Cost guide
How much does silicone render cost?
Last updated 11 July 2026
Silicone render costs £60–£75 per m² supplied and applied in 2026 — roughly 25–35% more than monocouche. A 3-bed semi typically lands £9,000–£12,500 including scaffold. The premium buys a self-cleaning hydrophobic finish, 1,000+ colours and 25-year warranties from Weber and K Rend.
Price by house type
| House type | Typical price | Duration |
|---|---|---|
| 2-bed terrace (full wrap) | £6,000–£8,500 | 4–5 days |
| 3-bed semi-detached | £9,000–£12,500 | 5–7 days |
| 4-bed detached | £13,000–£18,000 | 7–9 days |
Prices updated 11 July 2026 · includes scaffold, materials, labour and waste.
Current per-m² rates
| Work | Typical price |
|---|---|
| Silicone thin-coat render | £60–£75 per m² |
| 3-bed semi-detached | £9,000–£12,500 per house |
Prices updated 11 July 2026 · Every project is quoted individually after a free survey.
Why silicone costs more than monocouche
Silicone is a multi-coat system: polymer basecoat, embedded reinforcement mesh, tinted primer, then the silicone topcoat. That's two more site visits and more material than monocouche's single sprayed coat — hence the 25–35% premium. What you get back: crack resistance from the mesh, a hydrophobic self-cleaning surface, and colour stability measured in decades.
Whole-life cost: where silicone wins
Painted render needs a £2,000–£4,000 repaint every 5–10 years. Silicone never does — the pigment is in the topcoat and the surface sheds dirt with rainfall. Over 25 years, a silicone system is routinely cheaper than 'cheap' render plus two repaints, before you count scaffold each time.
What's in a Namis silicone quote
Scaffold, preparation, the complete manufacturer system (K Rend Silicone, Weber, PRB or Fassa), colour matching, waste disposal and warranty registration. Fixed and written within 48 working hours of survey.
Related questions
Silicone costs roughly 25–35% more than monocouche supply-and-fit — £60–£75 per m² against £50–£65. The premium reflects two extra coats (base coat, mesh and finish), a far wider colour range and a longer expected lifespan with no repaint cycle.
Silicone render lasts for decades, with long-term manufacturer warranties provided on the manufacturer's own terms. Because the topcoat is paint-free and self-cleaning, you avoid the 5–10 year repaint cycle of traditional render.
Silicone systems offer well over a thousand colour options — far beyond the smaller monocouche palette. The polymer topcoat is colour-stable and hydrophobic: rain beads off and carries surface dirt with it, keeping the finish clean for decades.
Costs are assessed per m² and driven by property size, access, scaffolding, waste disposal and the chosen system. As a guide: monocouche render £50–£65 per m², silicone render £60–£75 per m², and external wall insulation £130–£190 per m² — all including labour and materials.
Get the exact figure for your home
Free survey, fixed written quote, manufacturer-backed system warranties.