Repair first, replace only when you must

A windscreen is two layers of glass with a plastic interlayer bonded between them. Most stone chips only damage the outer layer. If the chip is caught early, resin can fill it, stop it spreading and keep the original factory seal in place. That last point matters: the bond between the screen and the body was done on the production line, and every replacement means cutting it out and starting again.

Arrive Alive's advice is blunt. Once you notice a chip or crack, have it seen to as soon as possible, before it spreads and impairs visibility. Wait too long and repair is no longer an option.

Which chips can usually be repaired

Common industry guidance is that a chip smaller than a five-rand coin and outside the driver's line of sight can usually be repaired. That is a rule of thumb, not a promise. The fitter will look at the type of break, its depth and how fresh it is before saying yes.

  • Bullseye and star breaks with short legs are the classic repairable chips.
  • Fresh chips repair better than old ones, because dirt and water have not yet worked in.
  • A chip with one short crack leg may still be repairable if caught quickly.
  • A chip right at the edge of the glass is usually not, because the edge carries stress.

When repair is not safe

Some damage should not be filled, even if it looks small. A repaired chip always leaves a slight mark, and in the zone directly in front of the driver that mark can distort the view. Long cracks cannot be relied on to hold. Damage that goes through both glass layers means the laminate itself has been compromised.

If the chip sits over the camera window behind the mirror, the fitter may advise replacement, because resin can affect how the camera sees the road. If your screen does need replacing, see windscreen replacement and our guide to deciding between repair and replacement.

  • Damage in the driver's direct line of sight.
  • A crack longer than the fitter's repair limit, or one that keeps running.
  • Damage that reaches the edge of the glass.
  • Damage on both the inside and outside layers.
  • A chip over the camera or sensor area.
  • Old chips full of dirt, or chips that have already been badly filled.

What is involved in a resin chip repair

Chip repair is a short job, and it is often done in a driveway or a parking lot. A typical process looks like this:

  • Inspect. The technician checks size, position, type and depth, and confirms the chip is safe to repair.
  • Clean the break. Loose glass is picked out and moisture is driven off, sometimes with gentle heat.
  • Mount the injector. A bridge tool is fixed over the chip to seal it.
  • Inject the resin. The tool cycles between vacuum, which pulls air out of the break, and pressure, which pushes clear resin into it.
  • Cure. A UV lamp hardens the resin.
  • Finish. Excess resin is scraped flush and the surface is polished. A faint mark often remains. The aim is strength and stopping the spread, not an invisible repair.

Why chips spread, especially in Pretoria

Temperature change is the usual trigger. Pointing a cold aircon blast at a sun-baked screen, or washing a hot car with cold water, puts stress on the damaged spot. Vibration from rough road surfaces and potholes does the rest. Highveld summers bring hot afternoons, sudden storms and hail, so a chip picked up in October can easily be a crack by December.

Until it is repaired, keep the chip clean and dry. A strip of clear tape over it keeps out dirt. Avoid aiming the demister straight at it and avoid slamming doors.

Insurance and chip repair

Many insurers pay for chip repairs, and some charge no excess for them, because a repair is far cheaper than a new screen. Naked, for example, says it does not charge an excess on glass claims of R2,000 or less. Policies differ, so check your own schedule. Our windscreen insurance claim guide explains the details.

We have local chip repair pages for Menlyn, Garsfontein, Moreleta Park, Montana, Sinoville and Centurion. Hail season damage is covered in our hail damage guide.

What drives the cost

We do not publish prices. The fitment business quotes you directly once it knows the exact vehicle and the damage. These are the factors that usually make the difference:

  • How many chips need filling in the same visit.
  • The type and size of the break, and whether it has a crack leg.
  • Whether the repair is done on site or at a fitment centre.
  • Whether the job is claimed and how your insurer treats glass repairs.
  • Whether the chip turns out to be unrepairable, in which case the quote becomes a replacement.

Our guide to what a windscreen replacement in Pretoria depends on explains how to compare quotes fairly.

Windscreen chip and crack repair by suburb

By vehicle type

Frequently asked questions

How small does a chip have to be to repair?

Common industry guidance is smaller than a five-rand coin and outside the driver's line of sight. The fitter makes the final call after inspecting the type and depth of the break.

Will the chip disappear after repair?

Usually not completely. A faint mark often remains. The purpose of the repair is to restore strength and stop the chip spreading.

How long does a chip repair take?

It is a short job compared with a replacement, and it can often be done where the car is parked. Ask the fitter how long they need for your chip.

Can a crack be repaired?

Short cracks running from a chip can sometimes be repaired if caught early. Long cracks, cracks at the edge and cracks in the driver's view usually mean the screen must be replaced.

What should I do until the chip is repaired?

Cover it with clear tape to keep dirt out, avoid blasting the aircon or demister at it, avoid washing a hot car with cold water and have it looked at soon.

Does insurance pay for chip repair?

Many insurers do, sometimes with no excess. Check your policy schedule or ask your insurer.

Sources

Areas we cover

Other glass services

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