Rendering Cost Calculator UK (2026)

Use this Rendering Cost Calculator to get a quick estimate for exterior wall rendering based on wall area, render type, property storeys, access, region, VAT and contingency.

The result is designed for budgeting only, so your final quote may change after a tradesperson checks the wall condition, scaffolding access and preparation work.

Estimate your rendering cost

Enter your wall measurements and choose your render options to see an estimated UK rendering cost, including labour, scaffolding, waste removal, VAT and contingency.

m²
The system applied to your external walls.
Property Storeys
Budget buffer for unforeseen issues.
%
%
weeks
Used to refine region estimate.
Estimated Cost
£0
Low: £0 - High: £0
Typical cost per m²: £0
Item Cost
Rendering & Labour £0
Preparation & Repairs £0
Scaffolding & Access £0
Waste Removal £0
VAT (20%) £0
Total with Contingency £0
Estimated Duration: 3-5 days

Quick Comparison (Based on current area)

Type Typical/m² Total

How the rendering cost calculator works

This tool provides a ballpark estimate for external wall rendering in the UK. It combines typical unit rates (material and labour) for different render systems with specific multipliers for your region, property height (scaffolding costs), and surface condition.

The calculation assumes standard application procedures (beading, mesh, basecoat, and topcoat). We calculate a "Low", "Typical", and "High" scenario to account for variations in finish complexity and regional labour availability.

What affects the cost of rendering in the UK?

  • Render Type: Sand and cement is generally the cheapest, while silicone and monocouche systems cost more due to material benefits like breathability and colour retention.
  • Wall Condition: "Hack-off" (removing old render) and extensive patching significantly increase labour costs.
  • Access & Scaffolding: Scaffolding is a major cost driver. A single-storey bungalow is cheaper to access than a three-storey townhouse or a property on a slope.
  • Region: London and the South East typically command higher labour rates (approx. +15%) compared to the North or Wales.
  • Insulation (EWI): Adding External Wall Insulation adds substantial material cost and depth to the system, but improves energy efficiency.

Typical rendering prices per m² (UK)

Render System Typical Cost per m² Finish Type
Sand & Cement £35 - £55 Painted or Smooth
Monocouche £45 - £70 Through-coloured
Silicone / K Rend £50 - £85 Thin coat, Textured
External Wall Insulation (EWI) £90 - £150+ Insulated Render System

FAQs

Is rendering worth the cost?
Yes, rendering significantly improves the appearance of a property and protects the brickwork from weather damage. It can also increase property value and improve thermal efficiency if insulation is added.
How long does external wall rendering last?
A high-quality silicone or monocouche render should last 20–30 years with minimal maintenance. Sand and cement render typically needs repainting every 5–10 years and may crack sooner if not applied correctly.
Do I need planning permission to render my house?
Usually, no. Rendering is considered permitted development. However, if your house is listed, located in a conservation area, or you are changing the exterior finish significantly (e.g., to stone cladding), you should check with your local planning authority.
What is the difference between K Rend and standard render?
K Rend is a brand of silicone thin-coat render. It is a modern, polymer-modified system that is more flexible and breathable than traditional sand and cement, reducing the risk of cracking and damp.
Does rendering stop damp?
Breathable renders (like silicone or lime) allow moisture trapped in the walls to escape, which can help with damp issues caused by solid walls. However, render is not a waterproof membrane; rising damp or penetrating damp from structural defects must be addressed first.
Can I render over existing render?
Yes, provided the existing render is sound. If the old render is "hollow" (drummy) or cracked, it usually needs to be hacked off to ensure the new render adheres properly.
When is the best time of year to render?
Ideally in spring, summer, or early autumn. Rendering should not be done in freezing temperatures (below 5°C) or in direct hot sunlight, as this can cause the render to cure too quickly and crack.
What is through-coloured render?
Through-coloured render (like monocouche) has pigment mixed throughout the material. This means it does not require painting after application and if scratched, the colour remains consistent underneath.