Crack Stitching Costs UK — What to Charge to Repair Cracked Brickwork in 2026

What Is Crack Stitching?

Crack stitching — also called helical bar stitching or "reinforced masonry repair" — is a remedial technique for cracked brickwork and blockwork. Stainless-steel helical bars are bonded into raked-out horizontal mortar bed joints that run across a crack. The bars re-tie the masonry either side of the crack, redistribute load and stop the crack from reopening. Bars are installed in pairs across the crack at set bed-joint courses — typically every 4–6 courses — so the repair is invisible once the joints are repointed to match the existing wall.

It's used to repair cracking from a range of causes: subsidence or heave settlement once the ground movement has been stabilised, thermal movement, bay window movement, lintel failure, wall-tie failure, and a simple lack of movement joints in long runs of masonry. The critical point — and the one that separates a proper structural repair from a cosmetic bodge — is that the underlying cause must be diagnosed and addressed first. Stitching a crack while the wall is still moving simply moves the crack somewhere else.

Quick Reference: Crack Stitching Prices UK 2026

These are indicative UK ranges for 2026. Price toward the top end for height and difficult access, brickwork that's hard to match, double-leaf walls, or where an engineer's design must be followed to the letter.

How Crack Stitching Is Priced

There are two common ways to price the work, and it's worth knowing both so you can quote the way that suits the job.

Per Linear Metre of Stitching

The most transparent method is to price per linear metre of helical bar installed, including raking out the bed joint, the resin or grout, the bar itself and the repointing to make good. UK rates typically run £40–£90 per metre. Remember that you install bars in pairs at set courses up the crack, so a single 2-metre vertical crack stitched every 4–6 courses can use a surprising amount of bar once you count both sides and multiple courses — measure the actual installed length, not just the crack length.

• Per metre of helical bar installed: £40–£90/m

Per Crack / Per Job

For most domestic enquiries, clients prefer a fixed price per crack or for the whole job. A single typical settlement or thermal crack repair commonly lands at £350–£900 once you include set-up, materials, repointing and making good. A larger crack, or a property with several cracks needing stitching plus restraint, more typically runs £1,000–£3,000+ — and considerably more where extensive scaffolding or an engineer's design is involved.

• Single typical crack repair: £350–£900
• Larger or multi-crack job: £1,000–£3,000+

Method and Components

Understanding exactly what goes into the repair helps you price it accurately and explain the value to the client. A typical helical stitch involves:

• Raking out the bed joint: Cutting out the horizontal mortar joint to the required depth on both sides of the crack — usually 25–35mm of cover is specified — using a dust-extracted grinder or raking tool.
• Helical stainless bars: Austenitic stainless-steel helical bars (commonly 6mm or 8mm) cut to length, sized to give adequate embedment each side of the crack.
• Thixotropic grout or resin bonding: A non-slump cementitious grout or resin pumped or gunned into the slot. The bar is pushed into the grout bed so it's fully encapsulated and bonded to the masonry.
• Crack injection / filling: The crack itself is filled or injected so water can't track in and so the wall reads as monolithic again.
• Repointing and making good: The raked joints are repointed to match the existing mortar colour, joint profile and texture so the repair is invisible. Matching weathered mortar and brick is the part clients judge you on.

What Drives the Cost

Two crack stitching jobs that look similar on paper can differ by hundreds of pounds. The main cost drivers are:

• Number and length of cracks: More cracks and longer cracks mean more bars, more raking out and more repointing. This is the single biggest variable.
• Crack width and depth: Hairline cracks may only need surface stitching; wide, deep cracks may need crack injection, deeper bars and more making good.
• Single vs double leaf: A single-leaf wall is stitched once; a cavity wall may need both leaves treated, and the outer leaf may also need lateral restraint ties back to the inner leaf or structure.
• Access, height and scaffold: Gable-end cracks at two storeys need a tower or scaffold. Cracks at ground-floor level off a step ladder cost far less to reach.
• Lateral restraint or engineer's design: Where the failure involves wall-tie failure or bulging, you may need to add helical restraint ties or follow a structural engineer's specific design — both add cost and time.
• Matching brick and mortar: Heritage, handmade or lime-mortar properties take longer to match and may need specialist materials. Build that into the price.

