How to Build Your Own PC Online in the UK (2026): Step-by-Step Guide

Want to build your own PC but worried you'll pick the wrong parts, or that you'll have to assemble it yourself with a screwdriver? You don't. In 2026 the easiest way to build a custom PC in the UK is to configure it online — you choose the parts, and we hand-build, stress-test and deliver it to your door. This guide walks you through exactly how it works, step by step.

What "build your own PC" really means in 2026

There are two ways to build your own PC:

  • DIY assembly — you buy every component separately and put it together yourself. Cheaper on paper, but a single mistake can damage parts, and you get no single warranty covering the whole machine.
  • Configure online & we build it — you use a PC builder / configurator to choose your processor, graphics card, memory and storage. We assemble it, test it for 24 hours, and ship it ready to use with one warranty covering everything.

For most people the second option is the smarter choice: you still build your own PC — every part is your decision — but you skip the risk, the testing rigs and the troubleshooting. If you'd rather choose a finished spec, see our custom-built vs pre-built comparison.

Step-by-step: build your own PC online with our configurator

1. Pick your platform

Start by choosing the processor family that fits your budget and goals. Each one opens its own online configurator:

2. Choose your graphics card

The GPU is the single biggest factor in gaming performance. Inside the configurator you can pick anything from an efficient entry card up to an RTX 5090 or RX 9070 XT. Not sure which to choose? Our GPU comparison guides pit the popular cards head-to-head.

3. Set your memory and storage

Add the RAM (8GB up to 192GB DDR5) and the NVMe SSD capacity you need. You can start small and we'll build it so you can upgrade later.

4. Place your order — then we build it

Once you've configured your build, you check out and we get to work. Every PC is hand-assembled in the UK from 100% brand-new parts, cable-managed, and stress-tested before it's allowed to leave. Here's exactly how we build your PC.

How do I choose the right parts?

If you're new to this, balance is everything — there's no point pairing a top GPU with a weak CPU. Two guides make it simple:

How much does it cost to build your own PC?

Our custom builds start from around £1,062 and scale up to high-end 4K machines. Every build is priced £100 below our eBay listing, and you can spread the cost — we offer monthly payments with Klarna and Clearpay. Want a head start? Browse current gaming PC deals or the full custom-built gaming PC range.

Why build your own PC with us

  • 3-year warranty on every machine, covering the whole PC.
  • Free next-day UK delivery, fully tracked.
  • Built & stress-tested in the UK from brand-new parts — family-owned since 2022.
  • 4.9★ from 97+ reviews — real customers, real builds.

FAQ

Do I have to assemble the PC myself?

No. You choose the parts online; we do all the building, cable management and testing. It arrives ready to plug in and switch on.

Is it cheaper to build your own PC?

Buying loose parts can look cheaper, but you lose the single warranty, the testing, and the support. Our configured builds are keenly priced (£100 below eBay) and come fully covered — usually the better overall value once you factor in the risk.

Can I upgrade it later?

Yes. We build on standard, upgrade-friendly platforms so you can add RAM, storage or a new GPU down the line.

Ready to start? Open the custom PC builder and build your own PC online in a few minutes — or see our top custom builds for 2026 for inspiration.

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