Computer Upgrade Services in London – Fast, Affordable, Expert
Whether your system is slowing down or struggling to keep up with modern tasks, Computer Maintenance & Repairs offers professional computer upgrade services across London. From memory and storage upgrades to full component refreshes, we help improve the speed, stability, and overall performance of your desktop or custom PC.
Our Most Popular PC & Desktop Upgrades
RAM (Memory) Upgrades
Boost multitasking and application performance
SSD Upgrades
Replace slow HDDs with fast solid-state drives
CPU Upgrades
Install a faster processor for better performance
GPU Upgrades
Improve graphics performance for gaming and creative tasks
Power Supply Replacement
Upgrade to a higher wattage PSU if needed
Cooling System Upgrades
Fans, thermal paste, or liquid cooling options
Operating System Upgrade
Move to Windows 11 or reinstallation of current OS
BIOS & Firmware Updates
Ensures compatibility with new components
Systems We Upgrade
- Dell – XPS, OptiPlex, Precision Workstations
- HP – Omen, EliteDesk, Pavilion, Z Series
- Lenovo – ThinkCentre, Legion, IdeaCentre
- ASUS – ROG, TUF Gaming, VivoPC
- Acer – Aspire, Veriton, Predator Orion
- Apple – iMac, Mac Pro (Intel & Apple Silicon)
- Custom-built & gaming PCs – Intel & AMD Ryzen builds
Why Upgrade Instead of Replacing?
Upgrading your PC can save you hundreds compared to buying a new system. Our experienced engineers will evaluate your system and recommend targeted upgrades that make the biggest impact — without overloading your budget.
Transparent Pricing & Warranty
- Free visual inspection and performance analysis
- Upgrades quoted in advance – no surprise charges
- £10m Employers Liability Insurance
- All upgrade work backed by a 3-month labour warranty
- Diagnostic fee: £54
PC Upgrades: choose a service
Hard Drive & SSD UpgradeSpeed up your computer with a professional hard drive upgrade in London. SSD and HDD installation with data transfer…
Graphics Card UpgradeProfessional video card upgrades in London for gaming, design, and workstation PCs. NVIDIA and AMD GPU installation…
RAM UpgradeSpeed up your PC with a RAM upgrade in London. DDR3, DDR4, and DDR5 memory upgrades for desktops and workstations.…
Power Supply UpgradeNeed a new PSU? We provide expert power supply upgrades for gaming and custom PCs in London. Modular PSU installation…
Wi-Fi UpgradeUpgrade your PC with fast Wi-Fi 6 or 6E connectivity. Same-day wireless adapter installation services in London. Boost…
Talk to an engineer
Describe the problem and the make and model if you know it. We will reply with a price and the fastest way to get it fixed, usually the same working day.
020 7237 6805 London repair centreUnit 1, 80 Willow Walk, London SE1 5SY
Monday to Saturday, 9am–6pm
Ready to send it in? Book online and get your job number by email straight away.