Our Happy Customers

As a leading provider of contract cleaning services throughout the UK and Ireland since 1997, GSA is proud to partner with some of the UK’s best-known brands across retail, distribution and corporate office sectors. 

GSA offers a tailored, adaptable and highly-responsive service to our blue-chip client base.  Our professional and consistent approach has delivered exceptional client retention, and the opportunity for us to work with leading brands including Marks & Spencer, Next, Selfridges, Dunnes, Moto, Dixons, TK Maxx, Carphone Warehouse and Matalan.


  • Matalan
  • Dixon