STEP 1: Decide the type of stain or dirt that you're dealing with


If your bricks are stained with rust, cement or mortar smears, keep reading. If you’re dealing with mould, mildew or algae, click here: Rust stains tend to tint areas of your bricks orange, and cement or mortar whitens your bricks. If this is the case for your bricks, stay put.



STEP 2: Buy an acid based detergent


Acid based masonry detergents or muriatic acid is available at home improvement stores, hardware stores or building supply centres. It is important that you read and follow safety advice provided on the acid container, as these chemicals can be highly corrosive and also reactive. Protective gloves, eye goggles, shows and chemical-resistant clothing must be worn. The acid should beused under a fume hood or in a well-ventilated area, as direct contact could cause chemical burns and damage surface. Exposure can damage the eyes, skin and respiratory organs irreversibly.


If you do not acquire the products listed above, do not attempt our guide. Get in contact with a professional. At SJ & SA Brick Restoration, we do have the knowledge and equipment necessary to ensure stains are removed in the safest possible way. Do not risk your life, or you’re the lives of others for the bricks. We can help.

Mortar and cement smears on brickwork

Rust stains on brickwork

STEP 3: Make the solution


Fill a plastic bucket 2/3 full of clean water. Add acid at a proportion of around 1 part acid to 3 parts water, but do not fill the bucket too full. Filling the bucket too much could cause the solution to splash out accidentally – a massive risk for you and those near. If you’re unsure, contact a member of our team. Knowing how much acid and water to use is difficult, and can also be dangerous for your bricks, yourself and those around. Being uncertain could kill you.

STEP 4: Wet the wall


Using a garden hose wet the wall. When it’s wet, it’s easier to see the discolouration.



STEP 5: Brush & scrub


Using an acid brush, brush the diluted acid solution onto the wall, scrubbing as you apply. Once you’ve brushed and scrubbed, allow the acid to work to 10 – 15 minutes. However, be sure to not let the wall dry out.


Our professionals have the time and knowledge to be more cautious. Having cleaned thousands of bricks in their lifetime, our experienced team will be able to brush and scrub your bricks without any worry. For peace of mind – and to relieve stresses including the risks acid brings and your wall drying out, call our professionals.

STEP 6: Rinse wall


Having given the solution time to work, rinse the wall thoroughly with copious amounts of water. Make sure that the solution doesn’t dry out by rinsing the whole wall, intensely and efficiently.


As well as the patch treated, rinse all surfaces exposed to the cleaning solutions. Use plenty of water to dilute them, preventing damage to surfaces or plants.



STEP 7: Consider sealing the brick


In order to prevent future staining or soiling, considering sealing the brick. Use a siloxane or silicone sealant, applied following the manufacturer’s directions.


We hope this guide helped. However, if you’re confused about any stage of the guide, please do not hesitate to get in contact. Working with acid can be dangerous for you and those nearby. Whether you don’t acquire the equipment needed, or you’re unsure of any step – get in contact with a member of our team. If you’ve followed every step cautiously and haven’t achieved the desired results, again – get in touch with a professional.


How to remove rust stains or cement and mortar smears from bricks

Does a blanket of dirt mask your house exterior? Rust stains, soil specks and cement smears… the bricks holding up your house are tainted with years of car fumes, harsh weather and neglect. Is your house stained with pollution? In this day – yes, most likely. If your bricks that used to gleam an orangey-brown in the sun seem darkened and blacker, pollution may have had an influence and action should be taken. For a truly thorough, undamaging clean, use a professional brick cleaning company. With our professionals at SA & SJ Brick Restoration, traces of the world’s corruption will be washed away and your home’s original beauty will be unearthed. However, if you would like to try out a method at home before contacting our professionals, we have devised a step-by-step guide revealing our top tips for a clean house exterior.


Do you have what it takes to follow the guide? For a safe clean, you must ensure that you have the appropriate equipment for the condition of your brickwork. Lacking suitable equipment and ability could result in damage to your bricks. If you’re unsure, or do not have the tools – it is highly recommended that a professional is called, as brick repairs are expensive. If you’re set with the equipment and feel educated in the field, have a go. However, even if slightly unsure, let our professionals take control.