Mainstream Irrigation are experts in the design, installation and maintenance of watering systems and work on both commercial and residential projects. Based in West Sussex the majority of clients are in London and the South East, but recently we have travelled as far afield as Montenegro & Portugal when our expertise has been called for. The systems we work on are as diverse as small courtyard gardens in Kensington and the gardens of Regents Park, tropical indoor gardens in Cheshire and the wide open spaces of Goodwood.