Puncture repair once you are safely off the motorway: we come to the car and repair the tyre if the damage allows it.
If a tyre fails on a motorway, leave at the next exit or pull into a service area if the car can still be driven safely. If you have to stop, use the hard shoulder, get everyone out by the left-hand doors, wait behind the barrier and do not try a repair yourself. If you are stuck in a live lane, stay in the car with your seat belt on and call 999. We never work on the carriageway of a motorway or main road, on a hard shoulder, in a smart motorway emergency area or on a slip road.
National Highways runs this road. Its contact centre is on 0300 123 5000; in an emergency, call 999.
The road's junction list and the full Highway Code steps are on its main page, under Related pages below.
A puncture can be repaired only when the damage is in the central part of the tread and no wider than 6 mm. The fitter takes the tyre off the wheel and checks the inside, because a tyre that has been driven while flat can be damaged on the inner wall even when the outside looks fine.
If the damage is on the sidewall or shoulder, the hole is too big, or the inside is damaged, the tyre is not safe to repair and we say so before fitting a replacement.
When the car is parked somewhere safe and legal, such as a side street near the exit or a car park where the owner allows it, we can come to it. Tell us which junction you left at and where the car is now.
| Road | M11 London to Stansted |
|---|---|
| Operator | National Highways |
| Service areas | Birchanger Green services |
At its nearest measured point, the M11 is about 12 miles in a straight line from our only base at Brent Cross, NW2. We give you an arrival time when you call.
The accepted way to repair a puncture is a combined patch and plug fitted from inside the tyre, rather than a string plug pushed in from outside. That means taking the tyre off the rim, which also lets the inner liner be checked for damage from running low.
A tyre that needs air every week or two has a slow leak. The cause can be a small object in the tread, a leaking valve or valve core, or a poor seal where the tyre meets a corroded rim.
A slow leak still needs finding and fixing, because a tyre run underinflated wears faster, runs hotter and can fail at speed.
The sealant kit supplied with many new cars is a temporary measure to get you moving. The kit sets its own low speed and distance limits, printed on the bottle or in the handbook.
If you have used sealant, say so on the call. The inside of the tyre has to be cleaned before it can be inspected, and some sealants leave it unfit for a repair.
Nobody can promise a repair over the phone. The decision is made with the tyre off the rim, against the limits in the standard and the tyre maker's own guidance.
If the damage rules out a repair, you are told why before anything else is done. Common sizes are often on the van; other sizes are sourced for the job.
Call or WhatsApp with where the car is, the registration and the tyre size from the sidewall. A photo of the tread where the damage is helps judge whether a repair is possible.
You hear what the job involves and the options for your car. Nothing is booked until you say yes.
The fitter comes to your home, your workplace or a safe place to park, raises the car on a jack and does the job beside it.
Before the fitter leaves, the wheel is checked for security and the tyre pressure is set to the maker's figure.
“Excellent service from start to finish. He came out quickly to help my mum change her tyre and was extremely friendly.”
“Quick, helpful and very understanding of our situation.”
There is no fixed figure that suits every car, so the price is built from a few things and told to you before you decide.
The price is given on the call. The price is the same at any hour. Asking for a price does not commit you to anything.
When you compare prices, compare like with like: the same brand and pattern, the same load index and speed rating, and whether balancing and a new valve are part of the job.
Cars and light vans need at least 1.6 mm of tread across the central three-quarters of the tyre, around the whole circumference.
For a car, each illegal tyre can bring a fine of up to £2,500 and three penalty points; the maximum fine for a van is higher.
Push a 20p coin into the main grooves at several points around the tyre. If the outer band of the coin is visible, the tread may be close to the limit and should be measured properly.
A tyre is also illegal with a cut longer than 25 mm or a tenth of its section width, whichever is greater, that reaches the ply or cord, a lump or bulge, exposed cords, or the wrong size or type for the car.
The last four digits of the DOT code on the sidewall give the week and year of manufacture, so 2319 means the 23rd week of 2019.
Rubber hardens and cracks with age even on a tyre that has done few miles, and many tyre makers advise replacing any tyre ten years old or more.
Tyre repair vs replacement: which do you need?
Should you repair a damaged tyre or replace it? Here's how to decide, based on UK safety standards, the repair zone rules, and the real cost difference.
Nail or screw in your tyre? What to do, and when it can be repaired
Found a nail or screw in your tyre? Don't pull it out, it may be sealing the hole. Here's the safe way to handle it and whether it can be repaired.
Send the tyre size if you can read it.
