How to Price Lime Repointing Work in the UK

To price a lime repointing job, calculate the labour needed to remove defective mortar, prepare and refill the joints, protect the new work and return for aftercare. Add materials, access, waste disposal, business overheads and an allowance for defined risks. Then apply your markup to arrive at a selling price.

Selling price before VAT = (direct costs + allocated overheads + contingency) × (1 + markup rate).

You can divide that figure by the measured area to check the price per square metre. But price the work first and use the m² rate as a sense check, not the other way round. Thirty square metres of loose lime mortar on sound brickwork can take very different labour from the same area filled with hard cement or spread across awkward stonework.

1. Survey the Wall Before You Put a Price on It

Confirm what actually needs repointing

Not every weathered joint needs replacing. Sound historic mortar is worth retaining: unnecessary removal can damage the edges of bricks and stones. Both Historic England's repointing guidance and the Society for the Protection of Ancient Buildings (SPAB) recommend assessing the need for work before repointing.

Measure the areas you intend to treat, elevation by elevation. Record how you have allowed for doors, windows, reveals, returns and small isolated patches. A scattered repair across a large wall may involve more moving and setup than one continuous area of the same size.

Photograph representative sections and note:

• Whether joints contain loose lime mortar, hard cement or a mixture.
• Average joint width and the depth of defective mortar to be removed.
• Fragile brick or stone edges, cracks, damaged units and previous repairs.
• Irregular stonework, deep voids and unusually wide joints.
• Pipes, vegetation, cables and other obstructions.
• Exposure to driving rain, wind, direct sun and frost.

If the masonry is bulging, moving or unstable, arrange suitable professional assessment rather than pricing the problem as routine pointing.

Establish the specification and any heritage requirements

Agree the mortar and joint finish before calculating materials. The right choice depends on the original fabric, the existing mortar, exposure and the repair specification. Lime putty mortar, natural hydraulic lime mortar and ready-mixed lime products are not interchangeable by default. Avoid choosing a stronger binder simply because it sets faster; compatibility with the masonry matters. SPAB's guidance on lime explains why the characteristics of the binder need to suit the building.

For a historic building, allow for trial panels, matching colour and texture, and specialist advice or mortar analysis where justified. On listed buildings, check whether consent is required before work starts. In England, works that affect a listed building's special architectural or historic character may require listed building consent; procedures differ across the UK. The relevant planning or conservation authority can clarify the position. See GOV.UK's historic environment guidance.

2. Estimate Labour by Stage, Not by Guesswork

Labour is often the biggest uncertainty. Estimate each activity separately and use your own recorded productivity where possible.

Allow for difficult mortar removal

Loose lime mortar and dense cement pointing are not equivalent jobs. Hard cement can be difficult to remove without damaging soft masonry. A small, carefully controlled trial area may tell you more about labour time and the safest method than a broad industry price guide. If removal risks unacceptable damage, revisit the proposed scope and seek conservation advice rather than assuming every joint can be cleared.

Different stones, uneven courses, deep joints and specialist finishes also affect output. If tuck pointing or another decorative finish is required, price its skilled labour and sample work separately.

Separate working days from the calendar programme

A job may involve ten working days but occupy scaffolding for longer. Lime mortar needs suitable conditions to set and cure, and freshly pointed work may need protection against frost, rain, strong sun and rapid drying. SPAB highlights inadequate weather protection as a significant cause of repointing failure in its repointing advice.

Follow the specified mortar manufacturer's instructions and allow for labour to maintain protection, return visits, weather delays and any necessary extension of scaffold hire. Do not assume that protection ends when the last joint has been filled.

3. Calculate Lime Mortar Quantities Properly

Pricing bags of mortar from wall area alone is unreliable, particularly with stonework. You need the total length of joints, their average width and the depth to be filled.

For irregular masonry, mark out representative one-square-metre patches, add up the joint lengths and extrapolate carefully across similar sections. The Conserv pointing calculator describes this method and offers a useful cross-check.

