Published: January 9, 2026
Delivering Specialist Temporary Chiller Solution at One of London’s Big Four Headquarters
At one of London’s oldest and most prestigious banking headquarters, maintaining comfort and optimal climate control is mission-critical. When a severe cooling system failure threatened daily operations, ICS Cool Energy was called in to deliver a bespoke solution that safeguarded ongoing operations demonstrating both technical expertise and rapid response.
Challenge
During the height of a busy summer, the client’s landmark building experienced a critical failure in two of its main water-cooled chillers. This posed an immediate risk to the continuity of daily business at a site known not just for its historical significance, but also for its role in the financial sector.
Building infrastructure presented further difficulties. Access to the chillers was confined to two basement lifts: one a standard goods lift, the other a vehicle lift capable of taking a skip lorry below ground. There were also greater technical demands: a significant factor was the building’s chilled water system, which operated at 9.2 bar, considerably higher than what standard chilled water applications run at.
Other chiller hire providers approached for the project, explored air-cooled solutions that relied on external equipment and generators, leading to potential complications with local council regulations and logistical headaches. Alongside these technical and logistical hurdles lay considerable financial risk related with that offering. A temporary generator-driven solution could easily have incurred fuel costs running into seven figures, all without guaranteeing optimal comfort for building occupants.
Solution
ICS Cool Energy addressed the challenge with a consultative, engineering-led mindset. The team identified that a temporary water-cooled chiller solution could be installed entirely within the constraints of the basement, interfacing with the high-pressure system and existing infrastructure.
Seven RTSF100 water-cooled chillers were installed in the basement and linked via nearly 90 metres of custom 8-inch stainless steel pipework and bespoke headers, designed to withstand the unusually high system pressure. This internal installation eliminated the need for external equipment and generators, preserving lift access and avoiding potential regulatory obstacles.
Specialist contractors supported the hard-wiring and electrical work to ensure that the new chillers were reliably powered from within the premises, removing the reliance on costly external fuel sources.
Throughout the process, ICS Cool Energy paid close attention to acoustics and operational disruption, confirming through sound level testing that the new equipment operated more quietly than existing systems.
Results
ICS Cool Energy’s intervention allowed uninterrupted cooling during a period of vulnerability, supporting the bank’s daily operations while safeguarding their valuable assets and data. The project’s technical precision and practical approach reinforced ICS Cool Energy’s reputation as specialists in demanding and sensitive environments.
Crucially, the bespoke solution operated seamlessly for nearly twelve months, well beyond the original three-to-four month expectation, giving the client valuable time to redesign and replace their permanent system. The intervention not only supported the bank’s daily operations, but also demonstrated how engineering expertise and careful project management can deliver critical solutions in a highly regulated, logistically complex setting.
Featured Product Categories
Chiller hire London
For businesses in London, our low-footprint, high-performance packaged chillers for hire are the perfect process cooling solution. Our specialist team understands the logistics needed in London to handle the transport and installation of our units. From canal boat deliveries to flat packing chillers for narrow staircases, we’ve seen it all and done it all before. Our rapid same-day delivery and 24/7 support mean chiller hire in London has never been more convenient and fast to ensure your process keeps running. Our extensive selection of over 500MW of chillers readily available for rapid deployment allows us to cater to your specific cooling needs. Whether you require compact 3kW units or powerful 1.4MW chillers, we have a wide range. Our chiller hire units can provide liquid leaving temperatures ranging from +15°C to -40°C, all conveniently provided by a single packaged unit. These units are protected in purpose-built transport frames, making them easy to install and customise according to your exact requirements. The exclusive i-Chiller range is designed with integrated pumps, buffer tanks, multiple compressors, and refrigeration circuits to ensure cooling redundancy. Additionally, we offer flanged, camlock, and Bauer hoses for rapid onsite installation in any situation. The unique immersed coil-in-tank design of our i-Chillers enables robust and reliable temperature control, making them ideal for critical process applications. Since 1989, we have been providing chiller hire services in the UK for process manufacturing applications. Our team of technical specialists has extensive experience and can support projects of any size, ranging from short-term to up to 9 years. <b>Chiller hire for manufacturing</b><b> </b>Our i-Chiller range is specifically designed for manufacturing applications. Each unit comes with a unique evaporator immersed within a generously sized storage tank. Standard 3-bar pumps are included (customizable up to a 5-bar pump) to handle demanding industrial applications. <b>Modern & efficient chillers</b><b> </b>We take pride in offering modern and efficient chillers. Our chiller hire fleet, on average, is less than 1.5 years old, ensuring reliability and up-to-date equipment for your business. Our engineers prioritise energy efficiency, helping to reduce your energy costs. Additionally, we can explore free cooling solutions that could lead to further savings. If you require chiller hire in London, please reach out to our local team who will assist you with the logistics and provide the most reliable and efficient solution for your business.
Emergency chiller hire
Whether your emergency is for a critical operation, manufacturing process or HVAC requirement our emergency <a href="/chiller/chiller-hire/">chiller hire</a> will minimise downtime to keep your operation cool. We stock more than 500MW of rental chillers for next day delivery with emergency chiller hire ranging from 3kW to 1.4MW and water leaving temperatures of +15°C to -40°C. In an emergency, you need a fast and expert service. Our nationwide team of specialist engineers can survey your site and arrange same day delivery and when emergencies happen out of hours we can still deliver, install and commission 24/7 every day of the year to keep your operation running. Since 1989 we have responded to emergency chiller rental needs across all industrial, manufacturing and HVAC applications. We understand downtime is critical and costly and will work with you to provide the best solution for your business in the fastest possible time. <strong>Why choose us for emergency chiller hire?</strong> Whether you need equipment quickly to cover a breakdown, require additional kit to cover periods of high ambient temperature or increased demand – we can support your project with contract terms to suit you. With chillers available for immediate hire, we can survey your site and arrange delivery of equipment the same day. With our 24/7 operation, we can deliver, install and commission out of hours too – minimising your downtime and disruption to your operation.
Temporary chiller hire
We are the UK's experts in temporary chiller hire for all process and comfort applications. Whether your temporary need is for seasonal demand or you are expanding, upgrading, modifying, replacing, maintaining or even relocating, we can help keep your critical operation running. We stock more than 500MW of temporary chillers to rent for next day delivery from 3kW to 1.4MW and water leaving temperatures of +15°C to -40°C. The installation of a temporary <a href="/chiller/chiller-hire/">chiller hire</a> needs to be safe, quick and effective. Our packaged i-Chillers are protected in transport frames for ease of transport and install, have low footprints with integrated components and can be quickly and safely installed with flanged, camlock or Bauer hoses for all onsite situations. For temporary chiller hire needs from just weeks to over 9 years we have experience of installing temporary chillers since 1989. Working with you, our team of technical specialists engineers will provide the best solution for your business. <strong>Why use us as your temporary chiller hire partner?</strong> On average, our chiller units are less than 1.5 years old, ensuring reliability and modern equipment for your business. We use the latest technology and all of our chiller units meet EcoDesign compliance. We also offer Dry Air Coolers alongside our chiller units to deliver Free Cooling and partial Free Cooling – reducing your energy consumption and costs when the ambient temperature drops. Following an initial on-site survey, your dedicated engineer will specify a solution to meet your exact needs. Delivery, installation and commissioning of your equipment will be arranged and carried out. We will take care of the full project for you and can also provide ongoing remote monitoring of your chillers too, so you can rest assured that they continue working efficiently and you’re well supported for 24/7 technical back-up.