Spot worn mortar, understand the work involved and avoid damaging older brickwork.
Applies to: UK homes; mortar type and repair method depend on building age and condition.
Last checked: 16 October 2026
Key points
• Loose, missing or weathered joints may need investigation and localised or wider repointing.
• Repointing does not cure a moving wall, trapped moisture or failing bricks.
• Mortar compatibility and careful joint preparation matter, especially on older brickwork.
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When to investigate
Inspect areas where mortar is crumbly, missing or letting in water. Also look at blown brick faces, cracked masonry, failed flashings, blocked gutters and movement. Repointing may be appropriate only after the root cause is understood.
Questions for the quote
• How much masonry will be repaired, and how will it be measured?
• Will joints be cleared and prepared without damaging sound bricks?
• How will the mortar type, colour and joint finish be matched?
• What protection, access, dust controls and waste disposal are included?
• Are bricks or lintels needing repair before repointing?
Older properties
Hard modern mortar can be unsuitable for some traditional softer brick or lime-mortar walls. Ask an experienced conservation mason to assess compatibility where appropriate; avoid specifying a mix simply because it is stronger.
Official sources
Use these official sources for the current detail that applies to your job, contract or location.
BuildPair provides general information and signposting, not legal, structural, electrical, gas or building-control approval. Requirements can change and the right answer depends on the work, contract, location and facts.
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