Why UK Manufacturers Are Outsourcing PLC Work in 2026
How the UK engineering capacity shortage is driving manufacturers to specialist controls partnerships rather than permanent hires.
MASK Control Systems Engineering Team
UK Turnkey Automation & Controls Specialists
If your operations or engineering team has spent the past six months trying to recruit a PLC programmer, you already know how the story tends to end. The role stays open. The shortlist is thin. The candidates who do apply are either too junior for a live production environment or already fielding three other offers.
You are not imagining it, and your hiring process is not the problem. The UK has a genuine, measurable engineering capacity shortage, and a growing share of manufacturers are responding the same way: they are outsourcing the controls work rather than trying to staff it permanently.
This article sets out why that shift is happening, what the industry data actually shows, and how a partnership model compares to an in-house hire for the kind of work that keeps a high-speed production line running.
The skills gap is real, and the numbers confirm it
The shortage is not anecdotal. Across recent UK industry surveys, the picture is consistent and difficult to ignore:
PLC programming sits directly at the intersection of those final two figures. It is a niche, safety-critical skill set. You cannot post a generic job advert and expect a queue of qualified controls engineers by the end of the week, and the candidates who are qualified know exactly how scarce they are.
Why the shortage is structural, not temporary
It would be easier if this were a passing dip in the labour market. It is not. Several long-term forces are converging at once:
1Accelerating Engineer Retirements
Experienced controls engineers are retiring faster than the trade is replacing them. The generation that learned ladder logic on the factory floor is leaving, and apprenticeship pipelines have not scaled to match the pace at which UK factories are automating.
2Platform Depth Demands Specialized Mastery
A capable engineer fluent in Siemens TIA Portal is not automatically fluent in Mitsubishi GX Works or Unitronics UniStream. Each ecosystem has its own development environment, fieldbus conventions, and quirks. Hiring one engineer rarely provides coverage across the mixed platforms a plant actually runs on.
3Modern Production Lines Need Far More Than Just Code
A single automation project routinely involves PLC programming, control panel design and build, systems integration with legacy machinery, HMI/SCADA development, and ongoing support when a midnight breakdown occurs. Expecting one permanent hire to cover all of that reliably is unrealistic for most SME manufacturers.
What manufacturers are doing instead
Rather than waiting for the labour market to correct itself, manufacturers are changing how they source controls engineering. The same surveys that quantify the shortage also show how the sector is adapting:
of UK manufacturers are directly increasing automation investment to mitigate staffing shortages.
report that capacity shortfalls have sped up their roadmap toward Industry 4.0 and cloud telemetry.
In practical terms, that means bringing in a specialist engineering partner for the controls work itself, rather than absorbing recruitment risk, high salary overheads, and the single-point-of-failure exposure of depending on one in-house engineer who could hand in their notice at any moment.
In-house hire versus outsourced partner: an honest comparison
A permanent hire still makes sense for some operations, particularly high-volume manufacturing campuses with a steady, year-round controls workload. But for most UK manufacturing operations, the economics and risk profile increasingly favour an outsourced partner model.
| Factor | Permanent In-House Hire | Specialist Outsourced Partner |
|---|---|---|
| Time to Capability | 3 to 6 months recruitment cycle (if candidate is found) | Immediate access to pre-vetted, established engineering capacity |
| Platform Depth | Typically confined to 1 or 2 platforms (e.g., Siemens only) | Multi-platform fluency (Siemens, Mitsubishi, Unitronics, Allen-Bradley) |
| Cost Flexibility | Fixed full-time salary overhead regardless of quarterly workload | Demand-flexed: full project design now, lighter support later |
| Knowledge Continuity | Critical risk: system knowledge walks away if engineer resigns | Persistent EPLAN CAD drawings, documented logic, and firm records |
| Breakdown Response | Zero cover when engineer is on annual leave or off sick | 24/7 on-call SLA emergency breakdown & remote telemetry triage |
None of this means abandoning your internal team. The most effective operational model treats an external partner as an extension of in-house engineering: your team retains plant ownership and priorities, while the partner supplies specialist controls capacity on demand.
What good looks like in an outsourcing partner
If you decide to outsource, the partner you choose matters as much as the decision itself. The shortlist should be judged on a few clear criteria:
Look for commissioned industrial installations with named clients across demanding sectors, not stock photography or hypothetical capability lists.
Vendor independence is critical. A partner tied to a single OEM cannot give you objective advice on what your production line actually needs.
ISO 9001, ISO 17020, and ISO 17025 signal that quality, testing, and safety processes are controlled, auditable, and regulated.
The relationship must not end at handover. On-site commissioning, remote telemetry, operator training, and 24/7 breakdown support separate true partners from one-off contractors.
Where MASK Control Systems Fits
MASK Control Systems Ltd has been delivering turnkey industrial automation and controls engineering across the UK since 2013. We were built for precisely the challenge this article describes: providing the specialist controls capacity that manufacturers can no longer reliably recruit in-house.
Our scope spans turnkey PLC programming, custom control panel design and manufacturing, systems integration, HMI/SCADA development, cloud telemetry, and 24/7 emergency breakdown support.
We are tri-certified in ISO 9001, ISO 17020, and ISO 17025, and have delivered mission-critical systems for organisations including Alstom, Babcock, the UK Ministry of Defence, Emirates, Etihad, Hydro, Varitas Marine, and leading UK universities.
If recruitment is not working, there is a clear alternative
You do not need to win the hiring market to keep your production lines running and capital projects on schedule. If your team is stretched, your last controls hire fell through, or you simply want to stop carrying that risk on the shoulders of one individual, an outsourced engineering partnership is a proven and increasingly mainstream answer.
Discuss your automation project with MASK
We are happy to scope your machinery or control panel requirements and outline clear delivery milestones.
Industry Sources & References:
MyWorkwear UK Manufacturing Skills Gap Report 2025; Make UK Industrial Strategy Skills Commission Report 2025; Institution of Engineering and Technology (IET) 2025 UK Engineering and Technology Skills Survey; Office for National Statistics (ONS) Labour Market Data.