Mortar Falling Out Between Bricks
Mortar is the material that holds brickwork and stonework together.
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Over time it can deteriorate due to weather exposure, frost and general ageing.
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When mortar begins to fall out between bricks it leaves gaps that allow water to penetrate the wall. This can eventually lead to damp problems and damage to the masonry.
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Northern Seal & Joint specialises in diagnosing and repairing failing mortar through professional repointing and masonry repair services.
Why Mortar Starts Falling Out
Mortar deterioration usually occurs gradually over many years.
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Common causes include:
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long-term exposure to rain and frost
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poor quality previous repointing
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movement within the building structure
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mortar that is too hard or too weak for the masonry
Older buildings built with lime mortar may require specialist Lime Mortar Repointing to maintain breathability.
Signs Your Brickwork Needs Repointing
Mortar falling out between bricks is often the first visible warning sign.
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Other signs include:
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small gaps appearing between bricks
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loose or sandy mortar
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cracks running through mortar joints
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pieces of mortar falling to the ground
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damp patches appearing on internal walls
If these issues are present it is usually time for the brickwork to be inspected.
You can also explore other common issues in the Problems We Fix section.
How Repointing Repairs the Problem
Repointing removes deteriorated mortar and replaces it with new mortar that restores the wall’s weather resistance.
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Typical work includes:
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removing damaged mortar joints
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preparing and cleaning the brickwork
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applying new mortar suited to the building
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finishing joints to match the masonry
Northern Seal & Joint carries out both Cement Mortar Repointing and Lime Mortar Repointing depending on the building type.
When an Inspection Is Recommended
Sometimes mortar failure is part of a wider problem affecting the building.
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If there are signs of water ingress, damp patches or widespread deterioration, it may be worth arranging a Building Leak & Damp Inspection before repairs begin.
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This allows the building fabric to be assessed properly and ensures the correct repair is recommended.
Related Repairs That May Be Required
In some cases mortar failure occurs alongside other building defects.
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Repairs may involve:
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External Sealant Services around windows and doors
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Masonry Repair where bricks or stone have deteriorated
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Water-repellent Treatments for porous brickwork
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Patio Repointing & Repair where paving joints are failing
Areas We Cover
Northern Seal & Joint carries out cement and lime mortar repointing across Harrogate, Leeds, Bradford, Skipton, Ilkley, Otley, Wetherby, Halifax and surrounding Yorkshire areas.
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Visit the Areas We Cover page for more information.
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