Vertidraining explained: what it does, when to do it, and what it costs

A vertidrain is a tractor-mounted machine fitted with solid or hollow tines that drive vertically into the soil and then use a slight forward kick to heave and fracture it. Unlike a simple spiker, the heaving action shatters the compacted layer between the surface and the rootzone — the "pan" that builds up under foot traffic and mowing.

The result is a soil profile that drains faster, holds more air, and lets roots travel deeper. On a pitch that has been played hard all winter, that compacted pan is usually the single biggest thing holding the grass back.

Timing is everything. The soil needs moisture in it so the tines can heave and the holes stay open, but it should not be saturated. The shoulder seasons — spring as the pitch comes out of winter, and again in early autumn — are ideal. Many grounds teams vertidrain several times across the playing season whenever a window of good ground conditions appears.

Avoid it when the ground is rock-hard in high summer (the tines barely penetrate and you risk snapping them) and when it is waterlogged (you smear the soil and undo the benefit).

A heavily used community or school pitch benefits from three or four passes a year. A lightly used pitch on free-draining soil might only need one or two. The honest answer is that it depends on traffic, soil type and how the surface is behaving — standing water, a spongy feel underfoot or thinning grass are all signs the soil is tightening up again.

As an indicative guide, a single vertidraining pass on a standard full-size pitch usually falls somewhere in the region of £250–£600, depending on pitch size, access for the tractor, tine configuration and travel. Booking it alongside other end-of-season work often brings the per-job cost down.

These figures are a starting point only — the real price depends on your pitch and location. The quickest way to a firm number is to post a brief and let verified contractors who cover your area quote against it.