Two nails in one tyre does not automatically mean two repairs. BS AU 159, the standard a legal puncture repair is done to, keeps repairs inside the central three quarters of the tread and puts a ceiling on hole size, six millimetres across on a car tyre. What catches people out is the spacing. Two injuries close together weaken the casing between them in a way that neither does on its own, and the working rule in the trade is that they need to be a good sixteen inches apart around the tyre before both can be done.
So whether a tyre with two holes in it survives genuinely depends on where they sit. Two nails at opposite ends of the circumference, both well inside the tread, are two ordinary repairs and the tyre carries on. Two within a hand's width of each other are a new tyre, and there is no trick that gets round it. That judgement is made with the tyre off the wheel and the inside lit up in front of us, at whatever hour you rang, because the alternative is you making it in the dark with a phone torch.
Round-the-clock only means something if the van carries enough to finish. Ours carries the fitting gear, the balancer, valves, lighting and stock in the common sizes, at every hour right across Hertfordshire. From City Centre to London Colney, any night of the year. The M25, the M1 and the streets around City Centre sit inside Hertfordshire. Your receipt reaches St Stephens, London Colney and the M1 by text before we go. Valve in Fleetville, balance in Jersey Farm, pressures before we go.
24-hour tyre repair in St Albans is part of our wider mobile puncture repair cover. For 24-hour tyre repair in St Albans, call 07717 389637 or ask us for a quote.
Cars in this part of Hertfordshire collect their hardware from two very different places. There is the fast stuff off the M25 at junction 21A and the M1, where anything dropped on the carriageway gets flung about for hours, and there is slow kerbside driving in the older streets, where a lost screw finds a tyre eventually. Two nails in one casing is more common here than you would think.
Both were dead centre in the tread and either one alone would have been simple. Together they were too close to leave anything sound between them, so the tyre was replaced and the reason explained.
Called out for one puncture and found another on the opposite side of the tyre once it was off the wheel. Well separated, both inside the repair area, so both were sealed and the wheel went back balanced.
A tyre losing air steadily and a long drive to make at six. Getting it off the rim then rather than at nine meant it had never been run flat, and it was still sound enough to save.
There is no single magic number. Each one has to sit in the repair area, be within the size limit and be far enough from the others. A tyre carrying two or three well spaced repairs and plenty of tread is a perfectly legal tyre.
Because an external plug goes in blind. Nobody sees what the nail did on the way through, and with two holes that is exactly what you need to see. Taking the tyre off is the only way to know the casing between them is intact.
The figure is agreed before we set off and the hour is not what it hangs on. What the hour does change is the state of the tyre. Dealing with it at two, before it gets driven on, is often what keeps a repair possible at all.
Long enough to look at it properly, which is minutes rather than an ordeal. Off the rim, inside checked, hole reamed square, plug and patch fitted from within, back on, seated and rebalanced. The car keeps its own wheels throughout.
Then you get told plainly and given a choice. One repairable hole and one sitting in the shoulder means the tyre is going, and we would rather fit a replacement from stock on the same visit than patch something that will not hold.
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