The Structural Engineer's Report

For anything beyond minor thermal cracking, a structural engineer's report is often needed — and on subsidence-related work it's usually essential, both for the design and for the client's peace of mind (and sometimes their insurer's). Expect a report to cost the client £300–£700 depending on the engineer and the complexity of the inspection.

The report should confirm the cause of the cracking, state whether movement has stabilised, and specify the repair — bar size, spacing, embedment and any restraint ties. Where a job is genuinely structural, you should be working to that spec, not freelancing your own design. Quote the report as a separate line, or recommend the client commissions it before you price the remedial work, so your stitching quote is based on a defined scope rather than guesswork.

What's Included in a Typical Quote

A clear scope protects you and reassures the client. A standard crack stitching quote should set out:

• Raking out the bed joints across the crack at the specified courses
• Supply and installation of stainless helical bars in pairs at the specified spacing
• Thixotropic grout or resin bonding to fully encapsulate the bars
• Crack injection or filling where the crack width requires it
• Repointing and making good to match the existing brickwork as closely as practical
• Removal of debris and a tidy site on completion
• Your guarantee on the workmanship (and the system manufacturer's product guarantee)

Be explicit about what is not included — scaffolding, the engineer's report, addressing the underlying cause (such as underpinning, tree removal or drain repairs), and exact colour matching on weathered heritage brick. Excluding these in writing prevents disputes later.

Worked Example: A Typical Settlement Crack

Consider a common job: a stepped crack running roughly 1.8m up from a window opening on a two-storey semi, caused by historic settlement that an engineer has confirmed is now stable. You'll stitch the crack with paired bars every fourth course.

• Helical bar installed (paired bars over ~7 courses, both sides): roughly 9–11m at £55/m — £500–£600
• Crack injection and filling: £60–£100
• Repointing and making good to match: £120–£180
• Tower hire / access for upper section: £100–£150

That lands the stitching itself around £780–£1,030, before any separately-quoted scaffolding or the engineer's report the client has already paid for. For a single, clean ground-to-first-floor crack with easy access, you'd be nearer the £400–£700 mark. Always measure the actual installed bar length on site — the number of courses and whether you treat one or both leaves changes the figure quickly.

Practical Pitfalls to Avoid

• Diagnose and fix the cause first: Stitching a crack while the ground is still moving, a drain is still leaking or a tree is still drawing moisture is a wasted repair. Make the client deal with the cause — or get an engineer to confirm movement has stopped — before you stitch.
• Don't just cosmetically fill: Filling a structural crack with mortar and walking away is the classic bodge. It looks fixed for a season and then reopens, and your name is on it. If it's structural, stitch it properly.
• Use a proper CE/UKCA helical system: Where the repair is structural, use a recognised CE/UKCA-marked helical system installed to the manufacturer's and engineer's spec — bar size, embedment and grout matter. Cheap unbranded bars and the wrong grout undermine the guarantee.
• Monitor before repairing ongoing movement: If there's any doubt the movement has stopped, fit tell-tales or crack monitors and watch the crack over a few months before committing to a permanent repair.
• Set guarantee expectations: Clients expect a meaningful workmanship guarantee on stitching — often 10 years or more on a properly designed and installed system. Be clear about what your guarantee covers, and note that it relies on the cause having been addressed.

Quoting Tips — What to Check Before You Price

Crack stitching quotes go wrong when the operator prices off a photo or a phone description rather than a proper inspection. Before you commit a price, check:

• Is the movement live or historic? A widening crack changes everything — you may need monitoring before any repair.
• Has the cause been identified? Subsidence, heave, lintel failure, wall-tie failure and lack of movement joints all need different remedial work alongside the stitching.
• Single or double leaf? Decide whether you're treating one leaf or both, and whether lateral restraint ties are needed.
• What's the access? Height, neighbouring boundaries and ground conditions all drive scaffold or tower cost — quote it separately.
• Can you match the brick and mortar? Inspect the existing mortar colour, joint profile and brick type so your making-good is invisible.
• Is an engineer's report in place? If not, recommend one before you price structural work.