Estimated mortar volume (m³) = total joint length (m) × average joint width (m) × fill depth (m).

Convert cubic metres into litres by multiplying by 1,000. Add an allowance for unavoidable waste and variation, then divide by the supplier's declared mixed yield per pack or batch. Round up to whole packs. Check whether the product's stated yield is for dry material or usable mixed mortar; do not treat bag weight and mortar volume as equivalent.

For site-mixed mortar, cost the binder and aggregate separately and use a defensible batch yield. Include delivery charges, minimum orders, mixing equipment, brushes, PPE, sheeting, hessian, fixings, water provision and disposal where required. Keep an eye on storage and handling restrictions: buying the right product is only part of getting it onto the wall.

4. Add Access, Overheads and a Defined Risk Allowance

Price the actual access arrangement

A ground-floor garden wall, a high gable and a chimney stack need different access plans. Obtain a quotation for safe access rather than assuming a generic scaffold charge. Confirm erection and dismantling, hire period, working lifts, pavement licences where relevant, loading arrangements and possible extensions.

The HSE's construction work-at-height guidance explains duties around planning, competence and the selection and inspection of suitable equipment. Access decisions should follow the site's risk assessment, not whichever option is cheapest on paper.

For chimneys, allow for roof protection and more exposed working conditions. Treat flashing, flaunching, pot replacement and rebuilding as separate scope items unless expressly included.

Recover overheads without counting them twice

Your direct labour cost should cover employees' wages and employment on-costs, or a realistic allowance for your own working time if you're a sole trader. Then allocate the overheads the job must help recover: insurance, van running costs, tools, estimating time, admin and other operating expenses. Choose a consistent method, such as an allowance per productive day or a percentage of direct costs.

If you already cost labour using an all-in charge-out rate that includes overhead or profit, do not add those elements again. Counting them twice makes the quote less defensible.

Our day rate calculator for sole traders can help you estimate your own charge-out rate from your ideal take-home pay, annual running costs and billable days. It already allows for running costs and estimated personal taxes; use it as a customer labour rate when checking the job's selling price.

A contingency should relate to a named uncertainty, such as a limited amount of concealed hard mortar. It is not a substitute for surveying the job or for agreeing a process for significant variations. Make clear which risks are included in the fixed price and which would require fresh approval if discovered.

5. Worked Example: Price a 30 m² Lime Repointing Job

This is a fictional illustration, not a current UK price benchmark, labour productivity standard or mortar product specification. Replace every assumption with survey findings, your own costs and supplier information.

Assumed job and mortar quantity

A contractor is pricing 30 m² of accessible brickwork requiring removal of defective pointing, joint preparation, a specified lime mortar finish, protection and cleaning. Brick replacement is excluded. The illustrative programme allows five operative-days for preparation, four for repointing and finishing, and one for set-up and aftercare: ten operative-days in total, costed at £250 per day. The aftercare allowance assumes that required visits can be covered within the time budget; an actual project may need more.

For the mortar calculation, assume 15 linear metres of joints per m², an average joint width of 10 mm and a fill depth of 25 mm:

1. Joint length: 30 m² × 15 m/m² = 450 m.
2. Unadjusted volume: 450 × 0.010 × 0.025 = 0.1125 m³, or 112.5 litres.
3. Illustrative waste allowance: 112.5 × 1.20 = 135 litres.
4. Illustrative mixed yield: 135 ÷ 15 litres per pack = 9 packs.

The 20% waste allowance and 15-litre pack yield are example inputs, not recommended universal allowances. Actual joint geometry and the manufacturer's declared yield govern the order quantity.

Direct costs

These figures are net costs for the illustrative VAT-registered contractor. Your own costing must also account for any purchase VAT you cannot recover.

Overheads, contingency and markup

Effective price per m² before VAT: £5,184 ÷ 30 = £172.80/m². This rate includes the example's labour, materials, scaffold and other allowances; it should not be compared directly with an advertised rate that excludes removal or access.

