The short answer
A slipped tile is fixed by lifting the courses around it, checking the batten and underlay beneath, and either refixing the tile with a new nail or clip or replacing it with a matching one. It is normally a short, single-visit job. If many tiles are slipping, the nails or battens have failed and the repair becomes larger.
Why a tile slips in the first place
Tiles are hung, not stuck. Each one rests on a batten, the narrow timber lath running across the rafters, and is held by a nib at its top edge and, on most roofs, by a nail or clip as well. A tile slips when one of those holds gives way. The commonest reasons are a corroded nail, a batten that has gone soft with damp, a tile that has cracked across its nib, or a gust that lifts and moves a loosely fixed course.
Frost plays a part too. Water held in a hairline crack freezes, widens the crack, and eventually lets a piece drop. On older roofs the original nails may be iron, which rust through in time. When that happens across a whole slope, tiles slide one after another, and a repair of a single tile will not hold for long.
Birds, a branch brushing the surface, or a ladder leaned against the eaves can also dislodge a tile. Whatever the cause, the useful question for a roofer is whether the slip is a one-off or a symptom, and the answer decides how big the job is.
What the repair involves, step by step
The work starts from a ladder or scaffold, not from a scramble across the roof. The roofer lifts the tiles above the gap just enough to free the slipped one and to see what lies beneath. This is the stage that separates a proper repair from a quick push.
- Inspect the batten. If the timber is sound and the old nail hole is usable, the tile can be refixed. If the batten is damp, split or rotten, it is cut out or doubled up with a new length.
- Look at the underlay. This membrane under the battens deals with any water that slips beneath the covering. A tear or a perished patch is repaired or replaced before any tile goes back.
- Fix the tile. A fresh nail of a rust-proof metal, or a clip where the tile profile calls for one, holds it in line with its neighbours.
- Replace if needed. A cracked or crumbling tile is swapped for one of the same type and, as far as supply allows, the same age and colour.
- Bed back the course. The lifted tiles go back down and the course is checked by eye for even gaps.
On slate the idea is the same, but a slipped slate is usually held with a small strap, called a tingle, because the original nail has rusted away and cannot be reused. Nobody wants a roof dotted with them, so a run of tingles is worth a conversation about the nails.
Matching the tile you already have
A visible repair stands out for years, so matching matters. Clay plain tiles, concrete interlocking tiles, pantiles and natural stone all weather differently, and a bright new tile beside faded ones looks like a patch. Where the house is old, we look for reclaimed tiles that suit, because they have already weathered.
Listed status or a conservation area changes the stakes, because the material is part of what is protected. If you are unsure whether a change needs consent, ask B&NES planning. Repairing in the same material is the safe route and our usual one, covered further in like-for-like roof repairs.
If you have one or two spare tiles in the garage from when the roof was laid, keep them and mention them. They are the best possible match.
What it costs in time and money
A single slipped tile is among the smaller jobs a roofer does. Once access is arranged, the repair itself is quick, and it is often done in a single visit. What lengthens it is access. A ground-floor roof reached with a ladder is easy. A tall terrace can call for a scaffold tower or a cherry picker, and hiring one can outweigh the repair itself.
In MyBuilder's 2026 guide, a handful of tiles falls under minor work at roughly £100 to £300 nationwide. That is an average from an outside source and says nothing about our own charges, which are fixed in writing only after the roof has been surveyed and the access is known.
It is cheaper to repair one tile now than to wait for a leak. Water that gets under a slipped tile soaks the batten and underlay first, then the rafters and ceiling. See whether home insurance covers a leaking roof for how insurers view damage that could have been prevented.
When a slipped tile is the visible part of a bigger problem
Sometimes the slipped tile is the first tile of many. If several have moved in the same slope, if the nail heads are rusty when the roofer lifts a course, or if the battens crumble, the sensible repair is wider than one tile. That might mean re-fixing a whole section with new nails, or stripping and re-covering a slope.
We settle which of these applies at the survey. You see the photographs of what lies under the tiles, so the call between a small fix and a wider one rests on pictures. Our list of signs a roof needs repair helps you judge whether other warning signs are present.
If water is coming in now, finding the source of a roof leak is the first step.
Staying safe while you wait
Do not climb up to push the tile back. A wet tile is slippery, and a loose one can slide with you. From the ground, note which slope and which course the gap is on, photograph it with a zoom lens, and check the loft for damp underneath. A bucket under a drip and a towel on the floor will do until the repair.
If the tile is hanging and could fall onto a path, keep people clear of the area. For wider cover, our roof repairs in Bath page sets out how the repair service works, and you can reach us by phone on 01225 285181, on WhatsApp or through the enquiry form.
