Bricks That Belong: Matching Old Walls Without the Patchwork Look

There's a particular kind of disappointment that comes from a repair you can spot from the pavement. The wall was sound, the mortar was neat, the bricky did a tidy job — and yet one square metre of the elevation is shouting at you. Nine times out of ten, it's the brick. Not the workmanship. The match.

At McPhail & Sons we've been helping people solve small, specific building problems since 1952, and brick matching is one of the most common. It's also one of the least glamorous. Nobody puts 'found a decent reclaimed brick' on a project board. But it matters.

Start with the wall, not the catalogue

Before you open a brochure or scroll through a website, stand in front of the wall. Ideally in daylight, and ideally twice: once when it's dry and once after rain. Colour changes. A brick that looks flat and dusty at noon can go deep and orange when wet. North-facing walls hold damp and shade; south-facing walls bleach. Note the bond — stretcher, Flemish, English — the joint width and profile, and the general texture. Take photos from a few metres back and close up. A phone photo in flat light is better than nothing, but a real look in real daylight is better.

Bring a whole brick, not a crumb

This is the bit people skip. A chip from the corner of a brick tells us very little. It's a different part of the firing, it's weathered differently, and it may be mortar-stained. If there's a loose brick in the garden wall, bring it. If a builder is taking down a chimney, ask them to save a few. If you can't get a whole brick, bring a good photo and the dimensions. Don't lever one out of the house wall on a Sunday afternoon — that's a repair of its own.

Size matters before colour

Old UK bricks aren't all the same size. You'll find imperial bricks around 225 x 110 x 73mm and metric ones around 215 x 102.5 x 65mm, and plenty of local variations in between. A few millimetres doesn't sound like much until you're trying to keep a course line. Mortar joints can absorb small differences, but they can't hide a brick that's 10mm too tall. Check length, width and height, and check whether the wall is laid in a bond that depends on a particular size. If you're extending, the new work needs to marry up with the old, not just sit next to it.

Colour is a range, not a single shade

A pack of bricks is never one colour. It's a spread — lighter, darker, more yellow, more red, a few with a bit of ash or a flared face. That's normal, and it's your friend. The mistake is to pick the single closest brick and buy a pack of them. You'll end up with a rectangle of uniform colour in a wall that has spent decades being variegated. Instead, buy from a batch with a similar range and mix them on the board before they go in. If you can, buy a little more than you need and blend from several packs. The odd batch at the back of the yard is often perfect for this.

Texture, face and the weather

Look at the surface: wirecut, stock, sandfaced, dragged, glazed? A smooth new wirecut brick next to a handmade stock brick will look wrong even if the colour is close. Also think about exposure. UK winters are wet and frosty, and a garden wall or an exposed elevation needs a brick that can take it. Frost resistance is rated, and it's worth asking. Reclaimed bricks can be perfectly frost-resistant, but they can also be soft and porous, especially if they've come from an internal wall. We'd rather ask the question than sell you a bargain that spalls after two winters.

Reclaimed or new?

Reclaimed gives you character and, often, a closer match to an old wall. It also gives you inconsistency, breakage, mortar to clean off and a lead time. New gives you consistency, a known specification and easier availability, but it can stand out until it weathers. Neither is automatically right. For a small repair on a 1930s semi, reclaimed is often the answer. For a new garden wall where you want a uniform look, new stock may be better. For an extension, it's usually a conversation between the two.

The mortar is half the match

People obsess over the brick and forget the joint. A perfect brick with a hard grey cement mortar in an old lime-mortared wall will still look like a repair. It can also damage the brickwork over time, because the mortar is stronger and less flexible than the bricks around it. Match the mortar colour, the mix and the joint profile. Rake out and repoint carefully. If the existing joints are weathered and slightly recessed, a flush new joint will catch the eye. Sometimes the best brick match in the yard is undone by a bright new mortar line.

The patchwork test

Before anything is fixed, lay the bricks out on a board or the ground near the wall. Stand back. Look at them in daylight. Mix the light and dark ones. Don't put all the dark bricks in one corner. Don't line up the new ones in a neat rectangle. A repair should read as part of the wall, not as a diagram of a repair. If you can, get the bricky to do a small trial panel. It's cheaper than looking at a patchwork for the next twenty years.

Ask the yard

This is where a merchant with a long memory helps. We keep odd batches, end-of-line packs and reclaimed stock because small jobs need small quantities of the right thing. Bring your sample, your photos and your dimensions. We'll walk the yard with you and see what's close. It won't always be perfect. Old walls are old walls. But with a bit of patience, a repair can settle in and stop announcing itself.