Good brickwork is one of those things most people only notice when it’s wrong. The pointing that doesn’t match, the repair that stands out, the garden wall that looks like it was built by a different hand to the house it sits beside. When brickwork is done well, it disappears into the building. When it isn’t, it’s permanently visible.

Most general builders subcontract brickwork to whoever is available. When it’s done by people who lay bricks every day, the difference shows.

What Brickwork Contractors Cover

Brickwork contractors cover a wider scope than most homeowners realise when they start searching for brickwork companies near them. The trade includes:

  • Structural brickwork for new builds, extensions, and load-bearing walls

  • Repointing and masonry repair where mortar has failed or is causing moisture ingress
  • Garden walls and boundary structures
  • Chimney repairs, rebuilds, and repointing
  • Decorative brickwork including corbelling, soldier courses, and arched openings
  • Stone masonry for period properties, dry stone walls, and stone-faced structures

The scope of what you need will determine who you should be talking to. A contractor experienced in structural work on renovations is a different proposition from one who primarily builds garden walls.

What to Check Before You Hire

Mortar specification

This is one of the most common points of failure in brickwork repair. Wrong mortar is worse than no mortar. For buildings constructed before 1919, lime-based mortar is almost always the correct specification. Cement-based mortar is harder than the surrounding brick, traps moisture, and accelerates decay in older masonry. A contractor who specifies the same mortar for every job isn’t assessing what the building needs.

Whether trades are employed in-house or subcontracted

Continuity matters. On a project that involves both first and second fix, a company where the same carpenters see the work from stud walls through to final fit is one where nothing gets passed off and nobody shifts blame when something isn’t right. Ask directly: are your carpenters employed by you, or brought in per job?

In-house bricklayers vs subcontracted labour

Ask directly whether the people doing the work are employed by the company or sourced per job. In-house bricklayers are accountable to a consistent standard. Subcontracted labour varies in quality and has no ongoing relationship with the contractor’s reputation. On a project like an extension or renovation, this distinction matters considerably.

Brick matching

For repair or extension work, brick matching is critical. A repair that stands out is a permanent reminder that work was done. Good brickwork contractors use reclamation yards, specialist suppliers, and regional stock to find the closest available match, and they show you options before a single course is laid.

FMB membership

Federation of Master Builders accreditation means the company has been independently assessed on workmanship, customer service, and financial standing. It also provides access to independent dispute resolution if something goes wrong. Check for it before committing to anyone.

Repair or Rebuild: How to Tell the Difference

Not every contractor will give you a straight answer on this. There’s a significant cost difference, and the recommendation should be based on what the structure needs.

Repair is right when the structure is sound and the damage is localised. Failed mortar joints, a cracked section above a repaired lintel, or surface erosion on otherwise stable brickwork all fall into this category.

Rebuild is necessary when the structure itself has moved, or when the original construction was never adequate. A leaning garden wall with no proper foundation needs rebuilding, not repointing. A contractor who recommends repair in that situation is either optimistic or not looking carefully enough.

What Brickwork Cracks Are Telling You

Cracks are rarely all the same. The pattern tells you what’s happening underneath.

Crack type What it looks like Likely cause What to do
Hairline cracks in mortar joints Fine, surface-level lines in the pointing Normal thermal movement Monitor. Usually cosmetic unless spreading
Stepped cracks following mortar joints Diagonal, stair-step pattern across courses Foundation movement or settlement Investigate before any repair is carried out
Horizontal cracks Running across the wall, often mid-height Failed wall ties in a cavity wall Structural assessment needed
Widening cracks Any pattern where the gap is increasing Active structural movement Urgent investigation. Do not repair until cause is identified

Each entry reflects the most common cause for that pattern. Stepped cracks can also result from lintel failure, and horizontal cracking can occur from differential movement between a wall and floor structure. A proper assessment will confirm the cause before any repair is recommended.

Cracks that are widening over time should not be repaired until the cause is understood. Filling a crack in a moving wall is temporary at best.

What to Watch Out For

A quote without a mortar specification is a red flag. So is a contractor who can’t tell you where the replacement bricks are coming from, or who can’t show you completed projects at a comparable scope. Pressure to decide quickly, no written contract, and reluctance to assess the structure before quoting are all worth noting before you proceed.

A Project Worth Looking At

The Claremont Avenue Victorian extension case study covers carefully matched brickwork delivered as part of a sensitive renovation, combining traditional materials with modern construction so the new work sits naturally alongside the original house. Browse the full case studies for more examples of brickwork across different project types.

What Should You Do Next?

Cognitive Construction carries brickwork and masonry in-house. Our bricklayers are on our payroll, mortar is specified for the building rather than the job, and brick is sourced to match before a single course is laid. Every project is backed by our FMB accreditation and 10-point guarantee.

FAQs

Done correctly with the right mortar for the substrate, repointing should last 20 to 30 years or more. Done with the wrong mortar, it can fail within a few years and cause damage to the surrounding brickwork in the process.

Not usually. A wall adjoining a highway that exceeds 1 metre, or any wall exceeding 2 metres, may require planning permission. Properties in conservation areas may have lower thresholds. Your contractor should advise on what applies before work begins.

In most cases, a close match is achievable. Exact matches are harder on properties where the original bricks were handmade or sourced from local yards that no longer exist. Options are presented before any work starts.

It depends on the pattern. Hairline cracks in mortar are usually thermal movement. Stepped cracks can indicate foundation settlement. Horizontal cracks in cavity walls often point to failed wall ties. See the table above for a fuller breakdown, and get any widening crack investigated before repair.

If you’re looking for brickwork companies near you in Milton Keynes or across Buckinghamshire, Bedfordshire, and Northamptonshire, get in touch.

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