PC Repair

PC Repair

Personal computer (PC) repair services and upgrades services for all PC make and models.

We are a PC repair and service firm and we offer very competetive rates for all makes and models of PC 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 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 PC repair company that offers competitive rates for any brand of PC repair for home users, students and business of all sizes. Before getting started with any repair work, we make sure that the PC is thoroughly analysed.

0 29 2132 1095
29 Crwys Rd, Cardiff CF24 4NB

What Services we offer for PC repair

PC Virus Removal Cardiff at NiwTech

PC Virus Removal

Our experts can remove all PC viruses, PC malware, PC spyware and PC adware from your PC computers. Contact our team today if you suspect your PC is infected

PC upgrade in Cardiff at NiwTech

PC System Upgrades

Are you planning to increase the performance of your PC computer with a memory or SSD upgrade? NiwTech PC Repair is an established PC repair store providing PC memory upgrade and replacement services to customers for PC desktop computer and notebook computer models. No replacement parts are included.

PC Computer Windows installations in Cardiff at NiwTech

PC Windows Installation

PC suffer from Windows problems and we can resolve all types of Windows issues. PC Windows issues can happen due to corrupt updates or even if there is faulty hardware. We will diagnose the issue and quickly. No replacement parts are included.

PC Data Recovery in Cardiff at NiwTech

PC Data Recovery

PC Data Recovery: We recover data from PC and internal and external hard drive

PC Driver Updates in Cardiff at NiwTech

PC Driver Updates

As all PCs use sound, video cards, motherboards, and processors, there are various types of device drivers supporting the system. Updating all of them regularly takes time and effort – that’s why NiwTech can update your PC windows drivers without any problems.

PC Memory Upgrades in Cardiff at NiwTech

PC Memory Upgrades

Adding memory (RAM) to your desktop computer can instantly make your computer faster, increase system responsiveness, and make multitasking seamless.

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PC Hardware Replacement in Cardiff at NiwTech

PC Hardware Replacement

Any time a PC component stops working, or just becomes unstable, as we all know will happen from time to time, we have to decide whether to replace it, have it repaired.

PC Software Installation in Cardiff at NiwTech

PC Software Installation

Installing new software and installing upgrades can be tricky. NiwTech will ensure PC Software Installation are carried out correctly and ready for you to use.

PC Computer recycling Cardiff at NiwTech

PC Recycling

We provide PC Recycling & Disposal Service.

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PC Software Repair

PC Software Repair

All PC software repair situations, we’ll diagnose and fix your PC issue on the spot. And that means the majority of repairs are completed for a fixed price that’s hard to beat.

PC Hardware Replacement in Cardiff at NiwTech

PC Hardware Repair

If your PC is not performing as you feel it should, NiwTech can help. Symptoms such as screen freezes, abnormal shut-down’s, blue-screen errors, and file corruption can be caused by failing hardware.

PC Data transfers in Cardiff at NiwTech

PC Data Transfer

If you need your data transferring from your old PC to a new one, we can help. We can even transfer data from OLD PC to New PC

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PC Password reset in Cardiff at NiwTech

PC Password reset

Has your PC gone into windows and you forgot your Password? If so, it’s not a big deal; we can unlock it for you. If we are not able to unlock your device, you we will not charge you a penny so there’s no risk involved.

PC Dust Removal & Cleaning in Cardiff at NiwTech

PC Dust Removal & Cleaning

Your PC needs a good cleaning every once and a while to prevent dust build up and overheating. Cleaning a PC is easy to do and only takes about 20 minutes.

PC Hard Drive Replacement in Cardiff at NiwTech

PC Hard Drive Replacement

Is your PC hard disk drive clicking or noisy? Maybe your PC computer is slow or not opening some files. Stop work right away to avoid further issues and we’ll be happy to replace your PC drive and ensure your files are safe.

PC Fix

0 29 2132 1095
29 Crwys Rd, Cardiff CF24 4NB

PC Repair

Computer Repair, Same Day PC Repair

There are many different makes and models of Personal Computers (PCs) and computers but we are pretty confident that our NiwTech experts have seen them all during our 20 years in the computer repair business. NiwTech can fix all makes and models of computers including Apple computers, Acer computers, Dell computers, HP computers, Lenovo computers, Toshiba computers, Samsung computers, Microsoft computers, Alienware computers, and Google computers to name just a few.

Today PCs are very powerful machines with lots of high-performance specs and unfortunately occasionally some of the hardware parts need a bit more than TLC and need to be replaced. Another common problem that some computer users find, tends to be with the software on the computer.

