In short, we use more electricity in winter. Winter electrical safety is particularly important for commercial premises because electrical systems are often working harder at exactly the time environmental conditions are at their worst. Cold temperatures, moisture, reduced daylight and increased occupancy during peak trading periods all place additional strain on electrical installations. Without the right precautions, minor issues can quickly develop into faults that disrupt operations or compromise safety.
For facilities managers and business owners, winter is a sensible point in the year to reassess how electrical systems are being used and whether they remain suitable for current demand. Temporary heaters, festive lighting, extended working hours and reduced maintenance access can all affect risk levels if not managed carefully.
In this post, we’ll list four winter electrical safety tips to make sure that extra demand doesn’t become extra risk for your business.
If, as above, you do need to plug in some extra lighting or heating appliances, make sure you do it safely. Firstly, that means avoiding the use of extension cords and multi-socket adapters wherever possible.
These items aren’t as good at coping with high-demand appliances like portable heaters. They’re also dangerous because they increase the risk of sockets (and circuits) being overloaded. That’s when the power demanded from an electrical outlet exceeds what it can handle, causing overheating and fires.
If you must use extension cords, because of unsuitable socket locations, make sure you’re not using them excessively with lots of appliances plugged in at once.
Overloading is one of the most common winter electrical safety issues identified in commercial inspections. Heating appliances draw significant current, particularly when used continuously, and many are not designed to be run from temporary power solutions. Even where no immediate issue is visible, repeated overloading can accelerate wear on cabling and protective devices.
Businesses should also be mindful of how demand builds up gradually over winter. What starts as one heater in an office can quickly turn into several across a building, pushing circuits beyond their intended capacity without anyone realising.
Related: Office Electrical Safety Checklist for UK Businesses in 2026
Ideally, commercial sites should be routinely inspected for electrical safety. However, if that’s not something you’ve kept up with, now is the time to make amends.
Having your electrical installation inspected will ensure it’s ready for the extra demand of winter. An electric installation condition report (EICR) will check every component of your fixed wiring system, flagging any issues that require repairs or replacement.
PAT testing is also a good base to cover, ensuring that the appliances themselves are safe to use.
Winter electrical safety inspections are particularly valuable because they highlight weaknesses before systems are pushed to their limits. Faults that may remain unnoticed during warmer months can become more serious when heating loads increase and operating hours extend.
An inspection also provides documented evidence that reasonable steps have been taken to manage electrical risk. This can be important for insurance, compliance audits and demonstrating duty of care if an incident occurs during winter operations.
We can’t talk about winter without addressing the big festive elephant in the room – Christmas! Whether it’s just the bank holidays or an extended holiday period, most businesses have some time when their office, warehouse or shop is out of use.
But while you’re at home with your mulled wine, electricity will still be flowing through the wires at your commercial property. As such, it’s important to switch off and unplug as many appliances as you can. That includes most things other than fridges and freezers, which need to stay on.
Reducing electrical load during shutdown periods is a simple but effective winter electrical safety measure. Equipment left energised unnecessarily increases fire risk, particularly when buildings are unoccupied and issues may go unnoticed for days.
Businesses should also consider whether lighting timers, external signage or seasonal displays are programmed appropriately. Ensuring systems return to normal operation safely when staff return is just as important as switching them off.
It doesn’t take an electrical expert to tell you that electricity and water don’t mix. In winter, when rainfall can be heavier and more frequent, it’s vital that your property isn’t letting water seep in.
Water can and will affect your electrical installation or appliances – whether that’s tripping the system or causing serious damage. So, if you spot any leaks, be sure to have them seen to immediately.
Moisture related faults are a recurring winter electrical safety concern, particularly in older buildings or sites with roof penetrations, external lighting or plant rooms. Even minor ingress can compromise insulation, increase corrosion and lead to unexpected failures.
Staff should be encouraged to report signs such as damp patches, persistent condensation near electrical equipment or repeated circuit tripping. These are warning signs that should always be investigated by a qualified professional.
At Volta Compliance, we aim to take the guesswork out of winter electrical safety. Alongside our simple tips, we provide reliable electrical maintenance services that will ensure your site is winter-ready.
Taking a structured approach to winter electrical safety reduces the likelihood of disruption, protects people and supports compliance. Regular inspections, sensible use of equipment and prompt attention to defects all contribute to safer winter operations.
Whether it’s some much-needed repairs or a comprehensive inspection of your site’s electrical installation, our qualified, experienced team is on hand to help throughout Yorkshire. Get a quote today by calling 0113 436 0402 or emailing info@voltacompliance.com.
