What happens
Found it flat in Enfield? Leave it where it is.
Enfield's flats are found in the morning. A resident in Edmonton comes out to a car sagging on one corner; a nurse ending nights near Chase Farm Hospital finds the rim almost on the tarmac. The temptation is to limp it to a garage along Hertford Road or Green Lanes. Every yard covered with the tyre flat chews its sidewall between rim and tarmac, and a puncture that was patchable ends up as a tyre needing replacement.
Leave it on the ground and ring or WhatsApp 07473 720871 with the N9 or EN3 street and a photo. First job on arrival is getting the tyre off the rim to see what went wrong: a nail in the tread crown means a BS AU 159 patch; a sidewall crushed by the rim, or an object in the shoulder, means a replacement in the right size goes on. You are quoted for both possibilities before the van leaves, so neither is a shock.
On run-flat tyres? They behave differently once deflated, so check the handbook's limits and read our page on run-flat tyres; we fit replacement run-flat tyres at the car in Enfield as well.
Need something else? Our pages on broken tyre replacement and wheel balancing in Enfield explain those jobs.