Computer Repair

We are industry experts Computer Repair and we perform a complete, gold-standard diagnosis of your PC within 24 working hours, but most commonly in as little as 4 hours. Our NiwTech engineers pride themselves in being able to accurately and precisely find the root cause of the problem and they have done this through years of excellent workmanship.

Once our NiwTech engineers have isolated the issue, we will provide you with a no obligation quote for Computer Repair that will not have any hidden charges added to the final bill- what we quote at this point is final. We pride ourselves in being able to provide our customers with the most economically feasible option because your satisfaction is important to us.

Customer satisfaction is how we have built and maintained our reputable services over our 20 years in the industry. We are so good at what we do that we can have your PC back to you within 24 working hours.

0 29 2132 1095
29 Crwys Rd, Cardiff CF24 4NB
PC IT Support & PC Repairs NiwTech

Do you think that your PC is having some issues with Windows?

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 Windows 10 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 Windows software issues are:


  • Windows 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
  • PC 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
  • Windows missing Taskbar icons
  • No sound in Windows


The issues are certainly frustrating but you don’t need to struggle with them for long. Our computer software experts can diagnose your PC and have it on the fix 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 Repair

30% Student Discounts in all our Computer Repairs

Do you think that your computer has been infiltrated by a virus or malware?

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 PC 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 PC. We will have your privacy restored sooner than you think and our prices are the most competitive on the market.

person looking for laptop repair NiwTech
Laptop Repair Cardiff at NiwTech

Do you feel like your PC could use a boost in performance? Are you considering upgrading your memory or SSD?

An upgrade of RAM or your computer HDD to SSD is a savvy and forward-thinking way of ensuring more longevity from your PC before these components naturally reach the end of their life. NiwTech can have your computer back to you quicker than you think. Our engineers have refined their upgrade service over our 20 years in the industry and we make the process as pain free as possible. Our prices are competitive and all the parts that we use are OEM. Once your upgrade is complete, we will give you a 12-month warranty for your computer hardware replacement parts. Computer Repairs

20% NHS Discounts in all our Computer Repairs

Are you having trouble with your computers USB ports? Has your USB port become damaged?

USB ports are so important for the day-to-day use of your computer that it can be annoying when they don’t function properly. When you try to connect a device via USB do you get error messages or maybe your computer doesn’t detect the USB at all? You may need to have your USB port replaced. Don’t wait and suffer any longer. It may not be as costly or take as long as you think. Our NiwTech technicians can perform a free diagnosis in order to determine whether the issue is caused by software or hardware faults. You have no obligation to accept our quote but if you do, we can have your PC back to you within 24 working hours complete with fully functioning USB ports.

Mac Book Air Repair in Cardiff

12 months warranty on all PC repairs 

Fixed Price Laptop Repair in Cardiff NiwTech

Does your PC constantly crash or give you errors about RAM?

Do you suspect that your computer is having some memory issues, but aren’t sure?

Some common signs that your PC memory is being affected are:

  • Your computer’s performance is diminishing
  • The blue screen of death
  • Your PC 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 PC for long. Don’t delay and contact us.

Computer Repairs

Is your computer operating system sluggish and the fans deafening?

When your PC starts to dawdle when carrying out tasks, or if the fans are really working their hardest and your PC barely can stay on before it randomly freezes then it could be a sign that your computer processor is on the way out. Sometimes you might notice that your operating system is slow or won’t even load. The only way to truly get to the bottom of the problem is to have your computer properly diagnosed. Other computer repair shops might claim to know the problem and give you a price without even looking at the computer and for us, this is a huge red flag. At NiwTech our experts will be able to tell you the exact component of your computer that is faulty and we will be able to give you a final price on the spot.  

Laptop Repair Quote First Cardiff NiwTech

PC Budget Repairs

Laptop Screen repair Cardiff at NiwTech Wales

Has the worst thing happened and your computer is completely dead? It won’t turn on at all?

This is everyone’s worst fear that when they go to start or continue some important work their PC 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 PC 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.

Gaming PCs Repairs

Are you having trouble playing videos on you PC? Are they blurry or choppy? Or maybe the sound is gone?

Tons of people today choose to stream Netflix or iPlayer online as their only source of “TV”. So, when your video playback starts playing up this can be a huge pain. Some common problems when playing videos can be:

  • Your computer crashes or freezes when you try to play videos
  • The video is out of sync or lags
  • The video is sluggish
  • Video files are corrupted after recovery
  • Some video files don’t play
  • You get a black screen when you try to play videos
  • You get a corrupt error message when you try to play video


Unfortunately, these are all signs of a faulty video card. Our NiwTech engineers have over 20 years experience in diagnosing and repairing video cards. It’s just one of those annoying hardware parts that commonly becomes damaged over time. It doesn’t have to cause you heartache for too long though. Bring your computer to NiwTech and we can have it back to you in 24 working hours at an extremely competitive price.

