In short
- Coloured render, also called through-coloured render, has pigment mixed through the material at the factory. There is no paint layer to peel or repaint.
- Silicone thin-coat and monocouche systems, including K-Rend and Weber, each offer large colour ranges.
- Very dark colours absorb heat; manufacturers often restrict them on some systems, particularly over external wall insulation.
- Always approve a sample panel on your own wall. Colour charts and screens do not show how a shade will look on a whole elevation.
How coloured render works
Older houses were rendered in sand and cement and then painted. The colour sat in a thin film of masonry paint that weathered and needed renewing every five to ten years. Modern coloured renders work differently: the pigment is part of the render itself. If the surface is scuffed, the same colour is underneath.
The two main families are:
- Silicone thin-coat, a 1 to 2 mm through-coloured topcoat over a meshed base coat. It offers the widest colour ranges and the crispest finish. See silicone render.
- Monocouche and one-coat scraped renders, a 15 to 20 mm through-coloured coat scraped back to texture. Colour ranges are smaller but cover the popular shades. See monocouche render.
Popular colours on Surrey houses
| Colour family | Works well on | Things to know |
|---|---|---|
| Soft and warm whites | 1930s semis, Arts and Crafts houses, cottages | Most forgiving; suits clay roof tiles |
| Brilliant white | Contemporary remodels | Shows dirt and algae fastest |
| Light and mid greys | 1970s–1990s houses, anthracite windows | Can look cold on north elevations |
| Stone, buff and sand | Rural settings, period homes | Sits well with Bargate stone and brick |
| Sage and soft greens | Feature elevations, rural homes | Choose a muted tone; bright greens date |
| Charcoal and anthracite | Feature panels, plinths | Heat absorption and finish restrictions |
Dark colours and light reflectance
Every render colour has a light reflectance value (LRV), from 0 for black to 100 for pure white. Low-LRV colours absorb more heat from the sun, which increases thermal movement and the risk of cracking or blistering. Many manufacturers restrict dark shades on some systems, and especially over insulation boards. If you want a dark colour, we confirm in writing that it is approved for the exact system on your wall before you commit. Our render colour guide explains LRV in more detail.
Matching an existing coloured render
Colour can vary between production batches, and weather and suction during application change how the same colour cures. To keep a consistent result:
- Order one batch for each elevation where possible.
- Finish each elevation in a single continuous pass.
- Put any joins at corners, beads or downpipes.
- Keep a reference sample panel.
For an extension, see rendering extensions and new builds.
Conservation areas and colour
Repainting or recolouring an already rendered house usually needs no permission. But in some Surrey conservation areas, Article 4 directions remove permitted development rights for painting or changes to front elevations, and listed buildings need consent for most colour changes. Rendering a brick house in any colour for the first time in a conservation area or the Surrey Hills National Landscape needs planning permission. See planning permission for rendering.
What coloured render costs
Colour rarely changes the price per m² for standard shades. Published 2026 ranges are about £55–£90 per m² for monocouche and £60–£120 for silicone thin-coat, plus scaffolding and preparation. Some special colours carry a small premium or longer lead time. See the cost guide.
Refreshing a faded or stained coloured render
Algae and dirt often make coloured render look faded when the colour is still sound underneath. A biocidal soft wash usually restores it. If you want a different colour, a breathable silicone facade paint can recolour sound render, although you then take on repainting. See render cleaning.
Questions people ask
Does coloured render fade?
Through-coloured renders are made with UV-stable pigments and fade slowly. What looks like fading is often dirt or algae, which cleaning removes.
Can I have any colour I like?
Most systems offer large ranges, but very dark shades may be restricted, particularly over insulation. Confirm the colour is approved for your system.
What is the most popular render colour in Surrey?
Soft whites and off-whites, followed by light greys. Stone and buff tones are common in rural and period settings.
Do I need permission to change my render colour?
Usually not, unless the building is listed or an Article 4 direction covers painting in your street. Rendering a brick house for the first time in a conservation area or the Surrey Hills needs planning permission.