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Manufacturing Equipment Insurance (UK): Construction & Engineering Cover Explained
Introduction
If your business relies on machinery to produce goods, equipment failure isn’t just an inconvenience—it can stop revenue overnight. For UK manufacturers, the risk is rarely “one thing”: it can be accidental damage, electrical failure, operator error, theft, fire, flood, or a breakdown that triggers missed deadlines and contractual penalties.
That’s why manufacturing equipment insurance is often built from a mix of covers—most commonly engineering insurance (to protect the machinery itself) and construction/engineering project covers (to protect equipment while it’s being installed, moved, commissioned, or used on site).
This guide explains how manufacturing equipment insurance works in the UK, what to insure, common exclusions, and how to build a policy that actually pays out when you need it.
What is manufacturing equipment insurance?
Manufacturing equipment insurance is a practical umbrella term for insurance that protects:
- Machinery and plant (CNC machines, presses, moulding machines, conveyors, robotics, compressors)
- Electrical and electronic equipment (control panels, PLCs, drives, sensors)
- Production lines and ancillary equipment (packaging lines, chillers, extraction systems)
- Mobile plant used around a site (forklifts, telehandlers, MEWPs—often insured separately)
- Tools and specialist equipment (often under tools/plant or contractors’ plant)
In practice, most manufacturers arrange this through a combination of:
- Machinery Breakdown / Engineering Breakdown
- Electronic Equipment insurance
- Contractors’ Plant & Tools (where relevant)
- Contract Works / Erection All Risks (EAR) for installation and commissioning
- Business Interruption (BI) to protect profit and fixed costs if production stops
Why manufacturers need engineering and construction-style cover
Manufacturing equipment faces different risks depending on where it is in its lifecycle:
- In use (day-to-day production): breakdown, electrical failure, mechanical failure, accidental damage, operator error.
- During movement or relocation: lifting, loading, transport damage, impact damage.
- During installation/commissioning: incorrect installation, design defects, testing failures, commissioning faults.
- During maintenance or modification: hot works, isolation failures, incorrect parts, calibration issues.
Standard property insurance may cover fire and some accidental damage, but it often won’t cover the internal failure of machinery. That’s where engineering insurance is essential.
Core cover 1: Machinery Breakdown (Engineering Breakdown)
What it typically covers
Machinery Breakdown insurance is designed to cover sudden and unforeseen physical damage to insured plant and machinery, including many causes of internal failure.
Common insured events include:
- Mechanical breakdown (bearings, shafts, gears)
- Electrical breakdown (motor burn-out, short circuits)
- Pressure plant failure (boilers, air receivers—subject to inspection requirements)
- Operator error leading to damage
- Failure of lubrication or cooling systems
What it pays for
Depending on the wording, it may cover:
- Repair or replacement of damaged parts
- Labour and specialist call-out costs
- Expediting expenses (overtime, express shipping) if selected
- Debris removal (sometimes limited)
Key exclusions to watch
Machinery Breakdown policies often exclude or restrict:
- Wear and tear, gradual deterioration, corrosion
- Poor maintenance or known defects
- Consumables (belts, filters) unless damaged by an insured event
- Damage limited to a “faulty part” (some wordings only pay for resultant damage)
- Losses caused by software issues or cyber events (unless specifically included)
Core cover 2: Electronic Equipment insurance
Modern manufacturing is increasingly automated. If your production depends on control systems, you may need Electronic Equipment cover for:
- PLCs, HMIs, SCADA systems
- Drives and inverters
- Test and measurement equipment
- Servers and on-premise IT supporting production
This cover can be critical where the biggest cost isn’t a broken gear—it’s a failed control board that takes weeks to source.
Core cover 3: Business Interruption for equipment failure
Repairing a machine is one cost. The bigger cost is often the downtime.
Business Interruption (BI) can cover:
- Loss of gross profit
- Increased cost of working (e.g., outsourcing production, temporary equipment hire)
- Fixed costs and wages (depending on basis of cover)
The big BI question: what triggers the cover?
Make sure BI is triggered by the same events that can stop production.
- If BI only follows fire/flood, it may not respond to a mechanical breakdown.
- Many manufacturers need Machinery Breakdown BI (sometimes called “MLOP” or “Machinery Loss of Profits”).
Indemnity period
Choose an indemnity period that matches reality. If a key machine has a 16-week lead time on parts, a 3-month indemnity period may be too short.
Construction & engineering insurance: when manufacturing equipment becomes a “project risk”
If you’re installing a new production line, relocating machinery, or commissioning equipment, you’re in project territory.
