Property Insurance for High‑Tech Manufacturing Facilities: A Practical UK Guide

Why high‑tech sites need a different approach

High‑tech manufacturing sites (electronics, medical devices, precision engineering, robotics, advanced materials) carry property risks that don’t look like a standard warehouse. Your biggest exposures often sit in the details: cleanroom integrity, power quality, temperature and humidity control, specialist machinery, and long lead times for replacement parts.

A good property policy should do more than “cover the building”. It should be built around how your facility actually operates—what would stop production, what would contaminate product, and what would take months to replace.

What “property insurance” usually covers

Most commercial property policies are built from a few core sections. The right mix depends on whether you own the premises, lease it, or operate across multiple sites.

• Buildings (if you own them): the structure, fixed plant, fitted services, and often external areas.
• Contents: office contents, tools, furniture, IT equipment.
• Plant and machinery: production equipment, test rigs, calibration equipment, compressors, pumps, ovens, CNC machines, pick‑and‑place lines, etc.
• Stock and materials: raw materials, work‑in‑progress (WIP), finished goods.
• Goods in transit (optional): components and finished products moving between sites or to customers.
• Business interruption (often added): loss of gross profit and extra costs after an insured event.

The key is how the policy defines each category and what it excludes.

The risks that hit high‑tech facilities hardest

Fire and smoke damage

Fire is still the number one cause of major property losses. For high‑tech sites, smoke and soot can be as damaging as flames—especially where you have sensitive electronics, optics, or sterile production.

Water and escape of water

A small leak can shut down a clean area, damage control panels, or contaminate materials. If you rely on chilled water systems, humidifiers, or specialist cooling, water damage can be both direct (physical) and indirect (downtime).

Flood and surface water

Many UK industrial estates have flood exposures that aren’t obvious until you look at local drainage and surface water history. Flood can also take out access roads and utilities, even if your building stays dry.

Theft and malicious damage

High‑value components, copper, specialist tools, and portable test equipment are attractive targets. Security standards, alarm signalling, and physical barriers can materially affect cover and pricing.

Power quality and utility interruption

Voltage spikes, brownouts and outages can damage drives, PLCs, servers, and sensitive test equipment. Even when equipment survives, a power event can ruin WIP or cause batch failures.

Equipment breakdown

This is a major gap in many basic property policies. Mechanical or electrical breakdown can be excluded unless you add a dedicated engineering / machinery breakdown section.

Contamination and cleanroom integrity

For cleanrooms and controlled environments, the “loss” may be contamination rather than visible damage. Insurers will want to understand filtration, gowning, pressure differentials, cleaning regimes, and how you validate the environment.

Cleanrooms, labs and controlled environments: what to check

If you operate cleanrooms, labs, or temperature‑controlled production, pay close attention to:

• Definition of damage: does the policy respond to contamination following an insured event?
• Decontamination and reinstatement costs: specialist cleaning, validation, re‑certification.
• HVAC and filtration: are these treated as part of the building, plant, or both?
• Critical spares: filters, fans, drives, sensors—can you source them quickly?
• Re‑qualification time: how long to bring the room back into spec and sign it off?

Business interruption should reflect the time it takes not only to repair, but to re‑validate.

Specialist equipment: replacement cost vs market value

High‑tech equipment often has long lead times and high installation costs. Make sure your policy basis is right:

• Reinstatement / replacement as new: usually best for modern equipment.
• Indemnity / market value: may underpay if equipment is older but still critical.
• Installation and commissioning: include rigging, foundations, calibration, software configuration, and acceptance testing.
• Freight and customs: if equipment is sourced overseas.

If you have bespoke machinery, consider whether “like for like” is realistic or whether you’ll need an upgraded equivalent.

Stock, WIP and finished goods: the tricky part

For many manufacturers, the biggest number on the schedule isn’t the building—it’s stock and WIP.

• Peak season and contract spikes: set sums insured to match your maximum exposure, not your average.
• Stock valuation basis: raw materials at cost, WIP at cost plus labour/overheads, finished goods at selling price or cost depending on policy.
• Temperature‑sensitive materials: adhesives, resins, chemicals, batteries—check deterioration clauses.
• High‑value small items: microchips, sensors, medical components—ensure theft limits are adequate.

