Custom loops, built to cool hard-working hardware without the fan noise.
We design and hand-build water-cooled PCs around your exact components — hardline tubing, machined fittings, and loops engineered for the thermal load you actually generate.




Two ways to get there
Ground-up custom builds, or a conversion of the machine you already own. Either way, the loop is designed around your hardware — not the other way round.
Built from the ground up
We spec the case, components and loop together, so nothing gets forced into a chassis it doesn't fit. You get a machine designed as one system, not parts bolted around a cooler.
- SCOPE Component selection, loop layout, cable routing, final assembly
- TIME Typically 3–5 weeks depending on parts lead time
- FOR Gaming rigs, workstations, content creation machines
Air-to-water conversion
Already have a system you like? In most cases we can convert it to a full custom loop — subject to case clearance and component compatibility, confirmed at consultation.
- SCOPE Compatibility check, block/radiator fit, full loop rebuild
- TIME Typically 1–2 weeks
- FOR Existing rigs hitting thermal or noise limits
Every joint checked twice
Millimetre-accurate hardline bends, cable runs dressed by hand, and fittings torqued and re-checked before any system goes on the bench for testing. Nothing ships until it's held pressure and temperature for 48 hours straight.
From consultation to delivery
Five stages, the same for every build regardless of size or budget.
Consult
We talk through your hardware, use case, budget and the look you're after.
Design
Loop layout, component list and case fit are mapped out and agreed with you.
Build
Tubing is bent, blocks fitted, cables dressed — all on the bench, by hand.
Test
48 hours of leak checks and thermal load testing before it goes anywhere.
Deliver
Collection or UK courier, packaged the way it left the bench.
What clients say
A few words from recent builds. Read all reviews
The build has surpassed my expectations; it is super-fast, incredibly powerful and almost entirely silent. I'm a very satisfied customer.
It's obvious that Water-cooling Design is a business that enjoys the builds as much as the customers that end up with them.
The performance is incredible, it runs his games beautifully, and he's amazed at how quiet it is. Serious bragging rights for a 13 year-old!
Tell us what you're running, and what you want from it.
Consultations are free and don't commit you to anything. We'll tell you honestly if a full custom loop makes sense for your setup.
Book a consultation