18/08/2026
The best time to look at your render is a dry afternoon in August. The worst time is a wet night in January.
Cracks, hollow patches and heavy moss are the early signs. A hairline crack looks like nothing, but it is a route for water into the wall, and the first hard frost turns that water into something that pushes render off a building. Tap the wall and listen. A hollow, drummy sound means that section has already let go behind a surface that still looks fine. Heavy moss and algae tell you the wall is holding moisture instead of shedding it.
The part people forget is that repairs need weather to cure. Patching, priming and finishing a wall properly takes dry days and reasonable temperatures, and by November there are not many of those left. Booking the work in late summer means it is done and set before anything gets tested.
What we offer
✅ Render repairs, patching and colour matched making good
✅ Through coloured and silicone thin coat render
✅ Monocouche one coat scratch render
✅ K Pro protective treatment to slow dirt and algae
✅ All aspects of external wall insulation (EWI)
✅ Approved applicators for K-Rend and Weber
INCA accredited and over 20 years in the trade, covering Brighton, Sussex, the South East and London. Not sure what you are looking at on your wall? Call us on 01273 686 368 or email [email protected] and we will come and assess it.