When older brickwork needs repair, the challenge is often to make the new blend seamlessly with the old. Colour, mortar, and texture must harmonise so the repair looks natural rather than patched. Achieving this requires patience, attention to detail, and an understanding of the building’s history. Here’s a guide to repairing older brickwork with new bricks – discreetly and respectfully.

Understand the age and character of the brickwork

Before starting, take time to understand the age and type of the existing brickwork. Bricks have changed significantly over the decades in size, colour, and firing method. A Federation-era wall, for example, will differ greatly from one built in the 1970s. Mortar types also vary: older Australian homes often used lime mortar, while more recent ones use cement-based mixes.

Check the following:

• Brick size and shape – measure height, length, and width carefully.
• Colour and surface texture – is it smooth, rough, glossy, or matte?
• Mortar colour and composition – lime mortar is softer and lighter than cement mortar.

The better you understand the original materials, the easier it will be to find a suitable match.

Finding the right bricks

Sourcing new bricks that match old ones can be tricky, but there are several options available in Australia. Many brick manufacturers still produce traditional styles, and some specialise in heritage or restoration projects.

Consider these options:

• Reclaimed bricks – available from demolition yards, they already have the weathered look that suits older homes.
• New bricks with a rustic finish – some Australian manufacturers offer ranges designed to replicate aged bricks.
• Colour adjustment – in some cases, you can tone down new bricks using limewash or a mild acid wash to help them blend in.

Always take a few sample bricks home and compare them against the existing wall in natural daylight. Even small colour differences can stand out once the bricks are laid.

Mortar – the subtle unifier

Even the best-matched bricks can look out of place if the mortar doesn’t match. Mortar colour and texture make up a large part of a wall’s overall appearance. Take time to mix a mortar that matches both in tone and consistency.

• Lime mortar is ideal for older brickwork because it allows the wall to breathe and move naturally.
• Cement mortar is harder and should only be used if the original wall was built with it.
• Pigments can be added to adjust colour, but always test on a small area first.

When repointing, ensure the joints match the existing ones in depth and profile. This is often where the difference between old and new becomes most visible.

Work with care

When removing damaged bricks, work carefully to avoid harming the surrounding ones. Use a hammer and chisel gently, and clear out all old mortar so the new bricks have a solid base.

Lay the new bricks with the prepared mortar, keeping them level with the existing ones. Repoint once the mortar has started to firm up, shaping the joints to match the original style.

It’s best to work in small sections so you can continually assess how well the repair blends with the rest of the wall.

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Finishing and ageing

Even with careful work, new bricks may initially look too fresh. Over time, weathering will naturally soften the contrast, but you can help the process along.

• A light limewash can tone down bright colours.
• A thin lime slurry can create a more uniform appearance.
• Avoid paint or sealants, as they can trap moisture and damage the wall.

The goal is for the repair to look like part of the wall’s story, not a new addition.

Preserve the building’s character

Repairing older brickwork isn’t just about fixing damage – it’s about respecting the building’s original character. A discreet repair maintains the home’s charm and ensures it remains strong and beautiful for years to come.

With the right materials, patience, and an eye for detail, you can achieve a result that’s both durable and harmonious – and almost invisible.