iMac Repair in Chesterfield

Exlen Technology repairs all iMac models at our workshop on Chatsworth Road, Chesterfield, from older 21.5 and 27-inch Intel iMacs to the latest 24-inch Apple silicon models. We’ve been fixing computers for over 30 years, carry out board-level repairs, and you’ll always get a clear quote before any work starts.

Call 01246 236363
Message us on WhatsApp

iMac repairs from £60
SSD upgrades for older iMacs
Drop in at 172 Chatsworth Road

iMac repairs we carry out

Screen replacement, including Retina 4K and 5K displays
SSD upgrades: replacing slow hard drives and Fusion Drives
Memory upgrades on models that allow it
Power supply replacement for iMacs that won’t turn on
Logic board repair: board-level repairs as well as replacements
Fan cleaning and replacement for overheating and noise
Other hardware repairs: speakers, cameras, ports and cables
macOS and software: reinstalls, updates, slow Macs
Data recovery, including from failed hard drives
Liquid damage assessment

iMac models we support

These are the iMac models we see most often. Search by screen size, year, chip or the model number on the underside of the stand.

Find your model

Showing all 14 models

Not sure which model you have? Click the Apple menu and choose About This Mac. If it won’t turn on, the model number, starting with A, is printed on the underside of the stand.

iMac 24-inch (Apple silicon) 5 models

iMac M1 (24-inch, 2021, two ports)A2438
iMac M1 (24-inch, 2021, four ports)A2439
iMac M3 (24-inch, 2023, two ports)A2873
iMac M3 (24-inch, 2023, four ports)A2874
iMac M4 (24-inch, 2024)

iMac 21.5-inch (Intel) 4 models

iMac (21.5-inch, 2009–2011)A1311
iMac (21.5-inch, 2012–2017)A1418
iMac Retina 4K (21.5-inch, 2015–2017)A1418
iMac Retina 4K (21.5-inch, 2019)A2116

iMac 27-inch (Intel) 5 models

iMac (27-inch, 2009–2011)A1312
iMac (27-inch, 2012–2013)A1419
iMac Retina 5K (27-inch, 2014–2017)A1419
iMac Retina 5K (27-inch, 2019–2020)A2115
iMac Pro (27-inch, 2017)A1862

We couldn’t find that model in our list. We very likely still repair it. Call 01246 236363 or bring it in and we’ll take a look.

Common iMac problems we fix

Slow hard drives

Many Intel iMacs came with a slow hard drive or Fusion Drive. Swapping it for an SSD is usually the biggest improvement you can make, and makes an older iMac feel like new.

Won’t turn on

A failed power supply is a common reason an Intel iMac won’t start. It can also be a logic board fault. We test each part so you don’t pay for parts you don’t need.

Cracked or faulty screens

Cracks, lines, patches or a dim screen can all be fixed with a replacement screen. Prices depend on the model, and 27-inch Retina 5K screens cost the most.

Overheating and noisy fans

Dust builds up inside iMacs over the years, making the fan run loudly and the iMac run hot and slow. A clean inside usually makes it quieter and cooler.

iMac repair questions

How much does an iMac repair cost?

iMac repairs start from £60. Screen replacements range from around £250 for a refurbished screen to £1,000 or more, particularly for 27-inch Retina 5K and 24-inch models. We always give you a clear quote before any work starts.

My iMac is really slow. Can you speed it up?

Often, yes. Many Intel iMacs came with a slow hard drive or Fusion Drive, which is the main reason they feel sluggish. Replacing it with an SSD is usually the single biggest improvement you can make, and can make an older iMac feel like new.

Why do iMac repairs take longer than some other repairs?

On iMacs from 2012 onwards, the screen is glued to the case, so almost any internal repair means carefully removing the screen and refitting it with new adhesive. Some parts also have to be ordered in. Most iMac repairs take around a week, and we'll tell you the expected time when we quote.

My iMac won't turn on. What could it be?

Common causes include a failed power supply inside the iMac, a logic board fault or, occasionally, a faulty power cable or socket. We test each part so you only pay for the one that needs replacing.

Can you add more memory to my iMac?

It depends on the model. 27-inch Intel iMacs have an easy-access memory slot on the back. On 21.5-inch Intel iMacs, adding memory means removing the screen, and on some models the memory is built in. Apple silicon iMacs, from the M1 onwards, can't be upgraded.

Can you recover files from an iMac that won't start?

Often, yes. On Intel iMacs with a failing hard drive, we can usually recover files from the drive. On Apple silicon iMacs, the storage is built into the logic board, so recovering the data usually means getting the board working first.

How do I find my iMac's model?

Click the Apple menu at the top left of the screen and choose About This Mac to see the model and year. If it won't turn on, the model number, beginning with A, is printed on the underside of the stand.

Is my iMac still under warranty?

If your iMac is still under Apple's warranty or AppleCare+, check with Apple first, as the repair may be covered. For iMacs outside warranty, we can quote for the repair.