Protecting charity premises during a heatwave: how to prevent theft and keep property secure

13 August, 2026

Charities

When temperatures rise, most charities and not-for-profit organisations focus on keeping staff, volunteers and visitors comfortable.

However, hot weather can also increase security risks. Open windows, propped-open doors and increased outdoor activity can make charity premises more vulnerable to opportunistic theft.

Police forces across the UK regularly warn that warm weather can create opportunities for criminals looking for easy targets. For charities, the consequences can be significant. The loss of laptops, fundraising equipment, tools or mobile devices can create unexpected costs, disrupt operations and divert resources away from supporting beneficiaries.

Heatwave security checklist for charities

Before exploring the risks in more detail, consider these practical steps:

Monitor entrances when doors are left open
Use window locks and restrictors where possible
Keep laptops, phones and payment devices out of sight
Secure outdoor equipment at the end of each day
Control access to keys, fobs and alarm codes
Restrict access to staff-only areas during events
Include basic security awareness in volunteer training

Why heatwaves can increase the risk of theft

When buildings become uncomfortably warm, doors and windows are often opened to improve ventilation. While this can help keep premises cool, it can also weaken building security.

Many thefts happen because an opportunity presents itself rather than part of a planned burglary. An unlocked door, accessible window or unattended reception area may be all that is needed to attract a thief. By maintaining good premises security during periods of hot weather, charities can reduce the likelihood of becoming an easy target.

Keeping buildings secure while staying cool

Community buildings, charity shops and offices often rely on open doors during warmer weather. However, open access can make it harder to monitor who is entering and leaving the premises.

Charity shops may be particularly vulnerable during hot weather because doors are often left open to attract customers and improve ventilation. Where practical, a staff member or volunteer should remain near public entrances, particularly during busy periods. This can help stop theft, improve visitor management and make suspicious behaviour easier to identify.

Alternative cooling measures such as fans, air conditioning and controlled ventilation can also reduce the need to leave external doors open for extended periods.

Open windows need careful thought

Windows are one of the simplest ways to cool a building during a heatwave, but they can also create security vulnerabilities.

The Metropolitan Police recommends fitting window locks and restrictors to help prevent unauthorised access while still allowing ventilation. These measures are particularly important for ground-floor offices, community centres and properties located on busy streets.

Adding window checks to opening and closing procedures can also help prevent simple mistakes that may leave a building exposed overnight.

Keep valuable equipment out of sight

Modern charities rely heavily on technology, including laptops, tablets, mobile phones and card payment devices. Unfortunately, these items are often among the most attractive targets for thieves.

Equipment visible through windows or left unattended can draw unwanted attention. Keeping valuable assets out of sight and locking them away when not in use can significantly reduce risk and help avoid costly replacements.

This is a simple but effective element of both property protection and burglary prevention.

Insurance insight

Charities should take time to review their insurance documents and understand any conditions that apply to theft-related losses. Cover for portable electronic equipment, unexplained losses, or thefts where there is no evidence of forcible entry may be limited in some policies.

Understanding these requirements can help organisations make informed decisions about how equipment is stored and protected, particularly during hot weather when doors and windows may be opened more frequently.

Don't overlook outdoor areas

The summer months often bring outdoor fundraising events, gardening projects and community activities. As a result, valuable equipment may spend more time outside or in temporary storage areas.

Tools, bicycles, maintenance equipment and event supplies can be easy targets because they are portable and often expensive to replace. Securing outdoor items when not in use and keeping storage areas locked can help prevent losses and improve overall premises security.

How volunteers can support security

Volunteers are often well placed to spot potential security issues, whether that is an unlocked door, unfamiliar visitor or equipment left outside.

Providing basic security guidance during volunteer inductions and encouraging concerns to be reported promptly can help create a security-conscious culture across the organisation. Small observations can prevent larger problems.

Secure keys and access devices

Physical keys are not the only assets that require protection. Access cards, electronic fobs, alarm codes and vehicle keys can all provide entry to valuable property and equipment.

Having a clear process for issuing, recording and returning access devices helps charities maintain control over who can enter buildings and restricted areas. This is particularly important where multiple staff members and volunteers require access.

Take extra care during events

Open days, fundraising activities and community events often increase footfall and create additional distractions for staff and volunteers.

During busy periods, office areas and storage rooms should remain locked where possible, with access limited to authorised personnel. Assigning responsibility for periodic security checks can help reduce risks without affecting the visitor experience.

Small actions make a big difference

Protecting charity property during a heatwave does not usually require major investment or complex security systems.

Simple measures such as monitoring open entrances, securing windows, controlling access devices and locking away valuable equipment can significantly reduce the risk of theft. Crime prevention guidance consistently shows that criminals often look for easy opportunities and are more likely to move on when a property appears well protected.

By maintaining good building security throughout periods of hot weather, charities can better protect their assets, reduce disruption and continue focusing resources on delivering vital services to the people who depend on them.