Patios & paved garden areas in Macclesfield

A patio is a driveway that does not have to carry a car, and that changes the depths and not much else. It still wants excavating to formation, a compacted crushed-stone base, a proper bedding layer, restrained edges and falls that take water away from the house. Most failed patios failed for exactly the reasons failed driveways do — they were built on nothing much, and the water was never thought about.

Bedding is where the biggest difference in quality sits, and it is invisible once the slabs are down. Paving should go on a full mortar bed, with a cement slurry primer brushed onto the back of each unit so the mortar bonds to it. The alternative, which is extremely common, is dab bedding — five blobs of mortar per slab — which leaves most of the underside hollow. Those slabs rock, crack, let water into the voids and lift in frost, and every one of those problems traces back to the same shortcut.

Falls and threshold levels are the other half, and they matter more on a patio than on a drive because a patio is usually against the house. Paving should fall away from the building at roughly 1:80 — enough to shed water, not enough to feel like a slope — and the finished surface should sit at least 150mm below the damp proof course. Where a door threshold makes that impossible, the correct answer is a linear channel or a slot drain across the doorway, not building up to the door and hoping.

Jointing decides how the patio ages. Joints want to be wide enough and deep enough to fill properly, and filled with a proper mortar or a resin jointing compound rather than dry sand and cement brushed in and watered — which never gains strength and cracks out within a couple of winters. Once joints have failed, water gets into the bed, frost lifts the slabs, and a jointing job has become a relaying job.

Material choice is the enjoyable part and it follows the same logic as a drive. Porcelain is dense, non-porous, frost-resistant and stain-resistant, and needs a slurry primer without exception. Sandstone is warm, textured, porous and benefits from sealing. Yorkstone is the local material and looks right on older property. Concrete paving has come a long way and is good value. All of them work on a proper base and all of them fail on a poor one.

One thing worth planning for at the design stage rather than regretting: where the patio drains to. A large paved area against a house sheds a lot of water, and running it into a border that then washes onto the paving, or into a gully that is already at capacity, causes problems within a season. A permeable build-up, a soakaway or a properly sized channel gets designed in — and, unlike a front garden, a rear patio is not caught by the front-garden planning rule, so the choice is a practical one rather than a regulatory one.