Grade One


Established in 1995 by Chairman, Jim Corrigan, Grade One have built and maintained a reputation for providing quality, professional and cost effective cleaning and support services in the South East and City of London. As a family operated business based in Kent, with a team of dedicated staff, we have the capability to provide a full range of support services including, daily cleaning, window cleaning, washroom services and additional specialised services as part of a simple, managed package to create clean environments to suit the individual needs of your business.

Grade One are uniquely positioned to offer a highly personal approach from contract management onwards; where we treat each contract as if it’s our only contract, ensuring that our clients only receive exceptional levels of service delivery. In a highly competitive industry we have kept to what we do best – we deliver what we promise and we care for our clients. We are confident in our approach and believe that working collaboratively with our clients allows us to adapt and enhance the service we provide to continuously meet your needs and create pristine working environments.

Grade One’s primary philosophy is to provide our clients with a cost effective and efficient service that exceeds industry standards. To achieve our philosophy we focus on three core areas: Performance, Partnership and Added Value. For us it isn’t just about how clean the floors and windows are, it is much more than that. It’s about ensuring that our customers can rely on us to work with them to align our shared goals and values.

By selecting Grade One as your chosen cleaning contractor you can be confident that you working space will be maintained to world class standards.


Our Head Office is located at Chatham House in Kent giving our Executive and Managerial teams quick and convenient access to Kent and the City of London.

  • Chatham House
    14 New Road
    ME4 4QR

    T: 01634 828544