Cracks above a door or window, or brickwork that's starting to sag? A failed lintel is often the cause. We repair and replace concrete and steel lintels across Swansea — supporting the opening safely and making good so it's strong, level and tidy again. Book a free assessment and we'll take a look.

The lintel is the beam that carries the weight of the wall above a door or window. When a lintel fails — through age, rusting steel, cracked concrete or movement — you'll often see stepped or diagonal cracks in the brickwork above the opening, sagging, or doors and windows that suddenly stick. Left alone it only gets worse. We assess the lintel and the surrounding brickwork, safely prop and support the opening, then repair or replace the lintel with the correct type and specification. Once it's in, we rebuild and repoint the brickwork above and make good so you'd never know there was a problem. It's a job that needs doing properly for safety — and we serve homes and landlords right across Swansea and the Gower peninsula.
Common signs are cracks in the brickwork above a door or window (often stepped or diagonal), sagging above the opening, or doors and windows that suddenly stick. We can inspect it and confirm the cause.
It depends on the size of the opening and whether the lintel can be repaired or needs replacing. We assess it first and give you a clear, no-obligation quote. Book a free assessment to get started.
It's best not to — a failing lintel carries the load above the opening and will get worse over time. Getting it assessed early keeps the repair simpler and your property safe.
Yes. After fitting the new lintel we rebuild and repoint the brickwork above and make good, so the finished opening looks neat and blends in.
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Lintel repair & replacement across Swansea & Gower. Failed, cracked, sagging or rusting lintels above doors & windows put right. Book a free assessment.