Quartz vs porcelain worktops: which is right for your kitchen?
Porcelain wins on heat, sunlight and outdoor use, because it contains no resin to scorch or fade. Quartz wins on colour choice, price and availability. Many kitchens are best served by both, porcelain where the heat is and quartz everywhere else.
| Quartz | Porcelain and sintered stone | |
|---|---|---|
| Made from | Crushed quartz plus resin binder | Fired minerals, no resin |
| Heat | To about 150°C, trivet needed | Excellent, pans direct |
| UV and sunlight | Some colours fade | UV stable |
| Outdoors | No | Yes, frost resistant too |
| Colour range | Very wide | Narrower |
| Main weakness | Scorching | Edge chipping, it is brittle |
| Thin slabs | No | Yes, from 6mm |
| Cost | Lower | Higher |
| Crystalline silica | High, roughly 90% | Roughly 15 to 25%, not silica free |
The claim to be careful about
Porcelain is sometimes sold as the safe alternative to quartz because of the silicosis coverage. That is overstated. Published data for porcelain slabs puts crystalline silica at roughly 15 to 25 per cent, which is lower than standard quartz but higher than several genuine low silica engineered stones now on the market.
There is a real point underneath it: the risk is occupational, it belongs to the workshop cutting the material, and it does not follow the slab into your kitchen. Choose porcelain for heat and UV stability, which are true and useful. Do not choose it on a silica claim.
Where porcelain earns its price
Outdoor kitchens, where it is really the only correct answer, because quartz fades outside within a few years. Garden rooms and extensions with a lot of south facing glass. Hob runs in kitchens where somebody cooks properly. And island ends or full height splashbacks, where a 6mm or 12mm slab lets you clad a surface without adding visual bulk.
Where quartz is still the better buy
Most indoor kitchens, honestly. The colour range is far wider, particularly in the marble looks most people want. It costs less. Supply is broader, so if you fall for a colour it is more likely to be available. And its one real weakness, heat, is managed by a trivet.
How we price the two
Quartz goes through our estimator and gives you a range in about a minute. Porcelain is made to order and priced against your plans, because it is cut on a waterjet rather than a saw, the supply is narrower and the thin edges are mitred by hand so the slab reads as solid stone. Send us drawings or photographs and we will come back with a proper figure.