Winter site inspections: What to look for

Safety on site is essential, whatever the time of year. But during winter, there are extra hazards to be aware of.

Snow, ice, and freezing temperatures can make work more difficult, while shorter days and poor weather can reduce visibility.

With that in mind, scheduling a site inspection before the seasons change should be an important part of your winter preparation.

Don’t worry, keeping your site safe in winter doesn’t need to be complicated. Here’s a guide to help you carry out winter building site inspections effectively.

THE IMPORTANCE OF SITE INSPECTIONS IN WINTER

Regular site inspections and risk assessments should be carried out all year round. During winter, they become even more critical.

Additional hazards include:

• Ice
• Fog
• Snow
• Heavy rain
• Low temperatures
• Shorter daylight hours

Without identifying these seasonal risks and putting controls in place, your site could quickly become unsafe.

WHAT TO LOOK FOR IN A WINTER SITE INSPECTION

Here’s a winter checklist to help you keep your site safe throughout the colder months.

VISIBILITY

Shorter days and darker mornings and evenings mean visibility is a key concern.

Make sure you:

• Replace damaged bulbs in outdoor lighting
• Consider additional lighting, such as tower lights
• Reassess hi-vis clothing to ensure it meets the correct class for winter site safety and compliance with UK hi-vis regulations
• Make sure safety signage can be seen in low-light conditions where necessary (e.g. with illuminated or retroreflective signage)

HARSH WEATHER

Cold weather, rain, and ice increase the risk of slips, falls, and cold-related illnesses.

To reduce risk:

• Create warm break-out areas so staff can take breaks out of the cold
• Monitor the weather forecast to adjust work schedules during extreme conditions
• Implement anti-slip measures, such as anti-slip safety boots* and keep grit fully stocked
• Monitor workers for signs of cold stress, frostbite, or hypothermia and respond immediately
• Provide cold-weather PPE, including insulated hi-vis jackets, thermal gloves, and waterproof footwear

TOP TIP: Cold-weather PPE should support other controls and not replace them.

*Slip-resistant footwear can reduce the risk of slipping but cannot prevent slips entirely. Black ice and compacted ice may still be hazardous.

EMERGENCIES

Expect the unexpected in winter conditions. Prepare for emergencies so you can respond quickly.

Make sure that you:

• Keep first aid stations fully stocked
• Train workers on winter-specific emergency procedures
• Ensure all walkways, stairways, and access points are clear of ice and snow
• Update response plans for winter-specific scenarios, such as working in snow or icy conditions

WINTER SITE EQUIPMENT

Cold temperatures affect more than people; they can also impact machinery and equipment.

Cold can cause metals to reach their ductile-to-brittle transition temperature, increasing the risk of breaks or failure

You should always:

• Check batteries, vehicles, and machinery for issues caused by cold
• Regularly inspect and service all equipment to maintain safety and performance
• Swap to winter-grade oils and set fuel and hydraulic fluids to recommended levels

TOP TIP: Follow PUWER and LOLER guidance when inspecting and using site equipment.

COMMUNICATION

Inspections and controls only work if your team knows about them.

Ensure that you:

• Place visible signs and safety messages around your site for seasonal precautions
• Delegate tasks clearly - for example, who replenishes grit? Who monitors the weather forecast?
• Encourage open communication so workers can report unsafe conditions and provide feedback

Your Winter Preparation Starts Here

The best time to start your winter preparation is now (unless you’ve already started!).

Use our free risk assessment template to identify seasonal hazards and make sure your team and site are fully prepared.

At SMI, we offer everything you need to stay safe, from winter-specific PPE to winter products like grit and snow ploughs.

Why shop with SMI:

• 97% stock availability
• Maximum 3-hour response time
• 5PM order cut-off for next-day delivery

Not sure what you need? Get in touch with our friendly team!

FAQs

How cold is too cold to work outside?

In the UK, there’s no legal minimum temperature for working outdoors. However, employers are legally responsible for protecting staff from health and safety risks. That includes cold-related risks like cold stress, hypothermia, and frostbite.

What are the five P's of winter safety?

The 5 Ps of winter are:

1. Protect people
2. Protect pets
3. Protect plants
4. Protect pipes
5. Practice fire safety

How often should a construction site be inspected?

Construction sites should typically be inspected weekly or fortnightly.

However, the exact frequency will depend on factors like:

• The type of project
• The tasks and activities carried out
• Past accidents, incidents, and near misses