Press Release

23 December 2025

Tech Tidings: Mitie’s Carolling Cobots Serenade Commuters at London Bridge station

  • Mitie’s cleaning robots ‘cobots’ spread Christmas cheer at London Bridge station performing carols to the thousands of commuters travelling home for Christmas
  • The cobots raised money to donate to Crisis at Christmas, helping the charity provide essential support services to the homeless
  • The sustainable cleaning robots are fully electric, recycle water as they clean, and can clean an area of 6,763,237m every day, around the size of 948 football pitches

It’s not often that you see a group of singing robots on your commute but passengers at London Bridge station were treated to a one-off performance by Mitie’s “carolling cobots”, as thousands travelled home for Christmas.

The sustainable cleaning cobots, which are part of the second largest fleet of autonomous cleaning robots in the UK, took a break from their cleaning duties to surprise and delight passers-by.

Thanks to the generous donations from commuters, the robot carollers raised money for Crisis at Christmas, which provides support to those experiencing homelessness.

The cobots, which range in size from smaller bots resembling Disney’s Wall-E through to larger outdoor sweepers, help Mitie colleagues keep busy sites in pristine conditions as they independently carry out tasks such as mopping, vacuuming, and dusting. The fully electric cobots provide three hours of cleaning for every charge and recycle water as they clean, requiring just 15 litres of water a day to clean an area of 6,763,237m or around the size of 948 football pitches. The autonomous cobots can map out routes to avoid obstacles and passers-by, even remembering to return to an unfinished task once re-charged.

Heather Downes, Head of Innovation and Product Design, Mitie, said: “We are always looking for creative ways to use technology to benefit the communities we serve. Transforming our cleaning robots into carolling cobots, was a unique way of bringing a little extra joy to commuters travelling home for Christmas.

“Our cobots provide essential cleaning support at some of the busiest sites across the UK. They not only help us to continue to deliver sustainable cleaning, but this festive period they helped raise money for Crisis at Christmas. A wonderful example of how technology, sustainability, and community spirit can come together to make a difference.”

The carolling cobots are part of a UK wide cleaning taskforce who support Mitie’s cleaning and hygiene specialists taking care of sites up and down the country. These include The Shard, Heathrow Airport, Liverpool One Shopping Centre, Trinity Leeds Shopping Centre, Bluewater Shopping Centre, Euston Station and St Pancras Station.


Notes to editors

The 6,763,237m figure shows the size of the area Mitie’s entire fleet can cover over a two-month period

About Mitie: The Future of High Performing Places

Founded in 1987, Mitie employs 84,000 colleagues and is the leading technology-led Facilities Management, Transformation and Compliance company in the UK. We are a trusted partner to around 3,000 customers across the public and private sectors, working with them to transform their built estates, and the lived experience for their colleagues and customers, as well as providing data-driven insights to inform better decision-making.

In each of our core services of engineering (hard services) and security and hygiene (soft services) we hold market leadership positions. We also deliver transformational projects in the areas of power and grid connections, building fit outs & modernisation, decarbonisation, fire safety & security and telecoms infrastructure, alongside compliance capabilities in fire safety & security and environmental services. Our sector expertise includes central government, critical national infrastructure, defence, financial services, healthcare & life sciences, local government & education, retail & logistics, manufacturing & media and transport & aviation.

We hold industry-leading ESG credentials, including a place on the CDP Climate change A List, and we have received multiple awards including Best Low Carbon Solution and Net Zero Carbon Strategy of the year. We have validated science-based targets that support our ambitions to reach Net Zero. We have been recognised as a UK Top Employer for the seventh consecutive year and Most Admired Company in the Support Services sector. We are also ranked 16th in the Top 100 Apprenticeship employers and ninth in the Inclusive Top 50 UK Employers list. Find out more at www.mitie.com