Ethos contract initially covers 23 stores across south east England, where the company will recycle at least 80% of the sites construction waste. Site waste will be segregated at its West Drayton plant.
The partnership is part of M&Ss £200 million eco plan, Plan A, in which M&S pledges to stop sending waste to landfill within five years.
As part of the contract, concrete will be crushed and reused as aggregate or ballast. Plastic, metal and cardboard will be recycled for use in industry, while wood and paper fibres will power the National Grid. Any remaining waste, which is expected to be mainly soil, will be used to construct golf courses.
Ethos managing director John Irvine (pictured) commented: As the only independently audited major UK waste management company to recycle over 80% of our intake month-on-month, we share the environmental commitments M&S outlined when it launched Plan A earlier this year.
M&S director of store design development and procurement Richard Gillies said: We know that developing better ways of working across our existing business is essential if we are to meet our Plan A targets - none more so than in our store construction and development programme.
Tackling waste from the programme that will see a further 35% of our stores remodelled by the end of 2007 is a big step towards our 2012 goal of sending no waste to landfill.