Window Cleaning by Principle Cleaning Services


Founded in 1989, Principle Cleaning Services has grown organically into a £54m+ business, employing over 2200 people. Its core values of valuing its people, delivering a great quality service and pioneering innovation and technology flow through every aspect of the business.

The window cleaning division was set up in 2013 with a team of four and now employs 75 full-time experts including IRATA-trained abseilers, a five-strong management team with a manager devoted to rope access activities, a technical lead, aswell as full-time safety and administrative support.

The team are amongst the best and most highly trained in the industry and bring huge commitment and a wealth of experience to our window cleaning operations, which includes some of the most complex vertical cleaning in London. In addition to our abseilers, we use a variety of equipment including reach and wash systems, ropes, MEWPS, cradles and BMUs.

Company Profile

Principle Cleaning Services provides cleaning, window cleaning and waste management services to some of London’s most famous, iconic, landmarks and many high-profile brands. Principle Windows is the company’s professional window cleaning division with its own team of vertical cleaning specialists and abseilers who scale the heights of some of London’s tallest buildings.

Company Contact 020 8341 4718

44 AWARDS 2020

Principle Windows continues to develop bespoke, real-time reporting through Google platforms and BMU drop-marking and fabric reporting.

Planning is meticulous: our vertical cleaning specialists will use an app to check weather and wind speeds days in advance so they can plan tasks, schedule safely and effectively and keep clients up to date. Anemometers are used to check wind speed and work will be postponed if winds are too high or if the temperature is forecast to be too cold.

The window cleaning team are IT literate and record and report in real- time using our cloud-based systems. They provide equipment checks and sign off on their mobile phones, taking pictures as they need, to send to our ‘OnePrinciple’ portal.

Cleaning at height using specialist equipment is also a regular feature of Principle’s work as well as minor maintenance tasks including gutter cleaning and repairs, and the installation of pest control netting.

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