Around this time every year, our phone starts ringing. Homeowners who've spent the summer thinking about their garden, who've finally decided to commit, and who would very much like the work done before Christmas. We understand the impulse. We turn most of them down.

This isn't precious. There are good practical reasons we won't lay hard landscaping after the first proper frost, and serious ones for not attempting it in late autumn either. They're the kind of reasons most contractors won't discuss with you — because it costs them work — but we'd rather lose a project than lay a patio that fails by the third winter.

The problem with cold ground

Most of what holds a patio together is invisible. The mortar, the binding sand, the sub-base. All of it depends on the temperature of the ground beneath it during the first twenty-eight days after laying.

Lime mortar — which we use almost exclusively, because it's correct for older properties and ages better than cement — won't cure properly below 5°C.

Below that temperature, the lime sits in suspension rather than bonding to the stone. By the time spring arrives and the temperatures rise, the bond has already started failing. You don't see it for a year, sometimes two, but it's already there in the joints, waiting.

By late October in Derbyshire, our overnight ground temperatures regularly dip below 5°C. By mid-November, daytime temperatures struggle to keep the ground warm enough during curing hours. The cement-based alternatives are no kinder — they're just better at hiding the damage for a few extra months.

Drainage and ground movement

The other invisible enemy is water. Hard landscaping needs a properly compacted sub-base — typically 150mm of MOT Type 1 — to spread loads evenly and shed water. Compaction depends on the moisture content of the material. Too dry and it won't bind; too wet and the water itself will be displaced as you compact, leaving voids that show up as settlement six months later.

In autumn, MOT arrives wet from the quarry. It's harder to compact properly, and what compaction you achieve is partly an illusion: as the material dries through winter, it settles unevenly. Settle a sub-base in October, and by April you're looking at hairline cracks in the jointing.

The honest exception

There are jobs we'll happily take on in October and November. Pure planting work continues until the ground is genuinely frozen — in fact most of our soft landscaping is autumn-installed, because dormant root systems establish far better through winter than spring planting does. Lifted-and-relaid stonework, where the lift happens before the cold sets in, is fine. Dry-stone walling doesn't depend on mortar curing at all.

What we won't do is start fresh hard landscaping where the curing window will fall in winter. We've seen too many other contractors' patios that did, and we know what we'd find if we lifted them.

The conversation we have instead

When someone calls in October, we usually offer one of three things:

  1. Site survey now, design over winter, build in March or April. This is what most clients accept once we explain it. The winter design phase is genuinely useful — there's time to think, to refine, to source unusual materials.
  2. Plant in late autumn, build in spring. The planting establishes through dormancy; the hard landscaping happens when conditions allow it. By midsummer you have a complete garden that's already a year ahead of itself.
  3. Take the deposit, don't start until conditions are right. We don't typically suggest this — most clients don't want to pay six months ahead — but for the right project it makes sense.

What we won't do is take the deposit, start work in November, and produce a patio that fails when you've forgotten how it was built.

The longer view

Twenty-seven years of work has taught us that the cost of doing something wrong is much higher than the cost of waiting. A patio laid in March 2025 will be doing its job in March 2055. A patio laid in November 2024 to keep a client happy might not last until 2030. The first one is a garden investment. The second one is a contractor's mistake that the homeowner pays for twice — once now, once again in five years.

We'd rather have the harder conversation in October. Most of our clients, given the explanation, choose to wait. The ones who don't, we send our best wishes — and the names of two firms in the area who'll happily lay a patio in any weather.