Diagnostics Service

Are you after help with IT mysteries? Look no further! What can we do for you? - Diagnostics Service Chesterfield

IT Diagnostics Specialist – aGeek Chesterfield

Expertise in Troubleshooting

At aGeek, we thrive on unravelling complex IT issues — whether it’s a faulty desktop or laptop, a phone or tablet, a games console, or a networking or software problem. We’ve got the tools, the experience, and the know-how.

Some diagnostics can be completed the same day, especially for straightforward issues, but our standard turnaround time is typically 3–5 working days, depending on workload and fault complexity. Please note: diagnostics can take up to 28 days in rare cases involving intermittent faults or where deep investigation is needed.

If you’re unsure what’s wrong, or if you’ve tried a DIY or failed repair attempt, our diagnostic service is the ideal starting point.

Professional Diagnostics

Trusted by Insurers and Banks

Unlike many local repairers who offer only a basic inspection, our diagnostics go far beyond “it’s probably the motherboard.” We carry out detailed component-level fault finding — the same level of inspection used by insurance companies and financial institutions to validate claims.

We identify the specific part that’s failed, such as a shorted capacitor, failed power rail, or memory controller, rather than replacing large and expensive parts blindly.

In most cases, we can even carry out board-level repairs, saving you the cost of complete replacements and reducing e-waste.

What’s Included in Our Diagnostics (£49.99)

  • In-depth hardware and software fault testing

  • Precise identification of component-level issues

  • Clear and professional reporting – suitable for insurance or warranty use

  • Transparent quote for repair – £49.99 is deducted from the repair cost if you go ahead

  • Honest advice if your device is beyond economical repair

Our engineers (“Geeks”) don’t just find the problem — they explain it without the jargon, so you can make informed decisions.

 Comprehensive Checks

  • Hardware issues: From faulty RAM to blue screens or no power

  • Software glitches: Boot loops, driver errors, or slow performance

  • Network issues: Wi-Fi dropouts or LAN problems

  • User-attempted repairs: We investigate and correct what may have gone wrong

 Flexible and Transparent Process

  • You’ll receive a full breakdown of your device’s issue(s)

  • You’re under no obligation to proceed with the repair

  • If you don’t proceed, we’ll return the device with the report for your records

  • If you want it on the bench immediately, ask about our Express Service (£25 extra)

Why Choose aGeek?

  • Same-day diagnostics available where possible

  • Standard turnaround: 3–5 working days

  • Up to 28 days for complex or intermittent faults

  • Used by insurers and banks for official assessments

  • Genuine, in-depth fault detection, not just guesswork

  • We aim to repair at board level wherever possible

  • Located in Chesterfield town centre – aGeek House, 73 West Bars, S40 1BA

  • Questions? Call us on 01246 554440

Want it on the bench immediately?

Express Service £25 extra 

20,000+ Devices Repaired

UK, EU and US Residents Helped

Thousands Saved on Replacement Devices

DIY Repairs – Why You Might Want to Think Twice

At aGeek in Chesterfield, we regularly see devices that have been brought to us after a failed DIY repair attempt. While we completely understand the satisfaction that comes with fixing something yourself (we are Geeks, after all!), there are some important reasons why DIY tech repairs often go wrong.

Here are some devices we have helped our DIY-ers repair:

  • PCs and custom desktops

  • Laptops (Windows, MacBook, Chromebook)

  • iPads and tablets

  • Mobile phones (iPhone, Samsung, and more)

  • Game consoles

  • And more…

Common DIY Pitfalls

  • Lack of Specialist Tools: Most consumer repair kits don’t include the precise tools needed for modern electronics like smartphones, tablets, laptops, or gaming consoles.

  • Poor Quality Parts: Cheap online components are often substandard, used, or even faulty straight out of the box.

  • Inexperience Leads to Damage: Without training, it’s easy to damage delicate connectors, strip screws, or crack screens during disassembly.

  • Warranty Risks: Attempting repairs on your own will usually void any manufacturer warranty — leaving you liable for the full replacement cost.

  • Leftover Screws or Missing Features: It’s frustrating to reassemble a device only to realise something no longer works properly or that you’ve got spare screws left over!

Why Let aGeek Handle It Instead?

When you choose aGeek, you’re choosing experience, quality parts, and professional repairs that are done right the first time.

  • All Repairs Covered by Warranty: We offer up to 1-year warranty on most repairs — something no DIY repair can match.

  • Diagnostic Accuracy: We don’t guess. We diagnose faults down to the component level.

  • Fixed by Experts: Our skilled technicians use proper tools and proven methods to ensure your device is safe and functional.

  • Ongoing Support: If anything goes wrong with a repair, we’ll put it right under warranty, quickly and without hassle.

Save Time, Stress and Money

Before opening your device at home, consider whether it’s worth the risk. One wrong move can turn a minor repair into a major replacement. Bring it to aGeek — we’ll handle it with care and precision.

We repair all major devices, including:

  • Desktop and laptop PCs (all major brands)

  • Custom-built gaming rigs

  • Apple MacBooks, iMacs, and Mac Minis

  • Phones and tablets (Android, iOS, and others)

  • iPads and smart devices

  • Games consoles (PlayStation, Xbox, Nintendo Switch)

  • Car entertainment systems (e.g., reversing cameras, head units)

  • Car radios and dashboards

  • Industrial control panels

  • CCTV DVR and NVR units

  • Router and networking equipment

  • Boiler circuit boards

  • Home automation controllers

  • Audio interfaces, DJ controllers, and music gear

  • Power supplies and chargers

  • Electric scooter and e-bike controllers

  • Smart TV boards and HDMI boards

  • POS systems and card machines

  • And almost anything else with a circuit board!