Laptop keyboard Repair Cardiff at NiwTwch Wales

Computer Upgrades

Apple iMac Repair Newport Wales at NiwTech

Is your computer telling you that it can’t recognise the hard drive? Have you seen the black screen of death when trying to boot up?

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 PC 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.

Computer Repairs

Are you unable to use your CD/DVD drive as your computer won’t read the disk?

Sometimes this can allude to a software issue but this can also mean that your CD/DVD drives need to be replaced. The only way we would be completely confident in saying this is after a full diagnosis of your PC. A diagnosis normally takes our highly skilled NiwTech engineers as little as 4 hours. We check every hardware component to ensure that we are completely confident when we suggest a repair to you. The price we quote you will be final as we do not believe in adding any inflammatory charges. Our customer satisfaction is extremely important to us as it is a reflection of the hard work we carry out.

Apple Mac Screen Repair Newport by NiwTech

PC Problem Diagnosis and Support Services

Laptop windows repair Cardiff at NiwTech Cardiff

Has the sound on your computer stopped working?

So many of us today need to use our PC to play music or to watch videos on YouTube so your computer becomes pretty useless when the sound stops working. This could be a sign that your computer sound card is damaged, but it can also point to a number of other issues with could be either computer software or computer hardware related. Sometimes different hardware parts of your PC can cause seemingly unrelated issues. Similarly, you may not even suspect a computer software issue but this too can be the case. The only real way of identifying the cause of the problem is to carry out a complete, computer diagnosis. At NiwTech we do this for free and we guarantee that we will be able to get back to you with the cause of the fault in as little as 4 hours. We can have your computer audio working as good as before within 24 working hours.

Budget Computer Repair

Are the images on your PC monitor blurry or the screen is completely blank?

There is clearly a problem within the PC monitor somewhere, or maybe it could be a computer software issue, or maybe it could be the power supply to the monitor? It’s hard to distinguish what the cause could be without having a detailed inspection of your PC. Our NiwTech specialists have over 20 years experience in computer repair and we are confident that we can isolate the issue for you in record time. Once you agree to our quote we can have your problem solved in as little as 24 working hours at a highly competitive price.

person looking for laptop Screen repair NiwTech

All types of PC issues Repairs

person looking for laptop Data Recovery NiwTech

Do you have issues trying to access the internet on your computer? Does your PC struggle to log in to the Wi-Fi in some places?

This can happen sometimes when web pages open extremely slowly or sometimes your internet home page has changed to something you did not set. It’s difficult to know without carrying out a full diagnosis of your PC, but this can be signs of malware, a problem with your ethernet card or your Wi-Fi card. Your computer can become pretty unusable in todays society if you are unable to access the internet and it doesn’t have to be an issue you have to deal with for long. At NiwTech we have seen everything over our 20 years in the industry. We are so confident in our work that we give 12 months computer hardware part warranty and 6 month software support.

Computer Repairs

Do you have problems switching your PC on? Do you have problems getting it to stay on?

This could be a sign that your computer is having power issues. Sometimes it’s extremely difficult to distinguish whether this is a power problem or an issue with another hardware component as the signs can sometimes be vague, such as:

  • Disk error messages
  • Unresponsive PC when the power button is pressed
  • Your computer shuts off randomly
  • PC date and time incorrect
  • Random computer crashes
  • Blue screen crashes
  • Your computer is very noisey
  • Recurring failure of PC components
  • PC won’t start but the fans spin
  • Some fans make a grinding sound
  • Circuit breaker popping when the computer is turned on
  • Your PC takes much longer to boot and shutdown than it used to
  • Spontaneous rebooting or intermittent lockups during normal operation (small brownouts)
  • Memory Errors
  • HDD and fan simultaneously failing to spin
  • HDD file system corruption
  • USB devices power issues
  • Overheating due to fan failure
  • Electric shocks that are felt when the case is touched
  • Smoke
  • BIOS beeping codes detected

To prevent any further damage to your computer you should bring it to NiwTech where we can complete a full diagnosis of your PC within 4 hours. This enables our engineers to isolate the exact fault and once we know this we can give you an accurate price of the work that needs to be carried out. Our technicians have over 20 years experience and we are confident that you will be extremely satisfied with the work that we do.

person looking for laptop Power Socket repair NiwTech

Computer Fix