Cracked MacBook screen: what the repair involves, and checks to make first

Published 27 October 2026

A cracked MacBook screen is one of the most common repairs we see, and one of the most misunderstood. Many people expect a new piece of glass, like a phone repair. On most modern MacBooks it doesn’t work that way, and knowing why helps you understand the quote, check whether the fault really is the screen, and protect your files before the laptop goes in.

Why it’s usually the whole display assembly

On older MacBooks the glass and the LCD panel were separate layers, so a cracked front glass could sometimes be replaced on its own. Since the Retina MacBook Pro and the later Retina MacBook Air, Apple has built the display as a single, very thin unit: the glass and the panel are bonded together and fitted into the lid.

That has two consequences. First, a crack in the glass almost always means the panel is damaged too, which is why you often see lines, black patches or colour bleeding spreading out from the impact. Second, on most of these models the reliable repair is to replace the complete display assembly: the lid with the panel, glass, hinges, display cables and camera already fitted. Apple’s own service replaces the whole assembly. On some models a skilled workshop can replace the panel alone, but it is delicate work and only sensible where good-quality parts exist for that model.

Is it the screen, or something else?

A black or garbled screen isn’t always a broken display. Before assuming the worst, it’s worth checking:

• Connect an external monitor or TV. If the picture appears normally on the external screen, the Mac itself is working and the fault is in the display, its cable or its backlight. If nothing appears on either screen, the problem is more likely the logic board, which is a different repair.
• Look closely with a torch. If you can faintly see the desktop when you shine a light on a dark screen, the panel is working but the backlight isn’t. That is often a cable or backlight circuit fault rather than a cracked panel.
• Watch what happens as you open the lid. On some 2016 and 2017 MacBook Pro models, a worn display cable causes uneven lighting along the bottom edge, or a screen that cuts out once the lid passes a certain angle. That is a known weakness of the cable design, and it is a different repair from a cracked screen.
• Check for coating damage. Patchy, worn-looking areas on some Retina screens are wear to the anti-reflective coating, not cracks, and don’t affect how the screen works.

Before you bring it in

1. Back up your files if you can. If the Mac still works with an external monitor, use Time Machine or copy your files to an external drive. A display repair shouldn’t touch your data, but it is always better to have a copy. See our guide to backing up your Mac properly.
2. Stop pressing on the crack. Closing the lid firmly, or pressing on the damaged area, can spread the damage and, on a badly broken screen, push glass fragments into the keyboard.
3. Note your model. The model number is printed in small text on the bottom case (for example A2338). It tells us exactly which display your MacBook needs.
4. Mention any drops or spills. A drop that cracked the screen can also bend the lid or damage the hinges, and liquid can travel further than the screen. Telling us up front means the quote covers everything.

If the MacBook won’t start at all

A MacBook that won’t power on after a fall may have damage beyond the display. If the files on it matter and aren’t backed up, tell us when you book: we can check whether the storage is readable and get your data off first. Our data recovery service page explains how that works.

Book a MacBook screen repair

We repair MacBook Air and MacBook Pro screens at our London Bridge workshop and give you a price before any work starts. See our Apple Mac repair page for more on what we fix, book online for a job number straight away, or call 020 7394 2520. Walk-ins are welcome Monday to Saturday, 9am to 6pm.