Burglar Alarms During a Power Cut –
Power cuts are uncommon, but they do happen.
Most businesses focus on the immediate inconvenience—computers shutting down, lighting going out or production stopping. However, one question is often overlooked:
How does a power outage affect your building’s security?
A professionally installed commercial burglar alarm is designed to continue operating if the mains electricity fails, but your overall security depends on far more than the alarm panel itself.
Use this checklist to see how prepared your business really is.
□ Do You Know How Your Alarm Operates During a Power Cut?
Commercial alarm systems contain backup batteries designed to keep the system operational for a period of time if the mains supply fails.
Ask yourself:
- When was the backup battery last replaced?
- Has it been tested recently?
- Would you know if it had reached the end of its service life?
□ Can Staff Still Secure the Building?
If a power cut occurs just before closing time:
- Can employees still lock up safely?
- Is there a clear closing procedure?
- Does everyone know what to do?
Written procedures can prevent confusion during unexpected situations.
□ Are External Access Points Still Protected?
Think about:
- Main entrances
- Rear service doors
- Roller shutters
- Fire exits
- Staff entrances
Security should remain consistent even when normal operations are disrupted.
□ Is Emergency Lighting Working Correctly?
While emergency lighting serves a different purpose from a burglar alarm, both contribute to building safety during a power outage.
Regular maintenance helps ensure emergency systems perform as intended.
□ Are Valuable Areas Properly Protected?
Identify the locations that would have the greatest impact on your business if targeted.
Examples include:
- Server rooms
- Stockrooms
- Tool stores
- Cash offices
- Archive rooms
These areas may warrant additional consideration within your overall security strategy.
□ Have You Planned for Out-of-Hours Failures?
Power cuts don’t always happen during business hours.
Consider:
- Who receives fault notifications?
- Who can attend the premises if required?
- Is there a documented contact list?
Preparation reduces uncertainty.
□ Has Your Business Changed?
If you’ve recently:
- Expanded your premises
- Installed new machinery
- Increased stock levels
- Added office space
…it may be worth reviewing whether your existing alarm design still reflects your current operation.
□ Are Maintenance Records Up to Date?
Routine servicing is about more than compliance.
It provides an opportunity to identify ageing batteries, worn components and developing faults before they become larger problems.
Keeping accurate maintenance records also makes future inspections much simpler.
Your Results
Mostly “Yes”
Your business appears to have considered both security and continuity planning.
Continue reviewing procedures regularly as your premises evolve.
A Mixture of Yes and No
There are opportunities to improve resilience by reviewing maintenance, documentation and operational procedures.
Mostly “No”
A power cut could expose gaps in your security planning.
Addressing those areas before an incident occurs is generally easier than responding to unexpected problems afterwards.
Security Planning Goes Beyond the Alarm
A commercial burglar alarm is an important part of protecting a business, but it works best when supported by sensible planning, regular maintenance and clearly defined procedures.
Power interruptions are only one example of an unexpected event that can test how well a business is prepared.
For businesses across Skipton, reviewing security as part of a wider business continuity plan helps ensure that premises, assets and operations remain protected—even when normal routines are interrupted.