The 20% markup is applied to the £4,320 cost base. It gives a 16.67% planned margin on the £5,184 selling price (£864 ÷ £5,184), assuming the whole cost base is spent as allowed. Actual profitability changes with actual costs; if the contingency is not used, the outcome improves. Conversely, the £250 risk allowance is already in the price: do not charge the customer again for that same covered day as though it were an additional variation.

VAT and customer total

For a VAT-registered contractor supplying this example as standard-rated repair work, VAT is 20%:

HMRC's VAT Notice 708 generally treats work to existing buildings as standard-rated and specifically identifies repointing as repair or maintenance. Listed status does not, by itself, make repointing zero-rated. Other reliefs can apply to some qualifying projects, so check the actual circumstances rather than copying this example's VAT treatment onto every job.

If you are a VAT-registered subcontractor working for another construction business, also check whether the construction VAT domestic reverse charge applies. The example above assumes an ordinary customer invoice where the reverse charge does not apply.

6. Turn Your Costing into a Clear Quotation

Your customer needs to understand what they are buying, not your entire internal estimating spreadsheet. A useful lime repointing quotation identifies:

• The location and measured extent of the work, including any excluded areas.
• The agreed removal and preparation method, mortar specification and joint finish.
• Access and protection provisions, including responsibility for extended hire.
• Any sample panel, cleaning, making-good and final waste removal.
• The price, VAT treatment, payment terms, validity period and anticipated programme.
• Exclusions such as brick or stone replacement, structural repairs, concealed defects and unrelated chimney work.
• How unforeseen work will be assessed, priced and authorised before it starts.

Define provisional items carefully. A sum included as an allowance may change depending on what is found; a fixed price should not quietly become an open-ended estimate. For domestic customers, make the payable price and scope easy to understand.

Once your quantities, costs and markup are agreed, Quote Forge can help put the line items into a professional quotation and produce a branded PDF. Keep the original site photographs, measurements, supplier prices and productivity assumptions in your own job records so you can explain the figure later.

7. Common Lime Repointing Pricing Mistakes

The most expensive mistakes tend to happen before anyone starts pointing:

• Quoting an area rate without checking the joints. A number per m² cannot reveal cement removal difficulty or unusually deep voids.
• Assuming every joint needs replacing. That can add unnecessary labour and risk to historic masonry.
• Choosing the mortar after setting the price. The specified system affects material cost, labour and protection.
• Ignoring aftercare and scaffold time. Working days and elapsed days are not always the same.
• Using a material quantity calculator as a substitute for measuring. Calculators need realistic joint lengths, widths, depths and yield data.
• Confusing markup with margin. Twenty per cent added to costs is not a 20% share of the selling price.
• Leaving variations vague. A written scope and approval process protects both contractor and customer.

Frequently Asked Questions

How much should I charge per m² for lime repointing?

Build the price from your labour, mortar, access, overheads and risk allowance, then divide by the area. The worked example comes to £172.80/m² before VAT, but that figure is illustrative and includes scaffolding. It is not an average rate or a recommended selling price.

Does stone repointing need a different pricing method?

The basic costing method is the same, but irregular stonework can change joint lengths, widths, depths, removal difficulty and daily output considerably. Measure representative sections and consider a trial area rather than borrowing a brickwork productivity figure.

Why can lime repointing cost more than cement pointing?

Some lime repointing jobs need particularly careful removal, compatible materials, skilled finishing and longer protection or return visits. The difference is job-specific: compare like-for-like scope and access rather than assuming lime always commands a fixed percentage premium.

The Bottom Line

A sound lime repointing price starts with a proper survey and a realistic work programme. Measure the joints, confirm the mortar, allow enough time for preparation and protection, and recover your overheads before adding profit. Use the final £/m² figure as a check on your estimate—not the shortcut that creates it.