Most buying decisions start in the same place. A drawing and a bill of materials go out to three or four suppliers, the quotes come back, and the lowest unit price gets a tick. It feels like a sensible way to choose.
It is also how a lot of OEMs end up disappointed.
The cheapest quote often hides the highest total cost. Late deliveries, poor yields and boards that fail in the field rarely show up on the first invoice, but they show up. By the time they do, switching supplier feels harder than living with the problem.
Over the years, the same conversations come up again and again with engineers, product developers and procurement teams. When you strip them back, the same five questions appear. Price is on the list, but it is almost never first.
Here are the five things OEMs tell us they want, why each one matters, and what good looks like from a UK electronics manufacturer.
It starts with a misconception about price
Price matters. No procurement team has an unlimited budget, and unit cost has to stand up to scrutiny.
The trap is treating it as the first filter rather than one factor among several. A saving that looks good on the quote can turn into a far bigger cost once delays, rework and field failures are counted. A run of faulty boards can damage your reputation with your own customers, and that takes years to rebuild.
The better question is not “who is cheapest” but “who can I rely on”. That shift, from supplier to partner, is what sits behind all five of the asks below.
1: Do not punish us for improving the design
The first ask is about NRE, and it causes more frustration than almost anything else.
NRE, or non-recurring engineering, is the one-off cost of setting up production for a new product. It covers programming the pick-and-place machines, creating solder stencils, configuring inspection profiles and building test fixtures. That is all it is. NRE is a setup cost. It is never a fee for fixing a design problem.
Most contract manufacturers pass these charges on. The trouble starts when every small change triggers another one. Need to swap an end-of-life component or make a tiny improvement? That can mean a fresh NRE charge. So OEMs put off changes they know they should make.
It also locks you in. Bringing in a second supplier, or moving your work elsewhere, means paying NRE all over again. That cost keeps many businesses tied to a single manufacturer, carrying all the risk of having every egg in one basket.
This is where DSL CEM is different. With no setup fees and no switching penalties, you can update your design freely and add a second source without a cost penalty.
2: Let us prove you before we commit
The second ask follows naturally. Trying a new manufacturer usually carries a real cost, so businesses stay put even when they are unhappy.
A sample run removes that barrier. It lets you check build quality before you commit any volume, and it gives you confidence in yield and reliability before money is on the table. It also produces accurate unit costs, because the build times have been tested for real rather than estimated.
There is a lead-time benefit too. When the setup, programming and supplier relationships are sorted in advance, your first proper production run moves faster.
Example: a start-up about to commit to its first batch can validate the quality of the boards first, rather than gambling a whole production run on an unknown.
3: Stand behind the build for years, not months
The third ask is about reliability, and it carries real weight for any UK electronics manufacturer serving demanding sectors.
Across the industry, the standard manufacturer warranty is twelve months. For products that sit in the field for years, in defence, medical or industrial settings, that is a short window. A board that fails after the warranty ends means costly repairs, unhappy customers and, in some cases, penalties for missing service agreements.
A longer warranty does two things. It gives you peace of mind that the build will last. It also lets you offer your own customers a longer guarantee without taking on the financial gap between what you promise them and what you are covered for yourself.
DSL backs every PCBA with a five year warranty rather than twelve months. That is not a marketing line. It reflects a process, from sourcing through to inspection, built to catch problems before boards ever leave the building.
Example: an OEM can pass a five year guarantee on to its end customer, winning on terms, without absorbing the risk itself.
4: Catch the design problems before they cost us
The fourth ask is about avoiding expensive surprises. A prototype that fails because of a flaw baked into the design wastes money twice: once on the failed build, and again on the weeks lost waiting for a second run.
A proper design review before production catches the issues that matter:
- Components that are obsolete or heading end of life, which cause long delays and price premiums later
- Layout choices that make boards hard to assemble, inspect or test reliably, which hurt yield and push up cost
- Opportunities to simplify the design and bring the unit cost down
An early redesign can sometimes force you to repeat certification such as CE or UKCA, which is slow and expensive. Spotting the problem first avoids all of that.
This is part of a wider shift. OEMs increasingly expect a manufacturer to act as an engineering partner, not just a pair of hands. A Design Health Check gives you a second set of expert eyes before you spend a penny on a prototype.
5: Match supply to our cash flow, not just our order
The fifth ask is one people often struggle to put into words, partly because the industry describes it in jargon. “Flexible call-offs” can sound unclear. In plain terms it means this: your full order is built and held in stock, then released to you in batches as you need them, and you only pay when you call each batch off.
That solves a real dilemma. Order a large batch and your unit cost drops, but your cash is tied up and you need somewhere to store it all. Order small batches and you protect your cash flow, but the unit cost climbs. Flexible delivery gives you the low unit cost of a big order without the upfront hit.
It protects your lead times as well. Components can be slow and unpredictable. Average lead times have eased from over fifty weeks at their 2022 peak to roughly sixteen to twenty-four weeks in early 2026, but some parts remain tight, with memory in particular constrained throughout 2026. If your stock is already built and ready for next-day call-off, those swings stop catching you out.
Why these five needs point to UK production
Look at the five needs together and a pattern emerges. None of them is really about price. They are about cost over time, risk and reliability.
That is also why so many businesses are bringing work back to Britain. Reshoring is no longer about sentiment or a PR opportunity. It is about control: shorter lead times, a supply chain you can see, and direct access to the people building your product. When your manufacturer is down the road rather than across an ocean, communication is quicker and problems get solved sooner.
Meeting all the above five needs is far easier with a partner that offers proximity, genuine engineering depth and a track record to match. DSL has been manufacturing electronics in Letchworth Garden City for over 35 years, holds ISO 9001 certification and carries the Made in Britain mark. Every board is built, inspected with 3D AOI and tested under one roof.
So when you next compare quotes, look past the unit price. Weigh up the whole picture across the life of the product. The cheapest line on the page rarely tells the real story, and the right partner saves you far more than the wrong one ever appears to.
FAQ
What is NRE in PCB assembly?
NRE, or non-recurring engineering, is the one-off cost of setting up production: programming machines, making stencils, configuring inspection and building test fixtures. It is a setup cost, not a charge for fixing design problems.
Is a twelve month warranty normal for electronics manufacturing?
Yes. Twelve months is the industry standard, which is exactly why a longer warranty, such as five years, is a meaningful point of difference.
Will changing my design trigger another NRE charge?
With most manufacturers it can, which discourages useful improvements. A manufacturer that does not charge NRE lets you update your design without a penalty each time.
What does a Design Health Check actually review?
It checks for components heading end of life, layout choices that make boards hard to build, inspect or test, and ways to reduce your unit cost, all before you commit to a prototype.
What does a flexible call-off arrangement mean?
Your full order is built and held in stock, then released and paid for in batches as you need them. This keeps your unit cost low while protecting your cash flow and your lead times.
