Short answer: cosmetic kerb damage refurbishes well and is usually the cheaper route. A buckle can often be straightened. A crack is where you stop — a welded wheel is never as strong as it was, and on the front of a fast car that is a risk most people would not take if they understood it properly.
Here is how to work out which camp your wheel is in.
The four kinds of damage
| Damage | What it looks like | Verdict |
|---|---|---|
| Kerb scuff | Scraped paint and a flattened lip edge, no distortion | Refurbish. Straightforward |
| Corrosion | Lacquer lifting, white powdery patches, usually behind the spokes | Refurbish, but it will come back unless it is done properly |
| Buckle | Steering wheel shake at speed, tyre losing pressure slowly | Straightenable if the buckle is on the inner lip and mild |
| Crack | Persistent slow puncture, visible line, often in the barrel | Replace it |
What each route costs
Rough UK and Ireland figures as a sense check, not a quote:
- Single wheel cosmetic refurb — around £60 to £100 for a standard finish, more for diamond cut
- Full set refurb — typically £200 to £350
- Buckle straightening — around £50 to £80 per wheel, often on top of the refurb
- Crack welding — around £60 to £100, and see below before you do it
- A single replacement wheel from us — from about £130 for most OEM style sizes
That last line is the one people do not expect. Once a wheel needs straightening and a refurb, you are at £120 to £180 on a wheel that has already taken a hit, and a new one costs about the same.
Why a crack is different
Aluminium alloy wheels are cast or flow formed. The grain structure of the metal is part of what gives the wheel its strength. Welding melts and re-solidifies a patch of it, and the area immediately around the weld is heat affected too. You end up with a repaired wheel that is harder in some places, softer in others, and carries internal stresses it did not have before.
It will often hold air and look perfect. The question is what it does when you hit a pothole at speed with it, or load it up in a corner. A wheel that has been welded has no load rating any more, because the rating belonged to the wheel as it was manufactured.
Our position, and we sell wheels so take it with that in mind: a welded wheel is acceptable on a trailer or a spare. On the front of a car doing motorway speeds with a family in it, buy a new wheel. The saving is not worth the question.
How to tell a buckle from a crack
Both can show up as a slow puncture, so people confuse them.
Buckle: you feel it through the steering, usually at a specific speed range, often around 50 to 70mph. Balancing does not cure it. A tyre shop can spin the wheel and see the run-out immediately.
Crack: air loss that balancing and new valves do not fix. Often invisible from the face because it sits in the inner barrel. The tyre has to come off to see it, and soapy water finds it quickly.
If a tyre shop tells you a wheel is cracked, get them to show you. It is a two-minute job with the tyre already off, and you should see it before you spend money either way.
When refurbishment is the obvious answer
- All four wheels are scuffed and you want them matching
- The wheels are genuine manufacturer items worth keeping
- You want a colour change, black over silver say
- The design is discontinued and you cannot replace one
- The damage is purely cosmetic with no distortion
When replacing one wheel is the obvious answer
- It is cracked
- It is badly buckled, or buckled on the outer lip
- Only one wheel is damaged and the others are fine
- The refurb quote plus straightening is close to the price of a new wheel
- It is an OEM style wheel rather than a genuine one, so an identical replacement is easy
That last point matters more than people realise. If you are running replica wheels, a matching single is straightforward to source and the colour match is exact because it is the same product. We keep single replacement wheels for precisely this, and we sell every wheel individually rather than forcing you into a set of four.
Popular single replacements in stock
- 18x8" VRS Style, Gunmetal — from £140
- 18x8" Concept TTRS Twist Style, Gunmetal — from £140
- 17x7.5" VW Clubsport Style, Black Machined — from £132.50
- 20x9" TTRS Rotor Style, Satin Gunmetal — from £160
- 22x9.5" Autobiography Turbine Style, Black Machined — from £215
Diamond cut wheels are a special case
A diamond cut finish is machined on a lathe, then lacquered. When the lacquer fails, water gets under it and the bare machined aluminium corrodes, which is why they go milky white around the spokes.
Refurbishing them means skimming the face on a lathe again, which removes metal. There is a limit to how many times that can be done, usually two or three, before the wheel is too thin. Any shop that says they can diamond cut a wheel indefinitely is not being straight with you.
If yours have been cut twice already, replacing is the better call.
Five questions to ask the refurb shop
- Will you strip it chemically or by blasting? Blasting is faster, chemical stripping is kinder to the metal
- Is it powder coated or wet painted? Powder coating is far more durable
- Has this wheel been diamond cut before, and how many times?
- Will you check it for run-out and cracks before you start? A good shop does this as standard
- What is the warranty on the finish? Twelve months is normal, less than that tells you something
Common questions
Can a cracked alloy wheel be repaired?
It can be welded, and it will usually hold air and look fine. But welding changes the metal's structure and the wheel no longer carries its original load rating. For a road car at speed, replacement is the safer choice. A welded wheel is more defensible on a spare or a trailer.
Is it cheaper to refurbish or replace an alloy wheel?
Refurbishing a single wheel typically runs £60 to £100, versus about £130 and up for a new OEM style replacement. But once straightening is added, the two routes cost roughly the same, and a new wheel has no history.
Do I have to buy a set of four if I only damaged one?
No. We sell every wheel individually. If you are running OEM style wheels, a matching single is easy to source and the finish will match exactly because it is the same product.
How many times can a diamond cut wheel be refurbished?
Usually two or three. Each refurb skims metal off the face on a lathe, and there is a finite amount available before the wheel becomes too thin to be safe.
Will a buckled wheel pass an MOT?
A distorted wheel is an MOT failure. A mild buckle that holds air may pass visually but will still shake through the steering, and it is worth fixing regardless. We cover what testers check in are bigger alloy wheels road legal.
Does refurbishing affect my insurance?
Repainting wheels in a different colour is technically a cosmetic modification and should be declared. Most insurers will not change your premium, but the duty to tell them is yours. See do alloy wheels affect your car insurance.
Send us a photo. If you are not sure whether yours is worth saving, send a picture plus your make and model and we will tell you honestly, including when the answer is to get it refurbished rather than buy from us. sales@omiwheels.com or WhatsApp +44 7753 828059.