If your MacBook Air M4 needs liquid damage repair, our London technicians can help, usually with a quote on the same day you bring it in.
Liquid damage isn’t covered by Apple’s standard warranty, so this is one of the most common reasons newer Airs come to us. Switch off and bring it in straight away. We clean and repair the board and replace damaged parts.
The M4 Air’s board layout is close to the M3’s, so we know where liquid tends to collect and which components usually need attention first.
About this model: The M4 MacBook Air (2025) keeps the flat-edged design but adds 16GB memory as standard, a 12MP Center Stage camera and a sky blue finish. It’s young enough that many are still under Apple’s warranty or AppleCare+, and we’ll tell you if yours is.
Signs it needs liquid damage repair
- Won’t turn on
- Keys not working
- Trackpad erratic
- Charging problems
How we do it
If you’ve just spilled something: switch the Mac off, unplug it, don’t try to turn it on or charge it to ‘check’, and don’t put it in rice. Corrosion keeps spreading while there’s power on the board.
Once it’s apart, the board is cleaned ultrasonically, dried, and inspected under the microscope. Corroded components are replaced, and then we check the battery, keyboard, trackpad and ports individually.
On this model the keyboard is part of the top case, so if it’s damaged we’ll quote for the top case as a separate item so you can decide.
At a glance
| Years | 2025 |
|---|---|
| Processor | Apple M4, fanless |
| Storage | Soldered to the logic board |
| Memory | Unified memory inside the chip package (not upgradeable) |
| Battery | Held with adhesive |
| Power / charging | MagSafe 3 plus two Thunderbolt 4 ports |
Before you bring it in
Keep it switched off and unplugged, open the lid into an upside-down V to drain it (for laptops), and bring it in as quickly as you can. Tell us what was spilled: sugary and salty drinks corrode faster than water.
Which model do you have?
This page covers the MacBook Air M4 (13 & 15-inch, 2025) (MacBook Air (13-inch, M4, 2025) and MacBook Air (15-inch, M4, 2025)). Look under Apple menu > About This Mac, or check the small print on the bottom case for the A-number. Not sure? Bring it in and we’ll identify it for you.
Price
Non-complex board repairs from £165 + VAT; complex repairs (liquid, lightning or GPU faults) from £285 + VAT. The initial assessment and advice are free, as long as we don't need to open your Mac. If a technician needs to open it and spend time diagnosing the fault, or you need a report for an insurance claim, it is booked in as a diagnostic at £45 + VAT (£54). All prices are subject to inspection, and nothing is done without your approval.
Questions we’re often asked
My Mac might still be under warranty. Should I come to you?
If the fault is a manufacturing defect and your Mac is within Apple’s warranty or AppleCare+, Apple is usually the cheapest route and we’ll tell you so. Accidental damage, spills and anything outside cover is where we can help, often faster.
Should I put it in rice?
No. Rice doesn’t remove the minerals and sugar left behind, and meanwhile corrosion carries on. Switch it off and bring it to us as soon as you can.
Does the battery need replacing too?
Not always. On this model the battery is held with adhesive in the top case, so we test it first and only quote for it if it’s worn or damaged.
Do I pay if you can’t fix it?
No. If the repair isn’t possible, you don’t pay for it, and the free initial assessment costs nothing.
Book a repair
Call 020 7394 2528 or email info@mac-repair.london with a short description of the fault and we’ll come back with a quote.