The quick verdict

Silestone is Cosentino’s quartz surface, ideal for indoor kitchens with a huge range of colours and a slightly lower price. Dekton is Cosentino’s sintered ultracompact surface, the better choice for heat, outdoor use and maximum durability. Both are non-porous and need no sealing.

What each one is

Silestone is a quartz surface, made largely from natural quartz bound with resin and pigments. Cosentino’s newer Silestone uses what it calls HybriQ technology, which incorporates recycled materials and reduces the crystalline silica content compared with older formulations. It is designed for indoor worktops and comes in an extensive palette.

Dekton is a sintered stone made from a mineral blend with no resin, fused under heat and pressure. The absence of resin is the headline difference and is why Dekton handles heat and sunlight better. For background, see is Dekton porcelain, quartz or sintered stone and Dekton silica content and safety.

Dekton vs Silestone, side by side

Heat and outdoor use

As with the wider Dekton vs quartz question, the resin in Silestone is the limiting factor for heat. You should always use a trivet on Silestone, as direct, sustained heat can mark the resin. Dekton can take hot pans and is happy outdoors thanks to its ultraviolet stability, whereas Silestone is for indoor use. If an outdoor kitchen is on your wish list, Dekton is the one.

Colour, finish and feel

Silestone offers one of the broadest colour ranges on the market, including popular soft whites and warm neutrals, and many people love its look and feel for an indoor kitchen. Dekton’s palette is also wide and includes convincing marble, concrete and metal effects, often with through-body colour. Both come in different finishes; see Dekton finishes explained.

Price and value

Silestone typically costs a little less than Dekton when supplied and fitted, making it attractive for indoor projects on a tighter budget. Dekton’s premium buys superior heat and ultraviolet performance and outdoor capability. Both are durable, low-maintenance and built to last, and both qualify for 0% finance with us. See the numbers in our cost guide.

Designing with each

Silestone’s strength is choice: an extensive palette including soft whites, warm neutrals and subtle veining that many designers reach for in classic and contemporary indoor kitchens. Dekton answers with bold marble, concrete and metallic effects, often with through-body colour that keeps mitred edges crisp. If your scheme depends on a very specific shade, the deciding factor may simply be which range contains it. Seeing full slabs side by side, as you can in our showroom, makes the choice much easier.

Which suits an island or breakfast bar?

For a large island with a chunky mitred edge or a waterfall down the sides, Dekton’s through-body colour and large format are particularly flattering, since there is no obvious colour change at the edges. Silestone islands look superb too, especially where the worktop is a standard thickness. Both materials come in generous slab sizes, so long runs are achievable with either.

Longevity, warranty and care

Care is straightforward for both: warm soapy water or a mild cleaner, no sealing, ever. Dekton’s outdoor capability and heat tolerance give it an advantage for hard-working or alfresco kitchens, while Silestone’s indoor performance is excellent and well proven. Both are durable, long-term surfaces backed by Cosentino, so you are buying quality whichever route you take. Our guide on cleaning and caring for Dekton applies to everyday use.