What is repointing?
Repointing is the process of removing deteriorated mortar from the joints between bricks and replacing it with fresh mortar. Over time, mortar weathers and crumbles. Gaps allow water into the wall, causing damp, frost damage and eventually structural problems. Repointing restores the weather seal and prevents long-term damage to your brickwork.
How much does repointing cost in 2026?
The UK average cost for repointing is £40–60 per square metre, rising to £50–80 per square metre in the South of England and London. Total job cost depends primarily on the size of the wall, the mortar type required, and whether scaffolding is needed.
| Job | Typical cost (South of England) |
|---|---|
| Chimney repoint (scaffolding included) | £400–£900 |
| Front elevation — small terrace | £600–£1,200 |
| Full house — 3-bed semi | £2,000–£4,000 |
| Full house — 4-bed detached | £3,500–£6,000 |
| Garden wall (10 metres both sides) | £400–£900 |
These are guide prices only. Actual cost depends on access difficulty, mortar type, condition of existing joints and your location. Always get 2–3 written, itemised quotes.
What affects the cost?
Scaffolding
Scaffolding is usually required for any repointing above ground floor level. Scaffold hire typically adds £600–£1,500 to the job. This is often the single biggest variable in the final price. On small jobs, scaffold can cost more than the repointing itself.
Mortar type
Using the right mortar is critical. Properties built before around 1920 require lime mortar. Lime mortar is softer and more breathable than modern cement — this is deliberate. It allows the wall to move slightly and lets moisture escape. Using cement mortar on old bricks traps moisture, which leads to brick faces spalling (crumbling away). Lime mortar costs approximately £10–£20 per m² more than standard cement.
Condition of existing joints
Badly weathered mortar that has already fallen away is quicker to repoint than very hard old mortar that needs mechanical cutting out. Expect higher labour costs if old joints are deep and solid.
Pointing profile
A simple flush or bucket-handle profile is quickest. Decorative profiles or very narrow joints take longer and cost more.
Signs you need repointing
- Mortar is crumbling or powdering when you press it
- Joints are recessed more than 5mm from the brick face
- Water is penetrating an external wall after rain
- Damp patches appearing on internal walls
- Moss or algae growing in the joints
- White powder (efflorescence) appearing on brick faces
Repointing vs full replacement
Repointing preserves the original brickwork. It is almost always the right choice unless bricks themselves are badly damaged. Replacing an entire brick wall costs far more and may not be necessary.
Can I repoint myself?
Small areas are possible for confident DIYers. However, using the wrong mortar on an older building can cause expensive damage. Getting the mix, consistency and joint profile right also takes practice. For any wall built before 1920, or for large areas, professional repointing is worth the cost.
Frequently asked questions
- How long does repointing last?
- Well done repointing with the correct mortar lasts 20–50 years. Cement mortar on older buildings often fails faster because it cannot flex with the wall's natural movement. Lime mortar is more durable in this context.
- How do I know if I need lime mortar?
- If your property was built before roughly 1920, it almost certainly needs lime mortar. This includes Victorian and Edwardian houses, older cottages, churches, and any flint or stone walls. A good bricklayer will advise you on the correct mix.
- Does repointing need planning permission?
- No. Repointing is routine maintenance and does not require planning permission. If your property is listed, you may need listed building consent before carrying out any external work — check with your local authority.
- Can I repoint in winter?
- Mortar should not be applied when temperatures are below 5°C or when frost is forecast. It is best to wait for settled dry weather. Spring and summer are ideal.