Professional Render Repair Services

Render can crack because of building movement, thermal expansion, poor preparation, incorrect application, insufficient reinforcement or failure of the background beneath it.

The location and pattern of the cracks often provide clues about the cause.

The underlying issue should be assessed before the cracks are filled, otherwise they may return.

Small, stable surface cracks can sometimes be opened and repaired using a compatible flexible material.

However, filling may not be suitable where the render is loose, hollow or affected by continuing movement.

Widespread cracking may require reinforcement mesh and a new basecoat across the complete elevation.

Blown render is render that has lost its bond with the masonry or basecoat beneath it.

It often sounds hollow when tapped and may eventually crack, bulge or fall away from the wall.

Blown sections must normally be removed back to a stable background before the area can be rebuilt.

Yes, local patch repairs are possible where the damage is isolated and the surrounding render remains stable.

The failed material is removed, the background is prepared and the section is rebuilt using compatible materials.

We will assess whether a local repair is sensible or whether the condition of the surrounding render makes a larger refurbishment more suitable.

We aim to match the existing texture and finish as closely as reasonably possible.

However, an exact match cannot always be guaranteed. Existing render may have faded, weathered or become stained over time, while newly applied material will initially look cleaner and brighter.

Where appearance is particularly important, painting or coating the complete elevation may provide a more consistent finish.

Damaged monocouche can be locally repaired, although matching the original colour and scraped texture can be difficult.

Differences in manufacturer, colour batch, age and weather exposure may leave the repair visible.

For larger areas, it may be better to repair the damage before applying a compatible finish across the full elevation.

Small areas of silicone render can often be repaired where the basecoat and surrounding system remain sound.

The damaged finish may need to be removed, the background repaired and a compatible silicone coating applied.

Colour and texture variation can still occur, particularly where the original render has been exposed to weather for several years.

Local pebble dash repairs may be possible where the surrounding material remains securely bonded.

Matching the original aggregate, colour and distribution can be challenging, especially on older properties.

Where the pebble dash is widely cracked, hollow or badly weathered, removal or a complete refurbishment system may provide a better result.

Render repairs can help where moisture is entering through cracks or failed exterior surfaces.

They will not resolve rising damp, leaking gutters, defective roofs, failed flashing or other unrelated sources of moisture.

Any signs of damp should be investigated so the actual cause can be repaired rather than only treating the visible symptoms.

Not always.

Where most of the existing render remains firmly bonded, it may be possible to remove only the failed sections and install a compatible repair or refurbishment system.

Complete removal may be recommended where the render is extensively hollow, unstable or unsuitable for overcoating.

Silicone render can be used as part of a refurbishment system, but damaged walls must be repaired first.

Loose render cannot simply be covered. Failed areas must be removed, cracks treated and the background stabilised.

A mesh-reinforced basecoat may then be installed before the silicone primer and topcoat are applied.

A cork coating may be suitable once the existing walls have been properly assessed, repaired and prepared.

Its flexible and breathable properties can make it an option for certain exterior refurbishment projects.

The correct repair and preparation system will depend on the existing surface and condition of the property.

Yes, many repaired render surfaces can be painted once the new material has fully cured and the background is suitable.

Painting the complete elevation can help reduce the visible difference between new repairs and older surrounding render.

A breathable exterior coating should be selected where appropriate for the existing wall construction.

The lifespan of a repair depends on the cause of the original damage, condition of the surrounding render, quality of preparation and materials used.

A repair completed over a stable background should perform considerably better than a cosmetic repair applied over loose or moving render.

Structural movement and unresolved water ingress can cause damage to return regardless of the surface material used.

The cost depends on:

• Size and location of the damaged area
• Type of existing render
• Amount of loose material requiring removal
• Height and accessibility of the walls
• Scaffolding requirements
• Whether a local repair or full elevation refurbishment is needed
• Type of replacement finish selected

Photographs can help with an initial assessment, but we may need to inspect the property before providing a final quotation.