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White Efflorescence

White Efflorescence, a naturally occurring phenomenon on brick, concrete or stone walls and floors, is a loose, powder surface deposit. It usually disappears when the surface is wet and then reappears as the surface dries. It is caused by water-soluble salts, carried in either rainwater, construction water, or groundwater; as the water evaporates it leaves the crystallized salts on the surface.

Cleaning

Pressure washing can work to remove white efflorescence once the surface has thoroughly dried. The surface must be thoroughly rinsed to ensure that no residue remains. We also use a safe detergent to ensure a thorough clean. 

Prevention

Efflorescence is a naturally occurring phenomenon and is hard to prevent. Measures to avoid efflorescence can include using concrete of maximum density and low water absorption and ensuring that building materials are stored in a dry place, off the ground.

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Related Case Studies

Bragging about Building Cleans

We have worked on a number of building cleans, where we clean up brick work and other external surfaces after building work has been completed. One of these involved removing unsightly white efflorescence from a red brick façade on a building in Braggs Lane.

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Some of our clients

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Client Testimonials

“Excellent to deal with from start to finish, very professional in their attitude and kept us informed at every stage. ”

Esther Hunting - Warwick Estates

“They were able to remove the remnants of graffiti that had not been removed previously using chemicals.”

Joe - Hillcrest Estate Management

“Please pass on my sincere thanks to guys for the demo and for getting Neptune cleaned.”

Wendy Tomlinson - Senior Conservation Officer, Cheltenham Borough Council

“Absolutely spotless and perfectly clean, well done and thank you.”

Lloyd - Lambert Smith Hampton

“Their work is excellent – I recently visited a building that they cleaned for me 18 months ago and it still looks brilliant.”

Daniel Boyle - MD of Relyon Services

“They did a really great job of cleaning the high-level cladding on the building. I know that they offer a range of cleaning services and I will definitely be using them again in the future. ”

Christopher Haswell - Project Manager - Maddox Construction

Our Accreditations