iMac 21.5 & 27 Retina repairs
Screens, drives and board-level repair on the slim iMac – the 2012 to 2020 machines, including every Retina 4K and 5K model.
Repairs
Something is broken or worn out.
iMac 21.5/27 Slim screen replacement. Complete display assembly includes LCD panel and front glass. Fixes cracked screens, dead pixels, backlight bleeding, and flickering. We typically receive screen assemblies next business day. For urgent repairs, please contact us first to confirm the turnaround time.
What’s included
- Replacement part – no hidden extras
- Fitting & labour by in-house technicians
- Full function test before handover
- Up to 12-month warranty
- Diagnostic fee credited towards this repair
- Your data stays untouched
Professional iMac repair service. Expert diagnostics and the highest-quality replacement parts – same specification as the original – with warranty included.
What’s included
- Replacement part – no hidden extras
- Fitting & labour by in-house technicians
- Full function test before handover
- Up to 12-month warranty
- Diagnostic fee credited towards this repair
- Your data stays untouched
Professional laptop overheating cleaning as preventive service in London. Fix hot laptops, loud fans, random shutdowns, and performance throttling. Deep cooling system cleaning, thermal paste replacement, fan maintenance. Same-day service when arranged in advance.
What’s included
- Full strip-down, clean and reassembly
- Fresh thermal paste and pads where needed
- Labour by in-house technicians
- Temperatures checked under load before handover
- Up to 12-month warranty
- Your data stays untouched
Not sure what is wrong with your MacBook? Diagnostics finds the source of the problem and puts a clear quote on fixing it. We test the machine – and open it up if the fault calls for it – then tell you what is wrong, what the repair costs and what the chances of success are. You decide with the quote in hand.
Good to know: Pay when you drop it off. Fee not refundable. Go ahead with the repair and the fee comes off the price.
What the assessment fee covers
- Full assessment by an in-house technician
- An honest verdict on what is wrong
- A firm price before any repair starts
- Fee credited towards the repair – you pay the balance of the quote
- No obligation to proceed
Professional macbook water damage treatment in London. Ultrasonic cleaning of liquid residue and corrosion, then a full assessment of what the liquid reached.
Please note: The fee covers the clean and the diagnosis together – sometimes the clean alone brings it back. It is not refundable if the device can’t be saved.
What the cleaning fee covers
- Ultrasonic cleaning and corrosion treatment
- Full diagnostics once the board is clean
- An honest verdict on what is worth saving
- A firm price for any further repair before it starts
- No obligation to proceed
Software & Data
It powers on, but it will not behave.
Assessment first: we tell you what can be recovered from your MacBook, and what the recovery costs, before any recovery work starts. Dead MacBooks, liquid damage, failed or soldered storage. On Retina models the SSD is soldered to the logic board, so recovery is board-level work. The data comes first, whether or not the MacBook itself is worth repairing.
Good to know: If nothing can be recovered, there is nothing further to pay. The assessment fee is not refunded – it covers the work of finding out.
Get a quote to get your data migrated between computers. We can move and setup your environment cross-platform: Mac to Mac, Windows to Mac, Mac to Windows, including proper setup and ensuring compatibility.
What’s included
- Files, applications, settings and mail moved across
- Labour by in-house technicians
- Checked together before you take the machine away
- Your original device left as it was
Professional virus and spyware removal for Mac. Manual clean-up of adware, hijackers and malware – your files stay in place.
Professional Mac OS system installation service. Clean installation, data migration and system optimization by experienced technicians.
What’s included
- Diagnosis and software-side repair
- Labour by in-house technicians
- Full function test before handover
- Diagnostic fee credited towards this repair
- Your data stays untouched
Know the fault, but don’t see it listed? Describe it and we’ll price it from your description – free, no device needed. Not sure what’s wrong? That’s what the Diagnostics Service above is for.
Which iMac 21.5 & 27 Retina is yours?
The repair depends on which generation you have, and they look identical from the outside. Click the Apple menu › About This Mac – the model number is on the same line as the year. If it will not switch on, it is printed in small type on the underside.
Not sure? Send us a photo of the underside and we will read it for you – it takes us a minute and saves you ordering the wrong part.
The upgrade that changes these machines
Most 21.5 and 27-inch iMacs of this era shipped with a spinning hard drive or a Fusion Drive, and by now that disk is the reason the machine feels slow – not the processor. Replacing it with an SSD is the single biggest change you can make to one of these, and it is usually the difference between replacing the iMac and keeping it for another few years. We move your system and files across, so it starts up as the same machine, only quick.
Opening a slim iMac without leaving a trace
From 2012 Apple bonded the display to the chassis with an adhesive strip instead of magnets. It is meant to be cut, and it is replaced with new adhesive of the correct spec on reassembly – done properly there is no gap, no dust behind the glass and nothing to see. This is also why the glass and the panel are one part on these: a crack over a working picture still means a display assembly, unlike the 2009–2011 models where the glass lifts off on its own.
What tends to fail by now
Hard drives and the disk half of Fusion pairs, first and by a distance. Then: 27-inch graphics faults showing as lines, artefacts or a black screen with the fans running; power supplies on machines that have lived in warm rooms; and cracked or delaminating panels. Fan noise on the 2012–2015 21.5-inch is often a failed hard-drive temperature sensor rather than anything overheating, and that is a cheap fix once it is identified correctly.
Good to Know
The questions we are asked most about iMac 21.5 & 27 Retina repairs.
Not answered here? Ask us – we reply the same working day.
The glass is cracked but the picture is fine. Do I need the whole screen?
On these, yes. From 2012 the glass is bonded to the panel and they are replaced as one assembly. The cheaper glass-only repair applies to the 2009–2011 iMacs, which used a separate magnetic front glass.
Can I put an SSD in it?
Yes, and it is the best money you can spend on one of these. Which SSD depends on the year – some take a 2.5-inch drive, later ones take a blade SSD, and several will take both. We check what yours has before quoting.
My Fusion Drive has got slow, or it is clicking. Is the whole thing dead?
Usually it is the hard-disk half of the pair failing while the small SSD half carries on. We can replace it with a plain SSD and move your data across. If it is already clicking, stop using it and bring it in – every extra hour of running makes recovery harder.
Is it safe to cut the screen off to get inside?
It is how Apple intends these to be opened. The adhesive is a consumable part and comes off with heat and a thin cutting tool; new adhesive goes on at reassembly. The risk is doing it cold or in a hurry, which is where cracked panels come from.
Are parts still available for the older ones?
For most, yes. Where new stock has run out we use tested original panels and boards rather than substitutes, and we tell you up front which one your repair uses.