Two common covers are:
- Contract Works (for construction projects)
- Erection All Risks (EAR) (for installation of plant and machinery)
Erection All Risks (EAR): what it is
EAR is designed for projects involving:
- Installation of machinery and plant
- Assembly and erection
- Testing and commissioning
It can cover physical loss or damage during:
- Offloading and positioning
- Erection/installation
- Testing and commissioning
- Sometimes maintenance periods (if selected)
What to check in an EAR policy
- Project value and sums insured (including materials, labour, and equipment)
- Testing and commissioning period included
- Defects cover options (see below)
- Hired-in plant and tools (if not insured elsewhere)
- Transit cover (if equipment is moved from another site)
Defects cover: LEG, DE, and why it matters
Project policies often include defects exclusions. The difference between wordings can be huge.
Common approaches include:
- Resultant damage only: the policy won’t pay to fix the defective part, but may pay for damage caused by it.
- DE (Design Exclusion): excludes loss from design defects, but can be broader or narrower depending on wording.
- LEG clauses (LEG 1/2/3): widely used in engineering and construction. In simple terms:
- LEG 1 is generally the most restrictive
- LEG 3 is generally the broadest
You don’t need to memorise clause numbers—but you should ask your broker to explain, in plain English, what happens if a defect is discovered during commissioning.
Contractors’ Plant & Tools (and hired-in equipment)
Many manufacturers use mobile plant and hired-in equipment for maintenance shutdowns and site work.
Plant cover can insure:
- Owned plant (forklifts, telehandlers, MEWPs, small excavators)
- Hired-in plant (subject to hire agreements)
- Tools and portable equipment
Key points:
- Confirm cover applies on your premises and off-site (if you use contractors or multiple locations)
- Check theft conditions (locked compounds, alarms, immobilisers)
- Make sure hired-in plant cover matches your contractual liability
Common claims scenarios (and how the right cover responds)
1) CNC spindle failure stops production
- Machinery Breakdown can cover repair/replacement.
- Machinery BI can cover lost profit and outsourcing costs.
2) Fire damages a production line
- Property insurance covers fire damage.
- BI covers loss of gross profit.
- Engineering cover may still be relevant for specialist repair costs.
3) New line damaged during commissioning
- EAR can cover damage during testing.
- Defects wording determines whether defective parts are covered.
4) Theft of tools and portable equipment
- Plant & Tools cover responds if security conditions are met.
What information insurers usually need
To quote accurately (and avoid problems at claim time), expect to provide:
- Equipment schedule (make/model/age/replacement value)
- Maintenance regime (PPM schedules, service contracts)
- Critical spares strategy and lead times
- Site protections (fire detection, sprinklers, security)
- Electrical testing and inspection records
- Any prior losses and breakdown history
- For projects: method statements, lifting plans, contractor details, commissioning plan
How to reduce premiums (without gutting cover)
Insurers price manufacturing equipment risk based on likelihood and severity of loss. Practical improvements can help:
- Documented planned maintenance and condition monitoring
- Thermographic surveys and electrical inspections
- Critical spares on site for long-lead items
- Clear isolation/LOTO procedures and training
- Fire risk management (hot works permits, housekeeping, extraction maintenance)
- Security upgrades for portable plant and tools
- Business continuity planning (alternative suppliers, outsourcing options)
Choosing sums insured: replacement cost vs market value
For equipment, underinsurance is common.
- Replacement cost reflects what it would cost to buy new (or equivalent) today.
- Market value may be much lower, but can leave you short after a loss.
For BI, make sure the gross profit figure and indemnity period reflect your real exposure.
Quick checklist: building a sensible manufacturing equipment programme
- Machinery Breakdown (including electrical and mechanical)
- Electronic Equipment cover for control systems
- Machinery Loss of Profits / BI extension
- EAR/Contract Works for installation and commissioning projects
- Plant, tools, and hired-in equipment cover
- Transit cover if machinery is moved between sites
- Clear policy conditions you can actually meet (maintenance, inspections, security)
Final thoughts
Manufacturing equipment insurance isn’t one policy—it’s a set of covers that should match how your machinery is used, moved, installed and maintained. If you’re investing in new plant or relying on a small number of critical machines, it’s worth building the programme around the worst-case scenario: a major breakdown with a long lead time on parts.
If you want, tell me what you manufacture, your key machines (and whether you’re installing or relocating any equipment this year), and I’ll suggest a clean, insurer-friendly structure and the key details to include in your equipment schedule.