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Custom Computer Repair – Desktop PCs Built with Your Components and Configurations

Professional custom computer repair in Tallinn — precise diagnostics and reliable troubleshooting for desktop PCs built with your own components and individual configurations. We service gaming builds, video editing and 3D workstations, engineering and office systems, as well as high-performance home PCs.

Leave your phone number and receive a 10% discount on the first repair of your device

Give us a call

+37256911777

Emergency Custom Computer Repair
Warranty on All Work Performed

Same-Day Diagnostics
Serving Clients in Tallinn

Common Custom Computer Issues

1. Overheating and Excessive Cooling System Noise

In custom desktop PCs, especially gaming systems and professional workstations equipped with powerful CPUs and GPUs, overheating is often caused by dust buildup in radiators, dried thermal paste, or improperly.

3. Power Supply Unit (PSU) Malfunctions

A computer that does not power on, shuts down unexpectedly during gaming, or restarts under load often indicates PSU-related issues.

5. Continuous Reboot Loop

A custom PC may enter an endless reboot cycle without completing Windows startup. This behavior is often linked to unstable RAM, BIOS / UEFI misconfiguration, CPU overheating, or storage-related errors.

7. Port and Interface Failures (USB / HDMI / DisplayPort / LAN)

If the system does not recognize connected devices, displays no image output, or experiences unstable network connectivity, the issue may be caused by damaged ports or faulty motherboard controllers.

2. SSD or Hard Drive Failure

If a custom PC fails to boot Windows, freezes during startup, or displays a “No Boot Device” message, the storage drive is often the root cause.

4. Graphics Card (GPU) Problems

Screen artifacts, visual glitches, black screens, driver crashes, or game freezes are common symptoms of GPU-related issues.

6. Windows Errors and Boot Issues

Blue Screen of Death (BSOD), automatic repair loops, system freezes after updates, or unusually long boot times are frequent issues on custom PCs.

8. Liquid Damage and Component Corrosion

Liquid entering the case can cause short circuits, oxidized traces, and damage to power components.

Custom Computer Repair Process

1. Initial Inspection

Custom desktop PC repair begins with a detailed initial diagnostic. We check how the system responds to power-on, verify correct POST execution, and confirm proper detection of the CPU, RAM, and storage devices.

2. Advanced Diagnostics

If the initial inspection does not reveal a clear cause, we proceed with comprehensive hardware and software diagnostics. Storage drives are tested for wear and read/write errors, RAM is stress-tested, and GPU and PSU performance are analyzed under load.

3. Repair Approval and Service Execution

After diagnostics, we provide a clear technical report outlining the detected issues. We explain which component is responsible and offer practical solutions — repair, replacement, or upgrade. Costs and timelines are confirmed before any work begins.

4. Testing and Handover

Before returning the system to the client, each custom PC undergoes mandatory load testing. We verify stability during extended stress conditions, monitor CPU and GPU temperatures, and confirm proper operation of storage devices, memory, and all connectivity interfaces.

Services and prices

from 10€

1. Visual inspection
2. Check the power supply
3. Component diagnostics
4. OS and software verification

from 5€

1. Dismantling of old
2. Preparation of new
3. Installing new
4. System testing

from 20€

1. Disassembling case
2. Dusting
3. Thermal interface replacement
4. Thermal test

from 30€

1. Preparing the computer
2. BIOS setup
3. System installation
4. OS setup

All services

Services	Prices
Diagnostics	from €10
Cooling system cleaning and thermal paste replacement	from €20
System recovery	from €20
Windows reinstallation	from €30
Internet connection setup	from €10
Malware removal	from €10
Software installation	from €10
System optimization and registry cleanup	from €10
Antivirus installation	from €10
Component replacement	from €5
Custom motherboard installation	from €20
Processor (CPU) installation	from €20
Graphics card (GPU) installation	from €5
HDD or SSD (SATA / NVMe) installation	from €5
Air cooling system installation	from €20
Liquid cooling system installation (AIO / custom loop)	from €30
Power supply (PSU) installation or replacement	from €20
RAM installation	from €5
BIOS / UEFI configuration	from €10
BIOS flashing with programmer	from €50
Custom motherboard repair	from €80
Cable management (internal cable routing and organization)	from €10
Custom PC assembly or full rebuild	from €40
Additional data protection service during repair and cleaning
When you bring your device in for repair, whether it's computer repair, laptop repair, All-in-One PC repair, or computer cleaning or laptop cleaning, we offer a unique data protection service. If your laptop or computer has important files stored on it, we ensure their safety by temporarily removing your data drive (SSD or HDD) during the repair. This completely eliminates any risk of data loss or damage during the repair process. This service is especially useful for the following work: laptop and computer repair, laptop and computer cleaning, All-in-One PC repair. We remove your data drive, hand it over to you for temporary storage, and reinstall it in the device after the work is completed. In each case, we include a special clause in the receipt confirming our responsibility for the confidentiality of your data. The signature of the technician performing the repair confirms that we take full responsibility for the protection and security of your data throughout the entire repair. Take care of the security of your data during laptop, computer, and monoblock repair and cleaning. We offer reliable solutions for safeguarding your information during all types of technical services.

