The short answer
Rendering a garden wall in the UK typically adds around £40–£80 per square metre, depending on the render type and the number of faces done. Standard cement (sand-and-cement) render sits at the lower end, while premium silicone or thin-coat systems cost more but resist cracking and weather better. Rendering is often combined with a concrete block wall, and that pairing — block built and rendered — is usually the lower-priced finished option, commonly about £100–£160 per square metre all in, because blocks are quicker to lay than facing brick and the render gives a clean face. Whether you render one or both sides also moves the figure.
Render is both a finish and a layer of weather protection. Here is what it costs to add, how the render types compare, and when rendering a block wall is the sensible lower-priced route to a finished wall.
Typical UK costs
- Rendering (added)£40–£80 / m²
- Standard cement renderlower end
- Silicone / thin-coathigher end
- Block built + rendered~£100–£160 / m² all in
- One or both facesmoves the figure
What rendering costs and what changes it
- Render type: standard sand-and-cement is the lower-priced option; silicone, monocouche or thin-coat systems cost more but crack and weather better.
- Faces: rendering both sides of a freestanding wall is roughly double rendering one.
- Surface prep: an old or uneven wall may need patching or a base coat first, adding to the rate.
- Finish: a coloured or textured top coat costs more than a plain painted render.
| Item | Typical figure | Notes |
|---|---|---|
| Rendering added | £40–£80 / m² | by render type & faces |
| Standard cement render | lower end | paint over to finish |
| Silicone / thin-coat | higher end | more crack-resistant |
| Block wall + render | £100–£160 / m² | lower-priced finished wall |
Indicative UK figures for guidance. Sources: BookaBuilderUK and rendering cost guides.
When a rendered block wall is the value route
If you want a smooth, finished, painted wall rather than exposed brick, a concrete block wall rendered on the visible face usually works out lower in cost than facing brick. Blocks are larger and faster to lay, and the render does the decorative job that expensive facing bricks would otherwise do. That is why a rendered block wall, at around £100–£160 per square metre all in, is often the lowest-priced route to a finished garden wall. If you prefer the look of brick or stone, you pay for the material — render is the way to get a clean, modern face without it.
Want a rendered wall quote?
We'll match you with a vetted bricklayer or landscaper who specifies the right wall and render system, details it to shed water, and quotes per square metre with the faces and finish set out.
Frequently asked questions
How much does it cost to render a garden wall?
Rendering typically adds around £40–£80 per square metre depending on the render type and how many faces are done. Standard cement render is at the lower end; silicone and thin-coat systems cost more but resist cracking better.
Is a rendered block wall cheaper than brick?
Usually yes. A concrete block wall rendered on the visible face is often the lower-priced finished route, commonly around £100–£160 per square metre all in, because blocks lay faster than facing brick and the render provides the finished face.
Should I render one or both sides of a garden wall?
It depends on which faces are visible. Rendering both sides roughly doubles the render cost, but a freestanding wall exposed on both sides is often rendered both faces for appearance and weather protection.
Sources & further reading
Figures on this page are typical UK ranges drawn from published sources and depend on your specific wall. They are guidance, not a quotation.