key thing to understand is that brick is meant to breathe.
Sealing brickwork
A breathable masonry sealer can reduce how much water the brick face absorbs while still letting the wall dry out.
- Can help on exposed walls that take a lot of weather or splash.
- Should be a breathable type, not a glossy film that traps moisture inside.
- Is not a fix for rising damp or a leak, and will make those worse if used to hide them.
Sealing is best thought of as light protection on a sound wall, not a cure for an existing damp problem.
Painting brickwork
Paint changes the look completely and it is close to permanent. Once brick is painted, it is very hard to go back.
Pros:
- A fresh, uniform finish that can lift a tired or mismatched wall.
- Can tie a renovation together where old and new brick clash.
Cons:
- The wall can no longer breathe the way bare brick does, so trapped moisture can cause flaking and spalling.
- It needs ongoing maintenance and repainting as it weathers.
- Stripping it later is messy, expensive, and can damage the brick face.
Making the call
Before you seal or paint, the wall itself needs to be sound and dry.
- Fix any damp, drainage, or pointing issues first, not after.
- On a period home, think hard before painting brick that was meant to be seen.
- If it is mainly a look you are chasing, repointing or a careful clean sometimes gets you there without committing to paint.
If you are weighing it up, send through a photo of the wall and your suburb. We will give you a straight answer on whether sealing, painting, or just tidying the brickwork is the right move.