Efficient Cleaning Services Ltd are Commercial Window Cleaning specialists covering London & the south east UK. Established in 2000, we are vastly experienced in the use of: water fed poles, abseiling, mobile platform and ladder access to clean the windows on all commercial buildings. Efficient Cleaning Services Ltd are ISO 9001 (Quality), ISO14001 (Environmental) and ISO45001 (Health & Safety) certified, Safe Contractor approved as well as being corporate members of The British Institute of Cleaning Science and The Federation of Window Cleaners. Window Cleaning in London Specialists, Window Cleaners in London Specialists