Windscreen Chip Repair Cost UK
When to repair vs replace, what it costs, and why waiting turns a £55 fix into a £400 replacement.
Quick Answer
A windscreen chip repair costs £40 to £70. Most comprehensive insurance policies cover it free with no excess and no impact on your no-claims bonus.
Get it done within days, not weeks. A chip left through winter will expand as water freezes inside the damage, turning a quick repair into a full replacement.
Can Your Chip Be Repaired?
Use this checklist to work out whether your damage can be repaired or needs a full replacement.
Smaller than a £2 coin (25mm diameter)? Likely repairable.
In Zone B (swept area but not directly in front of driver)? Repairable if under 40mm.
In Zone A (directly in front of driver)? Repairable if under 10mm.
On the edge of the glass (within 30mm of the seal)? Usually needs replacement.
Multiple chips close together? Depends on number and proximity, but may need replacement.
Has it already cracked into a line? Usually needs replacement.
Is the damage through both layers of laminated glass? Needs replacement.
Repair vs Replace: Cost Comparison
Chip Repair
£40 to £70
- Takes 30 minutes
- Often £0 through insurance
- No excess applied
- No no-claims impact
- No ADAS recalibration needed
- Drive away immediately
Full Replacement
£250 to £800+
- Takes 1 to 2 hours plus cure time
- Insurance excess applies (£50 to £100)
- ADAS recalibration may add £150 to £500
- Cannot drive for 30 to 90 minutes after
- Full adhesive cure takes 24 hours
- May need to book 1 to 7 days ahead
Who Does Chip Repair in the UK?
| Provider | Cash Price | Service | Insurance Direct? |
|---|---|---|---|
| Halfords | £45 | Walk-in at stores | Some insurers |
| Autoglass | £55 to £75 | Mobile or workshop | Yes (most insurers' primary) |
| National Windscreens | £50 to £70 | Mobile or workshop | Yes |
| Auto Windscreens | £45 to £65 | Mobile | Yes |
| Independent fitter | £30 to £50 | Varies | Some |
Insurance for Chip Repair
Most UK comprehensive car insurance policies cover windscreen chip repair at no cost to you. No excess. No impact on your no-claims bonus. The insurer treats it as a separate benefit, not a claim.
To use your insurance for a chip repair: ring your insurer's glass helpline (not the main claims line). They will book you with their approved repairer, which is usually Autoglass, National Windscreens, or Auto Windscreens. The repairer does the work and bills the insurer directly. You pay nothing.
If you only have third-party insurance, chip repair is not covered. In that case, Halfords at £45 or an independent fitter at £30 to £50 is the most affordable option.
The Danger of Waiting
Every chip becomes a crack eventually
Water seeps into the chip through the outer layer of glass. In winter, that water freezes and expands, pushing the damage outward. Temperature changes between cold nights and warm cabins stress the glass further. Road vibration does the rest.
A chip that could have been repaired for £55 in November becomes a 15cm crack by February. At that point, the only option is a full replacement at £300 to £600 or more.
It also matters for your MOT. A chip larger than 10mm in Zone A or 40mm in Zone B will fail your test. Failing means rebooking, paying for a rushed replacement, and potentially not being able to drive until the work is done.
Frequently Asked Questions
Is windscreen chip repair free on insurance?
Yes, on most UK comprehensive policies. Ring your insurer's glass helpline. They will book an approved repairer, who does the work and bills the insurer directly. No excess, no no-claims impact.
How long does chip repair take?
About 30 minutes for a single chip. The technician injects clear resin, cures it with UV light, and polishes the surface. You can drive immediately afterwards.
Can a repaired chip crack later?
A properly repaired chip is structurally stable. However, if the chip was repaired late (after water ingress) or was near the glass edge, there is a small risk of future spreading. Early repair gives the best result.
Will a repaired chip pass an MOT?
Yes. A good repair leaves minimal distortion and will pass without issue. The key is getting it done before the chip spreads beyond the MOT size limits.