Patios in Kilmarnock, Ayrshire

On clay-heavy ground — which covers much of Kilmarnock — the recommended sub-base depth is typically 100–150mm of compacted MOT Type 1 aggregate. On particularly poor ground or where the patio will take vehicle loading, this can go deeper. The key point is that the depth needs to match the actual ground conditions at the site, not a standard specification applied to every job. John assesses this at the survey visit by checking the soil depth and drainage behaviour. A shallower sub-base might be acceptable on sandy or well-drained ground, but Kilmarnock’s clay requires the full specification to prevent settlement.

Natural stone (sandstone, limestone, slate) has a more traditional appearance and is often preferred for period properties in Kilmarnock. It’s slightly porous and may need sealing in wet climates. Porcelain is non-porous — it won’t stain, is frost-resistant and easier to clean. Porcelain also has more consistent colour and texture, which some people prefer and others find less natural-looking. For Kilmarnock’s wetter, inland climate, porcelain requires less maintenance. Natural stone, particularly good-quality sandstone, looks better over time as it weathers. John’s view: if you prefer the look of natural stone and are willing to seal it every couple of years, go with stone; if you want minimal maintenance, porcelain is the better choice.

Matching existing paving is possible if the original material is still available, but it’s worth being realistic — a new section will look newer than weathered existing paving, and an exact colour match may not be achievable if the product has changed or is out of production. John can source close matches and advise on how much the difference is likely to be visible in practice. For extensions, he’ll also check whether the existing patio was adequately prepared — if the original section is beginning to move, extending it without addressing the sub-base is just delaying a larger problem. He’ll flag this at the survey stage.