It is the most common material question we hear on terraces in Hertfordshire and Essex, and the honest answer is that both are excellent — when they are the right one for the house, the garden and the household. Here is how we advise.
Porcelain paving is engineered: kiln-fired at extreme temperature, so a tile is dense, consistent and near-zero absorbency. In practice that means it stains less, keeps its colour without sealing, resists frost, and — with a good textured finish — is reliably grippy when wet. Its look is crisp and contemporary: clean edges, tight joints, and a range of finishes from stone-look to concrete-look to plain colour. It suits the new houses of Harlow's Church Langley and Newhall, the regenerated plots around Bishop's Stortford North, and any garden whose architecture leans modern.
Its character is also its honesty: porcelain does not pretend to be anything. Each tile is the same. Some people love that consistency; others find it flat. It is a design opinion, not a defect.
Natural stone — sandstone, limestone, granite, Yorkstone — is the opposite. Split or honed from the ground, every flag carries its own tonal drift, fossil marks and texture. Riven Indian sandstone gives warmth and a hand-made feel at a fair price; limestone is calmer and more contemporary as a stone; Yorkstone, new or reclaimed, is the period material for Ware and Saffron Walden frontages and anywhere brick and history set the tone. Granite, in sett or flag form, is close to indestructible and suits edging, steps and drives.
Stone's trade-offs are the mirror of porcelain's: it absorbs more, so it wants sealing where oil and rust are likely — near barbecues, under steel furniture — and its variation, the very thing people buy it for, means slabs must be sorted and blended on site by a team that knows what it is looking at.
Cost sits closer than most people expect. Imported porcelain and premium sandstone overlap heavily in price; what moves the number is the thickness, the size of the format, and — more than either — the ground preparation underneath. A cheap paving on a proper base outlasts an expensive paving on a poor one, every time.
Which raises the part nobody sees. Whatever the surface, a Conway terrace is built the same way: excavated to depth, Type 1 sub-base compacted in layers, designed drainage and falls, full mortar bed. On Hertfordshire clay that discipline is the difference between a terrace for thirty years and one that starts to move in three — whichever material you choose. Our construction method covers it in detail.
A few practical notes from site. Porcelain wants primed slurry on the back of every tile or it will not bond. Large-format tiles — 900mm and up — look superb and demand a far flatter base; the base costs more than the tile. Stone wants a gentle wash and a re-seal every few years; porcelain wants a mop. Under outdoor kitchens and dining tables, both stay cleaner in mid-grey tones than in black or bone.
The way we settle it with clients is simple: we bring samples to the garden, lay them on the terrace area, and leave them for a week. Wet them. Look at them at eight in the evening in June, and at four in the afternoon in February. The right material tends to announce itself — and it is usually the one you stop noticing, because it belongs to the house.
If you are weighing a new terrace, our patio cost guide sets out honest ranges, and a first visit costs nothing. Bring the mug; the samples are on us.