Mortar Repointing Perth

Signs Your Brickwork Needs Mortar Repair or Repointing

Most Perth homeowners don’t notice deteriorating mortar until it becomes obvious. Here’s what to look for:

• Mortar crumbles or comes away easily when pressed with a finger or screwdriver
• Joints are recessed more than 5-10mm below the brick face
• Gaps or voids visible between bricks
• Loose or powdery mortar surfaces
• Moisture entering through brick joints
• White salt staining appearing on brickwork
• Cracking along mortar lines, especially around windows and doors

If you’re seeing any of these, it’s worth getting an inspection. Left too long, deteriorating mortar allows moisture into the wall structure, which leads to more significant (and costly) repairs

What Does Mortar Repointing Involve?

The process is straightforward, but it demands the right technique and mortar mix. Poor repointing using the wrong material can actually cause more damage to the surrounding brickwork. Here’s how we approach it:

1. Inspection and assessment – We examine the condition of your brickwork, identify how far the deterioration has spread, and determine the right mortar type for your wall.
2. Custom mortar mix – We create a mortar mix to AS3700 standard, matched to your existing brick colour, texture, and joint profile.
3. Vacuum grinding – Old mortar is carefully ground out to a depth of 10–20mm using specialised equipment. This ensures a solid base for the new mortar to bond to.
4. Mortar injection – Fresh mortar is injected into the joints using specialised tools that ensure consistent depth and pressure throughout.
5. Finishing and colour-matching – Joints are finished to match your existing profile. The end result blends with the wall rather than looking like an obvious repair.

Mortar Repointing vs Tuckpointing – What’s the Difference?

These two services are often used interchangeably, but they’re not the same thing.

Mortar repointing focuses purely on restoring the structural integrity of a brick wall. We remove deteriorated mortar and replace it with fresh mortar matched to the existing brickwork. The result is a stronger, weatherproof wall.

Tuckpointing goes a step further. In addition to structural repair, a colour-matched base mortar is applied over the joints to blend with the brick face. A fine raised white line is then applied on top, creating the appearance of perfectly even, sharp joints – even if the bricks themselves are irregular or aged.

If your wall needs structural repair and you’re not concerned with the aesthetic finish, mortar repointing is the right service. If you want both structure and a sharp, refined appearance – particularly on a heritage or Federation-style home – tuckpointing is worth considering.

What Causes Mortar to Deteriorate?

Perth’s climate creates specific challenges for mortar. Intense summer heat, coastal salt air (particularly in suburbs like Cottesloe, Fremantle, and Claremont), and seasonal rain cycles all accelerate mortar breakdown over time.

The most common causes we see:

• Age – lime mortars used in homes built before the 1960s break down more readily than modern cement-based mixes
• Moisture – water entering through cracked or open joints freezes, expands, and widens the damage
• Salt attack – salt carried in from coastal air crystallises within the mortar, causing it to crumble from the inside
• Incorrect previous repairs – using a mortar that’s too hard for the surrounding brickwork causes the bricks themselves to crack
• Structural movement – soil movement and subsidence (common in Perth’s sandy soils) puts stress on mortar joints

Who Do We Service?

Our mortar repointing services are suitable for a wide range of properties across Perth and regional WA:

• Residential homes – double brick, single brick, brick veneer
• Heritage and Federation-style properties
• Limestone and rendered walls
• Chimneys and fireplaces
• Garden walls, boundary walls, and retaining walls
• Alfresco areas and patios
• Commercial and industrial buildings
• Churches and heritage-listed structures