Why Trust Us with Your Custom Computer Repair?

Practical experience with custom desktop PCs of varying complexity — from gaming builds to professional workstations
Accurate hardware and software diagnostics using professional measurement and testing equipment
We work with gaming, office, engineering, and high-performance configurations built with your chosen components
Component-level motherboard repair, power circuit restoration, and resolution of complex hardware faults
Warranty on completed work and installed components
Clear repair timelines and transparent pricing with no hidden fees

Why do clients choose our service?

Reliable computer repair guarantee

We are so confident in the quality of our service that we offer a guarantee on all work carried out. The warranty period depends on the type and complexity of the repair and the equipment. Our warranty only covers the work that has been carried out, which allows us to ensure a high level of responsibility and reliability. If you have any problems after the repair, we will deal with them immediately. Our guarantee is your peace of mind and confidence in the reliability of our work.

We strive to ensure that our customers in Tallinn receive the best computer repair service. By choosing us, you are choosing quality, efficiency, customer focus and a reliable warranty.

Customer orientation

We value each customer and offer an individual approach to each order. We have bonus schemes and discounts for regular customers, making our services even more profitable.

The ability to call a specialist to your home or office allows you to save time and receive quality service on site. Free parking and easy access to the workshop make it convenient for you to visit us. We have also created an accessible infrastructure for customers with disabilities so that everyone can use our services without barriers.

Fast and efficient computer repair

We understand the importance of getting your equipment back up and running quickly. Our engineers carry out repairs within a day, minimising downtime and getting you back to work quickly.

Our in-house stock and established supply chains with suppliers ensure we have access to all the parts you need, speeding up the repair process. We pride ourselves on our responsiveness and always strive to get your equipment repaired as quickly as possible.

Get your computer repaired to the highest standards

We offer high quality computer repair services in Tallinn. Our specialists with more than 20 years of experience guarantee professionalism and reliability. We use only professional equipment, which ensures the accuracy and durability of the work performed. Conveniently located workshop allows our craftsmen to work efficiently and with high quality, providing customers with excellent results. When you trust us, you get reliable repairs that extend the life of your equipment.

What other services we provide?

Software installation

We repair computers of all popular brands:

Frequently Asked Questions About Custom Computer Repair in Tallinn

When does a custom PC need diagnostics if it still powers on?

If a desktop computer built with your own components starts up but behaves нестably — slower boot times, performance drops in games or professional software, overheating, unexpected restarts, or a Blue Screen of Death (BSOD) — diagnostics should not be delayed.

What are the most common issues in custom desktop PCs?

The most frequent problems include CPU or GPU overheating, SSD (SATA / NVMe) wear, unstable power supply operation, and RAM errors. In overclocked systems, instability may result from incorrect BIOS / UEFI settings or voltage misconfiguration.

What types of repair do you perform on custom computers?

We conduct full diagnostics of all key components: motherboard, power circuits, CPU, GPU, SSD / HDD, RAM, and PSU. We replace and upgrade components, perform component-level motherboard repairs, and restore damaged ports and interfaces.

How long does custom PC repair take?

Initial diagnostics are typically completed the same day. Repair time depends on the nature of the issue and availability of specific components. In most cases, component replacement or restoration takes from one to several business days. If a rare part is required, the timeline is agreed upon in advance.

What determines the cost of custom computer repair in Tallinn?

Pricing depends on the complexity of the issue, the type of configuration, and the scope of required work. Storage replacement or preventive maintenance is generally faster and more affordable than motherboard restoration or power circuit repair.

Do you provide warranty on repairs and replaced components?

Yes, warranty coverage applies to both completed work and installed components. This includes hardware repair and software system restoration, ensuring reliable performance after service.

Can I upgrade or repair my custom PC myself?

Without proper experience and tools, there is a risk of damaging the CPU socket, motherboard traces, or GPU power components. This is especially critical in tightly packed systems or builds with liquid cooling. Professional diagnostics often prevent additional damage and unnecessary expenses.

Is preventive maintenance necessary for a custom PC?

Even if the system operates normally, it is recommended to clean the cooling system, check thermal paste condition, and inspect storage health every 12–24 months. This is particularly important for gaming builds and workstations that operate daily under heavy load. Regular maintenance reduces the risk of unexpected failures and extends component lifespan.

Is remote Windows support available for custom PCs?

If the system boots and has an active internet connection, remote diagnostics and Windows configuration are possible. This allows many software-related issues to be resolved without visiting the service center and minimizes downtime for work or gaming systems.