Nails rarely go in straight. A tyre is turning when it picks something up, so the object gets driven in at an angle and often tracks sideways between the layers of the casing before it stops. The result is that the hole you can see in the tread and the hole in the inner liner can be a couple of inches apart, joined by a channel that runs diagonally through the tyre. Seal the outer end and you have left the channel open.
This is the whole reason a proper repair uses a combined unit rather than a patch alone. The stem of the repair goes through the channel and fills it, so nothing can travel along it, and the patch seals the inner liner where the channel actually surfaces. Finding both ends means taking the tyre off the rim, which is what happens on a driveway in Alperton at two in the morning exactly as it would in a bay.
Punctures do not keep opening hours. A screw picked up on the North Circular at eleven at night is still a screw at six the next morning, only by then you are late as well. Whether it is Tokyngton in rush hour or Bridge Road at midnight, we answer. On Great Central Way, day or night, Sudbury included, arrival across HA9 runs 30 to 60 minutes.

24-hour tyre repair in Wembley is part of our wider puncture repair across London and the home counties cover. For 24-hour tyre repair in Wembley, call 07717 389637 or ask us for a quote.
The gutters along the A406 and the patched surfaces on the A404 Harrow Road supply most of what ends up in tyres around here, and multi-storey ramps supply the rest. If you find something in the tread, leave it there and leave the car where it is. Every mile driven with a nail working its way sideways makes the channel through the casing longer.
The entry in the tread and the exit on the liner do not line up, because the nail travelled sideways on its way through. Both ends have to be accounted for.
A diagonal tunnel between the layers is a route for air and for water. Filling it is what the stem of the repair unit is for, and it is why plugs pushed in from outside are not the same thing.
Trying to leave the area after something at the stadium with a soft tyre is miserable, and by the time the roads clear the tyre has usually been driven on. Ring from where you are parked instead.
Because the object has usually made a tunnel rather than a straight hole. Sealing only the outer end leaves a path through the casing that air and water will use.
No. The inner end is inside the tyre, and you cannot inspect or seal what you cannot see.
Every night of the year. Late finishes around Wembley are exactly when this service earns its keep.
Identical. Same combined plug and patch to BS AU 159, same balancing afterwards, worked under our own lighting.
None. The figure quoted before we set off holds whatever the hour or the day.
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