Practical · 7 min read
What is spray cork?
A plain-English explanation of what spray cork is, what it's made from, how the material is produced, where it can be used and how installers apply it.
The independent guide to spray cork in the UK
Everything you need to know about spray cork
Independent advice on spray cork costs, benefits, problems, alternatives and finding installers across the UK.
(a) What is it
A natural, sprayed finish
Spray cork is a granular cork-based coating applied to exterior walls. It is marketed as an alternative to traditional render, offering a flexible, breathable finish with a distinctive matte texture and a modest thermal benefit.
It is not a universal answer. Preparation matters, results vary by installer, and it is heavier on the wallet than standard options. This guide lays out the honest trade-offs before you spend.
Read the full explainer(b) Cost snapshot
Indicative UK ranges
- Per square metre
- £38–65
- Semi-detached
- £4k–8k
- Detached
- £7k–14k
- Terraced
- £3k–6k
This is an indicative estimate only. Actual costs will vary depending on the property, preparation required, location and installer.
(c) The honest trade-offs
Advantages
- Vapour-open — solid and older walls dry naturally
- Flexible and crack resistant, so it copes with movement
- Warmer, quieter walls — up to 15% lower energy use
- No colour fade, so no repainting just to fix weathering
Disadvantages
- Noticeably pricier than standard render
- Quality depends heavily on installer skill
- Requires careful substrate preparation
- Very difficult to remove once applied
(d) Compare
Spray cork vs render
| Criterion | Spray cork | Traditional render |
|---|---|---|
| Cost | Higher — typically £38–£65 per m² including preparation | Lower — commonly £25–£50 per m² depending on system |
| Durability | Flexible coating that bridges fine hairline cracks | Rigid; cement-based systems can crack with movement |
| Appearance | Granular, matte, warm texture in a limited palette | Smooth, scraped or pebbled in a very wide colour range |
| Maintenance | Low — occasional gentle wash, no repainting expected | Medium — painted systems need periodic repainting |
(e) Latest guides
Research before you decide
Costs · 8 min read
Spray cork cost in the UK
What spray cork actually costs in the UK by property type, wall area and surface condition, plus the factors that push a quote up or down.
Design · 5 min read
Spray cork colours and finishes
How spray cork colour ranges work, how the texture changes the way colour reads on a wall, and how to choose a shade that ages well.
(f) Frequently asked questions
How long does spray cork last?+
With correct preparation and an experienced installer, a well-applied finish is typically quoted at 20 to 30 years before significant refurbishment is needed.
Is spray cork a good alternative to render?+
For some walls, yes. It offers a natural textured look, flexibility over hairline cracks and breathability, but it costs more and demands a higher standard of substrate preparation.
Will spray cork cut my heating bills?+
It may make a modest difference, particularly on cold solid walls, but it is not equivalent to certified external wall insulation. Treat precise savings claims with caution.
Where do I find a reliable installer?+
Reputable spray cork installers work UK-wide. Use our Get Quotes form to tell us your area and project, and we will match it to installers who cover your postcode. Always ask to view completed work and check what any guarantee actually covers.
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