The short answer
A tingle is a slim copper or lead strap, fixed to a batten and folded up over the tail of a slate to hold it in place. It lets a roofer replace a slipped or broken slate without lifting the courses around it. Tingles suit a few isolated repairs. When many slates need them, the nails are usually failing across the roof and re-slating is the lasting answer.
How a tingle holds a slate, why it is a good repair for isolated damage, and the point at which it stops being enough.
How a tingle works
A slate is normally held by two nails near its top, hidden under the course above. If one slips or breaks, you cannot simply nail a new one in, because the slates above and below block access to the batten. A tingle gets round that. A narrow metal strip is nailed to the batten through the gap left by the missing slate, and its free end is bent up and over so it cradles the tail of the replacement.
The new slate is slid up into position beneath the course above, and the folded end of the tingle sits across its lower edge, holding it down. Done neatly, the strap is almost invisible from the ground, showing only as a thin line at the slate tail. Because neighbouring slates are left alone, a tingle repair is quick and low risk compared with lifting a whole area.
Some roofers call these straps clips, but the principle is the same. Our answer on replacing individual roof tiles covers the same idea for tiled roofs.
Copper or lead: which is used
Tingles are cut from copper or lead. Both fold by hand and hold a slate firmly, and neither rusts the way a steel strap would. Copper is stiffer and springier, so it keeps a crisp fold. Lead is softer and easier to dress around an awkward slate, though a thin strip can stretch under load.
Which a roofer picks often comes down to what is already on the roof and what suits the slate. Copper beside lead flashings is a common pairing. If you are unsure, ask which metal and what thickness are proposed. Lead flashing and detailing is part of our lead work service, and MyJobQuote puts the life of lead flashing beyond 80 years, though that is only a typical range.
The strap is only as good as its fixing. It must be nailed into sound batten with a nail that will not corrode, so the repair does not fail at the same weak point. A roofer should be willing to show you the batten and the nail before the course is closed up. If the batten crumbles under the nail, the better repair is a new batten, not a tighter strap, and the written price should say so.
When tingles are the right fix
Tingles are a sound answer when the damage is isolated: a slate cracked by a falling branch, one or two slipped after a gale, or a slate broken by foot traffic around a loft hatch or aerial. The slates around the damage are fixed firmly, the battens are in good order and the roof elsewhere is healthy. In those cases a tingle repair is the economical choice and the roof carries on.
It is also the right approach for old slate you want to keep. Reusing existing slates preserves the look and avoids waste, and the CoRC guide gives 100+ years for slate that is looked after, so a few tingles in the right places are simply part of caring for a roof of that age.
Checkatrade's June 2026 repair table gives £150 to £220 per square metre for Spanish natural slate repairs, before VAT, for small patches. Think of it as a rough guide; the price for your roof is set in writing after a survey. Look for VAT and the scaffold needed to reach the area when you read any quote, since either can change the total.
When too many tingles mean re-slating
One tingle is a repair; fifty is a symptom. If a roofer finds slates slipping across a slope, they will usually find the original nails rusting through. A tingle holds the tail of one slate, but it does nothing for the neighbours whose nails are about to fail. You end up paying for repair after repair while the roof declines. Our answer on nail sickness on a slate roof explains that pattern.
At that stage, stripping the slope, checking battens and underlay, and fixing the sound slates again on new nails is the better buy. Broken slates are replaced, and the finished roof is fixed to BS 5534. Pitch matters too: BS 5534 indicates a minimum of 20 degrees for natural slate.
There is no magic number of tingles, so look at the pattern. Isolated repairs spread over several years are fine. New ones every season in the same area are the signal to ask for the re-slating option priced beside the repair. We photograph the nails we find so you can judge for yourself, then give a single written total for either route. Our pitched roofing page covers both.
More on this in Pitched Roofing Services in Crawley
Two more tingle questions
Will a tingle repair show from the ground?
Rarely. A thin line of metal shows at the slate's tail, and from the garden it usually reads as a slightly darker edge. Copper dulls to brown over time and lead greys, so both blend in. Large gaps or an uneven course line are more likely to give a repair away than the tingle itself.
Can a tingle be fitted to any slate?
Nearly any, provided the batten beneath is sound and there is room to slide the slate into place. Thin, fragile or laminated old slate may split, and very steep or very shallow roofs can need a different fixing. A roofer checks the slate and the pitch before choosing the method.