Computer Repair In Cardiff Desktop & Laptop

Over 21 years-experience with Computer Repairs – Desktop & Laptop.


We are a Computer repair and service firm in Cardiff. We offer very competitive rates for all makes and Computer models such as Apple, Acer, Dell, Hp, Lenovo, Toshiba, Samsung, Microsoft, Alienware and Google.

We take great pride in our ability to provide an accurate diagnosis and then propose a plan of action that gives our customers the most economically feasible option available.

Our Standard Service turnaround is faster than most, and our Computer Express Service can have you back up and running in hours, not days (subject to parts availability).

Whether for general repairs, cleaning, or upgrades, we can help. We are a full Computer repair company in Cardiff that offers competitive rates for any Computer repair Cardiff brand for home users, students, and businesses of all sizes. Before getting started with any repair work, we make sure that the Computer is thoroughly analysed.

Who we are

Our NiwTech engineers are the best at what they do. Over 20 years, our Computer technicians have honed their skills in all kinds of Computer repairs on all Computer models, and today we stand at the forefront of the Computer repair and solutions industry.

Our passion shines through in the work that we do. We firmly believe that if you don’t love what you do, then you can’t possibly do it the best. This is why we have such a good reputation with our clients and have built our business integrity.

All of our Computer repairs are done on-site. We never send your Computer away to be repaired by any third party. You are welcome to check out our in-repair room at any time so that you can see how we work and, more importantly, how high our standards are.

What we do

We started small learning to repair computers ( PC ). As technology has advanced and upgrades have made in the design of hardware components and software innovation, we, too, have been going from strength to strength behind the scenes. But, we wouldn’t be where we are today if we didn’t invest in our Computer knowledge of technology and keep up to date with all of the advances.

Our NiwTech engineers provide Computer (PC) support in Cardiff and solutions for any Computer model. We have carried out many screen replacements, battery replacements, keyboard replacements, liquid damage repair and Hard-drive upgrades.

Computer Issues

Sometimes it’s difficult to distinguish what exactly is causing the problems with your computer that you are experiencing. Perhaps you have just upgraded to operating system and now you want to throw your computer out of the window because it doesn’t do anything you want it to anymore? Some of the most common problems that can be attributed to operating system software issues are:

  • operating system update won’t install
  • Wi-Fi connection not discoverable
  • Microsoft office files don’t open
  • Bluetooth connectivity problems
  • Sound problems
  • Slow Windows boot times
  • Annoying notifications
  • Computer won’t enter sleep mode
  • Folder settings not remembered
  • Default App choices have changed
  • Unable to install Microsoft Store Apps
  • Computer screen flickering or flashing
  • Black screen errors
  • System restore problems
  • Files opening with the wrong Apps
  • Operating system missing Taskbar icons
  • No sound in operating system

The issues are certainly frustrating but you don’t need to struggle with them for long. Our computer software experts can diagnose your Computer and have it on the mend quicker than you think. Our diagnosis can take as little as 4 hours and we can have your problems sorted within 24 working hours, with 6 month software warranty.

Computer Virus

This can be one of the most frustrating computer issues because no matter how internet savvy you’ve been an invasive virus has found its way in amongst your important documents. If you’re unsure, some common signs that you have computer malware or spyware on your Computer include:

  • Computer is slowing down
  • Computer crashes
  • Internet traffic suspiciously increases
  • Unusual messages show unexpectedly
  • Suspicious shortcut files on your desktop
  • Computer error in the browser
  • Annoying adverts
  • Pop-up messages
  • Computer browser homepage changed
  • Computer security solution is disabled
  • Unfamiliar icons are displayed on your desktop
  • Control panel in your computer can’t be accessed
  • Your friends receive strange messages from you

You might feel like your privacy has been invaded so don’t leave it for too long to come to NiwTech and let us do a thorough diagnosis and carry out a complete digital cleanse of your Computer. We will have your privacy restored sooner than you think and our prices are the most competitive on the market.

Computer Errors

Do you suspect that your computer is having some memory issues, but aren’t sure?
Some common signs that your Computer memory is being affected are:

  • Your computer’s performance is diminishing
  • The blue screen of death
  • Your Computer is freezing
  • Programme installation failure
  • Random reboots
  • Random crashes
  • Files become corrupted
  • Missing RAM
  • Computer beep
  • Video card fails to load
  • RAM isn’t recognised by your computer
  • Incorrect system RAM display

If you are seeing error messages related to RAM then it is quite probable that this is where the fault lies. The RAM or Random Access Memory in full is responsible for short-term data storage. What does that mean? Well this is where the data your computer is actively using is stored so that it can be accessed efficiently. If your experiencing vaguer issues with your computer it may not be hard to know what exactly is causing the problem. NiwTech will carry out a gold-standard, free diagnosis to determine the exact cause of the problem. Our engineers can do this in as little as 4 hours and have your computer repaired within 24 working hours so you don’t have to struggle without your Computer for long. Don’t delay and contact us.

Dead Computer

his is everyone’s worst fear that when they go to start or continue some important work their Computer won’t even turn on. The motherboard is the computer and normally when the motherboard fails your computer basically becomes a very expensive ornament. Occasionally motherboards can partially fail and only one aspect stops working, like embedded video or audio. Either way, we would highly recommend a motherboard replacement, even if the motherboard has only partially failed it is very likely that a complete failure will follow shortly after. At NiwTech we can perform the full diagnosis in as little as 4 hours and if you go ahead with the repair, we can have your Computer back in working order in 24 working hours. All our replacement parts are OEM and come with a 12 month warranty. But what about all of your documents and photos? Well our price includes the data recovery process and we will have all of your data back exactly where you had it originally so that you won’t even know it’s even moved.

Computer Disk

This problem is a horror to behold. Absolutely nobody wants this to happen at any time but it normally does when you have something highly important and time dependent to do. This normally means that your Hard Disk Drive (HDD) has become damaged. If you’re unsure and you think your HDD is playing up, some common signs that your HDD is about to die are:

  • Your Computer is locked and unresponsive
  • You system freezes at start-up and doesn’t boot
  • HDD error messages
  • General start-up failures
  • System BIOS can’t detect the HDD
  • HDD doesn’t spin up
  • Your system freezes
  • You heard grinding or clicking from your computer
  • Files and folders become invisible or corrupt
  • The HDD is inaccessible

The issue with HDDs is that they are an older technology that has be surpassed by Solid-state drives (SSD) in newer computers. We would always recommend that you upgrade your HDD to an SSD. SSDs are much, much faster than their older HDD counterparts. SSDs are also less likely to fail as quickly because they do not contain moveable parts like HDDs. It sounds like a lot of work and a lot of hassle but they us do all the hard work for you. After our NiwTech experts have carried out a full diagnosis we will give you a quote that includes the recovery of all your data and placement of it on the new SSD. It probably won’t take as long as you imagine either; as little as 24 working hours. Contact us today to get the ball rolling.