Damp Repairs | Damp Proofing | Rising Damp Repair
Rising damp occurs when ground moisture is drawn up through the porous capillaries of brickwork and mortar in a building�s foundation, acting similarly to a sponge absorbing water. This process is driven by capillary action, transporting groundwater upwards to a height of up to 1.5 meters.
As the damp rise rises, it carries dissolved mineral salts (such as nitrates and chlorides) from the soil. When the moisture reaches the wall surface and evaporates, these salts recrystallize, expanding inside the plaster. This causes paint to bubble and peel, plaster to crumble, and leaves white, powdery deposits known as efflorescence. This damp environment is also a prime breeding ground for harmful black mould.
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Identify root cause via professional assessment.
Remove compromised plaster and materials.
Specialized plaster for SA conditions.
Proprietary sealant for lasting protection.
Older buildings, especially with solid walls are more likely to suffer from rising damp.
Excessive moss growth caused by rising damp.
Moisture entering the brick (spalling).
Stains, salts, and paint deterioration.
Rotting skirting boards or timber.
Treating rising damp requires a permanent physical or chemical barrier, known as a Damp Proof Course (DPC). Many homeowners attempt quick DIY fixes like painting over the salt deposits or brushing on topical sealants. These do not stop the moisture; they simply trap it inside the brickwork, causing the brick structure to deteriorate rapidly and leading to much higher repair bills later.
Our professional solution involves injecting a specialized, high-viscosity silicone damp-proofing cream directly into pre-drilled holes in the mortar course. This cream diffuses to form a continuous, hydrophobic barrier that stops rising damp permanently. Following this, the contaminated plaster must be removed and replaced with a specialized salt-retardant backing plaster and a breathable final finish, ensuring a completely dry, healthy wall structure.
Have a question or want to request a free on-site damp and waterproofing inspection? Send us a message and our team will contact you back immediately.