UK roads are in a poor state. According to the Asphalt Industry Alliance, local councils in England and Wales face a backlog of road repairs running into billions of pounds. For drivers, that means one thing: potholes. And potholes are one of the leading causes of alloy wheel damage.
If you have ever felt a sharp thud and sudden vibration after hitting a pothole, you will already know how unsettling it can be. But what is actually happening to your wheels? And what are your options when the damage is done?
What Does a Pothole Actually Do to an Alloy Wheel?
When a wheel hits a pothole at speed, the impact is absorbed by the tyre, the wheel, and the suspension. If the force is strong enough, the metal of the alloy wheel can deform. This leads to one of three types of damage.
The first is a buckle. A buckled wheel is one that has been bent out of its original shape. You might notice a constant vibration through the steering wheel, or your car may pull to one side. In some cases, the tyre begins to lose air slowly because the seal between the tyre and the rim is no longer tight.
The second type is a crack. A crack is more serious. It is a split in the metal itself, which can let air escape quickly. A cracked wheel should not be driven on. It is a safety risk.
The third type is cosmetic damage. This is where the surface of the wheel is scratched, scuffed, or dented. You might scrape your wheel against a kerb, or a pothole edge might chip the finish. This does not affect how the car drives, but it does affect how it looks.
Can Alloy Wheel Damage Be Repaired?
Buckled wheels are often straightened using specialist equipment. A technician places the wheel on a machine that applies controlled pressure to push the metal back into shape. This works for most buckles, though some are too severe to fix safely.
Cracked wheels are repaired using welding. The crack is cleaned out and filled using a material that bonds with the metal. A skilled technician can stop the crack from spreading and restore the wheel’s strength.
For superficial cosmetic issues, treatments range from dented alloy wheel repair straightening, custom powder finishing, to precision diamond machining. Powder coating involves applying a dry paint that is baked on under heat, creating a hard and durable finish. Diamond cutting uses a lathe to shave a thin layer from the wheel surface, revealing a clean, polished finish beneath.
A basic cosmetic repair for a single wheel typically starts at around £50 to £80. Diamond cut refurbishment tends to cost a little more, often between £80 and £130 per wheel. Buckle repairs are usually in a similar range, while crack repairs can cost more depending on the severity of the damage.
It is worth getting a quote from a specialist rather than a general garage. Alloy wheel repair is a skilled trade, and the quality of the work varies widely between providers.
Is It Worth Repairing Rather Than Replacing?
A replacement alloy wheel for a mid-range car can easily cost several hundred pounds, and that is before fitting. Repair, by contrast, often costs a fraction of that.
There are exceptions. If a wheel has been severely cracked in multiple places, or if a buckle has caused structural weakness, replacement may be the safer choice. A reputable specialist will be honest about which option is right for your situation.
What Should You Do After Hitting a Pothole?
Pull over when it is safe to do so and check your tyres for visible damage or flat spots. If your tyre looks normal but you notice vibration or noise when driving, get the wheel inspected as soon as possible.
You can also claim for pothole damage through your local council if the road was not maintained to a reasonable standard. The government’s GOV.UK website has guidance on how to make a claim.
For dented alloy wheel repair and other types of wheel damage, seek out a specialist with a strong track record and clear warranty terms. Cheap repairs done poorly can end up costing more in the long run.
