Key Facts
- Client: Allianz Headquarters, Croydon
- Sector: Commercial Office
- Project: Full LED lighting replacement with motion sensors and ceiling tile upgrade
- Duration: Completed within standard office hours
- Scope:
- Replacement of 1,000+ outdated light fittings with energy-efficient LEDs
- Installation of 62 high-quality motion sensors across floors
- Replacement of ceiling tiles with acoustic and thermal insulated tiles throughout
- Energy Savings: Reduction from 155,000 kWh per annum to 57,000 kWh per annum
- CO₂ Reduction: Significant reduction in emissions through energy-efficient lighting
- Lux Levels: Increased from 200lux to 350lux
Design
The project involved a full re-design of the lighting layout to provide consistent, high-quality illumination suitable for a modern office environment. Key design considerations included, out-of-hours and weekend work options available (40–60% additional cost).
- LED Technology:
- Solid-state design, 50,000 hours / 17 years in office use
- 4000k daylight equivalent
- Uniform light distribution across office floors and individual workspaces
- Ceiling Integration:
- Existing ceiling grids reused where possible
- Replacement of all ceiling tiles with acoustic and thermal insulated tiles throughout
- Motion Sensors:
- Motion sensors configured to avoid constant switching on/off, maintaining staff comfort
- Reduction in energy consumption
- Lux Enhancement:
- Existing 200lux levels upgraded to 350lux
- More even distribution reduces eye strain and enhances productivity
- Retrofit Challenges:
- Many existing fittings were non-standard sizes, requiring bespoke replacement
- New design created a linear and uniform light spread while utilising existing wiring
Results
The LED upgrade and ceiling replacement delivered significant operational, environmental, and financial benefits. Our design and installation gave our client more flexibility in managing energy consumption in post covid flexible working contracts across all floors.
- Energy Efficiency: Annual energy consumption reduced from 155,000 kWh to 57,000 kWh
- Cost Savings: Cumulative savings over 20 years exceed £80,000
- CO₂ Reduction: Significant reduction in carbon emissions
- Improved Workplace Environment:
- Consistent lighting levels improve comfort and productivity
- Silent and flicker-free LED lighting enhances office experience
- Longevity: LED fittings expected to last 17–21 years, compared to 5 years for previous lighting
The project demonstrates the long-term benefits of investing in LED technology for commercial office environments, combining sustainability, comfort, and cost-effectiveness.
Testimonial
“From the beginning and throughout our project (new lights and ceiling tiles for an 8 storey buiding), CIS were more than helpful, considerate of our needs and extremely flexible. They were competitively priced, provided the most comprehensive information at quote stage (giving us a great sense of trust) and were always at the end of the phone to answer questions and provide assistance. We changed our original request for one floor half way through the project and they worked on a re-design with no qualms, explaining everything throughout and advising on the best solutions.
Our employees have given very positive feedback on completion of works, the majority saying that the new lights and ceilings are brilliant, making everything much brighter and cleaner, as well as how grateful they are that we no longer have “flickering fluorescent tubes”, resolving headaches and creating a much better working environment, almost like natural daylight on a continual basis. The motion sensors / timers that CIS recommended and installed will of course help the environment and our pockets!
I wouldn’t hesitate to recommend CIS and very much appreciated their professional, friendly approach to all aspects of our project, which was completed on time. They were the perfect suppliers – why don’t you see what they can do for you?”
-Elaine Stone
Executive Assistant to Tim Tozer, CEO, UK & Ireland
Allianz Assistance UK is part of the Allianz Group, a leading financial services provider specializing in travel insurance, roadside assistance, car warranty, and personal services. With over 130 years of experience, Allianz Assistance UK serves 92 million customers worldwide and is recognized as the UK’s largest travel insurance provider.
