Exterior Wall Damage? We Repair the Cause, Not Just the Visible Mark

Exterior walls take the rain, frost, wind and accidental knocks that the inside of your home never sees. A chipped brick or hairline crack can be cosmetic; a bulging wall or a crack that steps diagonally through the masonry can be a structural warning. The trick is telling the two apart, repairing the cause as well as the surface, and choosing materials that work with the wall you actually have. Here is how our assessment and repair works.

What commonly goes wrong

Water is the leading cause of exterior wall damage. It runs down from leaking gutters, saturates porous brick and mortar, enters cracked render and expands in frost, gradually loosening surfaces and opening joints. Impact from vehicles, bins, garden tools and ladders chips brickwork and cracks render. Age erodes mortar joints until rain sits in the recesses and works deeper. Ground levels raised by new paving can bridge the damp course and draw moisture up into the wall. And sometimes the wall itself moves: settlement, subsidence, failed wall ties or a failing lintel can crack the masonry from within.

How we assess it

We start with the whole elevation. We look at the damage in context — where it sits, how deep it goes, whether it passes through the brick or just the surface, and what is above or below it. We check inside at matching positions for damp or cracks, note what the gutters and downpipes are doing, and inspect ground levels, sills, copings and openings for the routes water might be using. If the wall is bowed, or if a crack is large, stepped and growing, we treat it as structural: make safe, record what we find and refer you to a structural engineer. We do not patch over a movement problem.

Repair options

For local damage on a sound wall, the repair is targeted: cracked bricks are cut out and replaced with matching units, loose pointing is raked out and renewed with mortar appropriate to the wall's age and construction, small render cracks are filled with compatible materials, and chipped corners are repaired where a neat, durable result is possible. If damage is more widespread, we agree a defined repair area and use materials that match as closely as practical — exact matches in old brickwork are not always available, and we will explain the visual result before you decide.

Any cause is repaired at the same time: leaking gutter joints, cracked sills, failed seals, blocked drainage and raised ground levels. New mortar laid over a leaking gutter is an invoice for next year's repeat job.

Safety, access and limits

External work needs suitable dry conditions for mortar and render to cure properly. We use appropriate access equipment and never walk fragile roofs or improvise unsafe access; some high-level work may need scaffolding or a roofing specialist, and we will say so. If old panels, soffits or roofing material could contain asbestos, we do not disturb them and will recommend testing and specialist removal.

We cannot guarantee that a repaired wall will never crack again — buildings move with the seasons and weather varies. But fixing the water route and using compatible materials gives the repair the best chance of lasting, and we explain the aftercare you can do.

Aftercare and booking

Keep gutters clear, inspect mortar and render each spring and seal small cracks before frost opens them. Book through maintenance-men.com or by phone. You pay a booking fee when you book, and labour is charged hourly at a rate that depends on how soon you need the visit. The full cost is quoted and approved before work starts, with parts and materials quoted separately. Tell us where the damage is, what you think caused it and whether it has changed.