Business interruption: where many claims succeed or fail

Business interruption (BI) is what keeps the business alive after a major incident. For high‑tech manufacturing, BI needs careful thought.

Choose the right indemnity period

A 12‑month indemnity period can be too short if you have:

• Long lead times for equipment
• Cleanroom re‑certification
• Customer re‑approval of product
• Regulatory sign‑off

Many high‑tech sites consider 18–24 months depending on supply chain and validation.

Get the gross profit calculation right

BI is based on your accounting definitions. Work with your broker and accountant to ensure the policy matches how you report turnover, variable costs, and gross profit.

Consider “increased cost of working”

This can cover extra spend to keep production going—outsourcing, temporary premises, expedited shipping, overtime, temporary equipment hire—so long as it reduces the overall BI loss.

Common add‑ons worth considering

Depending on your operation, you may want to add:

• Machinery breakdown / engineering (mechanical and electrical breakdown)
• Deterioration of stock (especially for temperature‑controlled goods)
• Computer / electronic equipment (servers, specialist test equipment)
• Cyber insurance (for ransomware and operational disruption)
• Terrorism cover (often arranged separately in the UK)
• Goods in transit and marine cargo
• Employers’ liability and public/products liability (often packaged separately)

A “commercial combined” policy can bring these together, but the wording still matters.

Key exclusions and limitations to watch

Property policies can look similar on the surface but behave very differently in a claim. Common pain points include:

• Wear and tear / gradual deterioration
• Faulty workmanship or defective design
• Mechanical breakdown (unless added)
• Pollution and contamination (often limited)
• Unoccupied premises conditions
• Security warranties (alarm set, locks used, CCTV operating)
• Hot works conditions (permits, fire watch)
• Flood exclusions or high excesses

Ask for these to be explained in plain English before you buy.

Setting the right sums insured (and avoiding underinsurance)

Underinsurance can reduce claims payments through “average” clauses. High‑tech facilities are especially exposed because costs are not obvious.

• Buildings: include professional fees, demolition, debris removal, and inflation.
• Plant and machinery: include installation, commissioning, software, and specialist contractors.
• Stock/WIP: model worst‑case peaks.
• BI: base on realistic downtime, not optimistic repair times.

A formal reinstatement cost assessment can be a strong investment for larger sites.

Risk management that can reduce claims (and premiums)

Insurers price risk based on prevention and resilience. Improvements that often help:

• Automatic fire detection and appropriate suppression (and maintenance records)
• Hot works permit system and contractor controls
• Segregation of flammables and battery charging areas
• Good housekeeping and dust control
• Water leak detection and isolation valves
• Resilient power: UPS, surge protection, generator testing
• Physical security: monitored alarms, access control, perimeter protection
• Documented maintenance and asset registers
• Critical spares strategy and supplier agreements

Even small upgrades can make a difference if they reduce the likelihood of a large loss.

Claims readiness: what to have in place before something happens

When a major incident happens, speed matters. Prepare:

• Asset register with values and serial numbers
• Photos of key areas and equipment
• Copies of maintenance certificates and inspection logs
• Cleanroom validation records (where relevant)
• Disaster recovery plan and supplier contacts
• A clear internal incident process (who calls whom)

This can shorten the claim cycle and reduce downtime.

How to choose the right policy (a quick checklist)

Before you commit, make sure you can answer:

1. What would stop production tomorrow?
2. What assets have the longest replacement lead time?
3. What would cause product contamination or batch failure?
4. How long to repair, re‑validate, and resume normal output?
5. Are your sums insured based on peak exposures?
6. Are breakdown, utilities, and BI properly covered?

If any of these are unclear, it’s worth reviewing the wording and schedule with a specialist broker.

Talk to Insure24 about high‑tech property insurance

If you run a high‑tech manufacturing facility and want a practical review of your property and business interruption cover, Insure24 can help you sense‑check your sums insured, highlight common gaps, and arrange cover that fits how your site operates.

Call 0330 127 2333 or visit insure24.co.uk to discuss your facility, your equipment, and the level of protection you need.