With late May in 2026 seeing record-breaking temperatures, emergency office cooling hire in London is essential to many buildings and businesses, especially at this time. As was the case with a large high-rise office building close to the Canary Wharf area who contacted us at HVAC Rentals to help implement emergency office cooling hire.
Although the building already had some cooling supplied via the existing HVAC system, unfortunately, the system was struggling to keep up with demand. This was due to the extreme external temperatures, combined with significant solar gain through the sealed floor-to-ceiling glazing, resulting in uncomfortable temperatures within the office, with the afternoon becoming unbearable for staff.
Is it normal for office buildings to overheat?
While many commercial office buildings within London and across the UK are designed and equipped to cool efficiently and effectively, a prolonged heatwave can still place significant additional demand on the buildings’ HVAC infrastructure.
Many systems are originally designed around more typical UK summer temperatures and weather. However, according to the Met Office, extreme heat events across the UK are expected to become increasingly frequent, with temperatures above 30°C projected to occur far more regularly in the coming decades. Â
With this in mind, whilst many modern buildings are designed with additional cooling capacity in reserve, it is still common for even well-equipped office environments to require supplementary temporary cooling during periods of extreme heat — particularly within heavily glazed buildings, open-plan offices and high-occupancy commercial spaces. Temporary office cooling hire can be essential not only for helping ensure cooling capacity is met during heatwaves, but also for preserving and protecting existing HVAC systems.
Office Cooling Hire in London - The challenges our client faced and best cooling solution
As our client’s office was a fairly large open plan space, also with large windows which would not open, they required emergency cooling hire for the office without venting the hot air. Therefore, the HVAC Rentals experts identified the best solution being our no-vent portable cooling units. Â
Furthermore, the client required temporary cooling hire as soon as possible, which as HVAC Rentals specialise in emergency office cooling hire, our team was able to ensure swift delivery within just hours to the office. As the powerful portable cooling units are easily monouvreable, multiple units were delivered on-site quickly, with their tactile design allowing for very easy transport, set-up and positioning.
The Hire period for Office Cooling Hire
Our client initially opted for a minimum two-week office cooling hire period, with the flexibility to extend the temporary cooling hire if required depending on the duration of the heatwave conditions.
The no-vent portable cooling units provided an effective and practical temporary cooling solution for the office, helping to improve comfort levels for employees during periods of elevated temperatures while supporting the building’s existing HVAC infrastructure during peak cooling demand.
You can view more information about the No Vent Cooling Unit here.Â
Benefits of the No Vent cooling units when needing emergency office cooling hire
- Fast and easy set-up – requiring just to be filled up with water, and plugged into a standard UK plug socket.Â
- Ideal for offices without windows – many high-rise London offices require powerful air con without a hose/vent for venting hot air, as windows may be sealed or have a limited opening. In this scenario, a powerful cooling unit such as the HVAC Rentals No Vent cooling unit is ideal for temporary office cooling hire.
- Low power consumption
- Powerful cooling fan – with 3 settings for low, medium or high cooling
- Requires little maintenance
- Completely portable, featuring strong and sturdy castor wheels for easy positioning (and fairly lightweight when the water tank is empty).
- Modern cooling technology built for commercial applications
- Effective supplementary cooling during periods of extreme heat
Safe Emergency Office Cooling Hire – PAT Tested & Approved
At HVAC Rentals Ltd, we ensure all temporary cooling hire equipment is fully tested, inspected and operational prior to every hire period. All portable cooling units are PAT tested and prepared by our team before delivery to site.
Emergency Office Cooling Hire Across London & The UK
At HVAC Rentals Ltd, we continue to support commercial offices, facilities management companies and workplaces across London and the UK with rapid-response emergency office cooling hire and temporary cooling solutions during periods of elevated temperatures and HVAC demand.
Whether supporting existing building cooling systems during heatwaves, assisting with localised overheating issues or providing temporary cooling for commercial office environments with sealed glazing, our team can help deliver practical and effective cooling solutions quickly and efficiently.
From portable air conditioning hire through to no-vent cooling solutions for high-rise offices and open-plan commercial spaces, here at HVAC Rentals we specialise in fast, flexible and reliable temporary cooling hire tailored to the requirements of each site.
If you require temporary cooling for your office get in touch with our experts here.Â
