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Brick Cleaning Specialists — brick cleaning and pressure washing, Warilla NSW

Our core trade

Brick Cleaning

Cleaning brickwork properly is a chemistry job, not a pressure job. Get the dilution, the pre-soak or the timing wrong and you do not get a slightly worse result — you get acid burn, blown mortar joints or a vanadium stain that sets permanently. This is what we have done for over twenty years.

  • Think Brick accredited
  • Fully insured
  • 20+ years experience
Think Brick accredited
Fully insured
20+ years experience
Illawarra to the Highlands

Quick answer

What is brick cleaning?

Brick cleaning is the controlled removal of mortar smear, cement residue and staining from new or existing brickwork, usually using a diluted hydrochloric acid solution applied to pre-soaked, saturated brick and then fully neutralised and rinsed. In Australia the recognised standard is Think Brick Australia accreditation, which brick manufacturers require for cleaning to remain warranty-compliant. Typical new-home cleans happen 7–14 days after laying.

At a glance

Best timing
7–14 days after laying
Typical acid dilution
1:10 to 1:20 (brick dependent)
Pre-soak
Non-negotiable — always
Accreditation
Think Brick Australia
Insurance
Domestic & commercial
01

Why brickwork gets cleaned in the first place

A bricklayer’s job is to build a straight, plumb, structurally sound wall. Doing that inevitably leaves mortar on the face of the brick — smears from the trowel, droppings from the joint above, and a fine cement film that dries across the whole elevation. None of it comes off with water once it has cured.

On an older building the problem is different. Two or three decades of rain splash, roof runoff, soil contact, garden irrigation and coastal salt leave a wall that looks tired rather than dirty. Underneath that film the brick is usually perfect. Most owners considering rendering or painting a house have not seen what their brickwork actually looks like clean.

02

What separates a good brick clean from an expensive mistake

Four things, and every one of them happens before the acid touches the wall.

  • Identify the brick. Light and cream bricks can carry vanadium salts. Dark bricks are often coloured with manganese. Acid applied to either of those will set the stain rather than remove it, and the result is effectively permanent. Some manufacturers void warranty on acid contact entirely for specific ranges.
  • Saturate the wall first. A dry brick is porous and drinks the acid straight into the body of the unit, where it cannot be rinsed back out. Saturated brick keeps the reaction on the surface where it belongs. Skipping the pre-soak is the single most common cause of acid burn.
  • Match the dilution to the substrate. There is no universal mix. Strength is set by the brick type, the age and hardness of the mortar, and the ambient temperature on the day.
  • Neutralise and rinse thoroughly. Residual acid keeps working after you leave, and that is where efflorescence blooms and joints start to erode weeks later.
03

What we clean

New residential and commercial brickwork before handover, existing homes being prepared for sale, walls that have been cleaned badly by someone else, retaining and boundary walls, brick fences, paving and garden walls, blockwork, and heritage masonry where acid is off the table entirely.

We also take on the jobs other operators decline: vanadium and manganese staining, acid burn remediation, fire and smoke damage, and rust bleeding from reinforcement or tie wire.

Method

How we clean brickwork

A repeatable sequence that protects the brick, the mortar and everything around it.

0448 882 780
  1. 1

    Identify and test

    We establish the brick type and manufacturer where possible, check the mortar cure, and run a test patch in an inconspicuous area to confirm the correct chemistry and dilution before committing to the elevation.

  2. 2

    Protect the site

    Windows, frames, sills, painted surfaces, colorbond, aluminium and garden beds are covered or wet down. Downpipes and drains are managed so runoff is controlled.

  3. 3

    Saturate the substrate

    The full elevation is soaked until the brick will take no more water. This keeps the reaction on the surface and is the step that prevents acid burn.

  4. 4

    Apply and agitate

    The solution is applied in manageable sections from the bottom up, worked with the correct brush for the brick face, and given only the dwell time it needs.

  5. 5

    Neutralise and rinse

    Every section is rinsed top down with clean water until the runoff is clear and the surface is neutral. Nothing is left to keep reacting after we drive away.

  6. 6

    Inspect in the dry

    Wet brick lies to you. We return to check the elevation once it has dried back so anything missed is caught before it becomes your problem.

Coverage

Where we do brick cleaning

Illawarra

Wollongong · Shellharbour · Albion Park · Dapto · Kiama · Shell Cove

Shoalhaven

Nowra · Bomaderry · Vincentia · Huskisson · Berry · Culburra Beach · Ulladulla

Southern Highlands

Bowral · Mittagong · Moss Vale · Bundanoon

Sutherland Shire

Helensburgh · Engadine · Sutherland · Cronulla

Based at Warilla. Everything from Helensburgh to Ulladulla and inland to the Southern Highlands is inside our normal working area.

FAQ

Brick Cleaning — questions we get asked

How long after bricklaying should bricks be cleaned?

Usually between 7 and 14 days. The mortar needs to be cured enough that acid will not erode the joints, but not so old that the cement film has fully hardened onto the brick face. Clean too early and you rake out the joints; leave it several months and the job becomes much harder and more aggressive.

Will acid damage my bricks?

Correctly diluted acid applied to a saturated wall and properly rinsed will not damage sound brickwork. Damage comes from four things: acid on dry brick, over-strength mixes, excessive dwell time, and inadequate rinsing. It also comes from using acid at all on bricks that carry vanadium or manganese, which is why identification comes first.

Is pressure washing the same as brick cleaning?

No. Pressure washing removes what is sitting loosely on a surface. Brick cleaning removes cured cement and mineral staining chemically. High pressure alone on brickwork will not shift mortar smear, and on older or softer brick it will strip the fired face and blow out the mortar joints.

Do you clean the mortar joints as well?

Yes. A clean brick face with dirty, patchy joints looks worse than an untouched wall. The joint colour and texture is a large part of how the finished elevation reads, so it is treated as part of the same job.

Can you fix a brick clean someone else got wrong?

Often, yes. Acid burn, patchy cleaning, streaking and stains that have been set by the wrong chemistry are a large part of what we get called for. Send photos first — remediation is a different job to a standard clean and we will tell you honestly what is and is not recoverable.

Keep reading

Related services & stains

Acid Washing

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New Homes & Builders

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Heritage Brick

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Next step

Need brick cleaning quoted?

Call 0448 882 780 or send photos through the quote form. We will tell you what the job needs and what it will cost, including when the honest answer is that you do not need us.

0448 882 780Free quote