Repointing cost by scope of work
Costs below assume standard cement:lime:sand mortar and scaffold access where needed. Lime-only mortar adds 20-30%. London/South East rates are at the upper end.
| Scope | Area (approx.) | Typical cost |
|---|---|---|
| Single elevation (front or rear) | 25-40 m2 | £500 to £2,000 |
| Two elevations (semi-detached) | 50-80 m2 | £1,000 to £3,500 |
| Whole terraced house | 80-110 m2 | £1,600 to £4,500 |
| Whole detached house | 120-180 m2 | £2,500 to £7,000 |
| Chimney repointing (inc. scaffolding) | Spot repair | £500 to £1,500 |
| Small patch repair (up to 5 m2) | Spot repair | £150 to £400 |
Add £500-£1,500 for scaffolding on two-storey work. Lime mortar on pre-1919 brickwork costs 20-30% more.
What affects the cost of repointing?
Several factors can push your repointing quote up or down significantly:
- Mortar type: standard cement mortar is cheapest, but pre-1919 brickwork must use breathable lime mortar to prevent moisture trapping and spalling. Lime mortar costs 20-30% more in materials and labour.
- Accessibility and scaffolding: single-storey or ground-floor work rarely needs scaffolding. Two-storey elevations typically require scaffold, adding £500 to £1,500.
- Depth of deterioration: if joints are deeply eroded (more than 10 mm) raking out takes significantly longer, increasing labour hours.
- Brick type: soft handmade or reclaimed bricks require more care during raking to avoid damage; modern engineering bricks are more forgiving.
- Location: London and South East labour rates are typically 20-30% higher than the Midlands or North.
- Access restrictions: working over extensions, conservatories, or on awkward elevations increases scaffold complexity and cost.
- Extent of associated repairs: if bricks are frost-damaged or spalled, individual bricks may need cutting out and replacing at £20-£50 each.
- Time of year: repointing should not be carried out in freezing temperatures; winter scheduling may affect availability and quotes.
Lime mortar vs cement mortar: which is right?
The mortar type is one of the most important decisions in a repointing job, both for performance and cost. Standard cement mortar (typically a 3:1 or 4:1 sand:cement mix) is cheaper and sets hard quickly, but it is less breathable and more rigid than traditional lime mortars.
On properties built before around 1919, the bricks themselves are softer and more porous. Using hard cement mortar on these walls traps moisture inside the brick rather than allowing it to evaporate through the joint. Over time this causes the face of the brick to spall and crack, leading to expensive brickwork repairs.
Lime mortar (NHL 2, NHL 3.5, or hot lime putty mixes) is breathable, flexible, and self-healing to a degree. It is essential for listed buildings, conservation area properties, and most Victorian and Edwardian stock. It costs around 20-30% more in both materials and labour, partly because it takes longer to apply and cure.
If in doubt, a specialist mason or a RICS surveyor can advise on the correct specification for your property. Getting this wrong is an expensive mistake.
When does brickwork actually need repointing?
Repointing is not a routine maintenance job; it is needed when clear signs of deterioration appear:
Mortar erosion of 10 mm or more
Run your finger along the joint. If the mortar has receded 10 mm or more from the brick face, water can pond in the recess and penetrate the wall. This is the key threshold for action.
Visible cracking or crumbling
Mortar that crumbles to powder when pressed, or shows horizontal or step-pattern cracking, has lost its integrity. Spot repairs are possible for small areas, but extensive cracking may indicate structural movement - consult a structural engineer before repointing.
Damp patches on internal walls
Penetrating damp (horizontal tide marks on internal walls rather than rising at the base) often traces back to failed pointing. A damp specialist can confirm the source before you spend on remediation.
Failed window or door surrounds
Joints around frames, lintels, and sills deteriorate faster than the main wall. These are common entry points for water and are worth inspecting annually.
Pitfall: using the wrong mortar on old brickwork
Repointing a Victorian or Edwardian house with hard OPC cement mortar is one of the most common and costly DIY and trade mistakes. The rigid mortar traps moisture, which then forces its way through the softer brick face rather than the joint. Within a few years, bricks begin to spall and lose their faces, requiring full brick replacement at £20-£50 per brick plus scaffolding. Always specify lime mortar for pre-1919 properties and ask your contractor to confirm the mix they intend to use.
Plan ahead with our refurbishment planner
Our planner helps you set a realistic refurbishment reserve before you buy. Add repointing, scaffolding, and any associated damp treatment to your survey-based budget so you go into negotiations knowing your true cost of ownership.