Canary Wharf
Case Study

Canary Wharf

30 Aug 2023
Share on

How our internal drainage experts solved an ongoing issue that was seriously disrupting the headquarters of a FTSE 100 financial services firm.

The global headquarters of a major investment bank. This landmark tower is 156m tall, with 32 storeys and almost 1.7 million sq. ft. of floor space.

The problem:

Repeated internal blockages across multiple floors and stacks, leading to system shutdowns, flooding and 4+ call-outs every week.

Detailed investigation and phased solutions


Our surveying team created a detailed internal schematic, enhancing existing plans

We heat-mapped incidents in real time as they occurred to identify problem areas

We laboratory tested water samples from across the building to diagnose the issues on a chemical level

We interviewed surveyors to understand the building’s design capabilities


Our initial findings suggested three key issues:

  1. The system was designed for 60% of the current capacity
  2. Overcapacity was compounded by hard water scale issues
  3. There were several crowded floors that accounted for a disproportionate share of call-outs

We therefore pilot-tested small dosing units on each floor, free of charge to the client


Our dosing unit trial was launched for a three month period

Our engineers gathered data throughout this period to monitor our approach

At the same time, we initiated a rigorous clean of the internal infrastructure, using state-of-the-art mechanical coring equipment

The final phase was to bring the building onto a biannual planned maintenance program

Dramatic reduction in reactive costs

  • 3 month reduction in call-outs on 3 problematic floors
  • 12 month reduction in reactive spend across the whole site

The initial pilot trial, which took place on 3 highly-problematic floors, showed a 74% reduction in reactive issues, with only 5 call-outs in the 3 months following the dosing implementation, versus 19 in the previous quarter.

In the 12 months following our implementation, we saw a building-wide reduction in reactive spend of nearly 70%, which we estimate represents an annual saving of in excess of £60,000

We have since continued to implement our robust PPM regime, carrying out extensive internal cleaning using Picote’s MaxiMiller coring equipment, and reactive callouts remain at consistently lower levels

Share on
If you would like to know more about the solutions Metcor provides, please get in touch with us today.
Please call our national 24/7 customer service desk for all urgent enquiries.
Get in touch with us via email and one of our team will come back to you shortly.