Cheshire based cleaners Johnson Service Group are closing 100 stores as part of a restructuring that will cost the company almost £24 million.
Johnson has already closed more than 50 outlets in recent years as it battled tough conditions on the high street.
The group said a typical store has one full-time and two part-time employees, while there will also be cut-backs in back office and warehousing staff, suggesting that at least 300 jobs will go in total by the end of 2012.
None of the locations earmarked for closure have been revealed but they are understood to be mainly outside London and south-east England.
We believe that the measures we have taken will refocus the group into a more streamlined and profitable business."We have confidence that our continuing dry cleaning estate will not only be able to withstand the current retail environment but make a telling contribution to the group's future performance."
More top news
Rain on the way this week. Here's the latest forecast
A medic has walked free from court after he ran over and killed a father-of-four who had been punched into the road by a 16-year-old boy.
Coleen Nolan has revealed that her sister Linda has been diagnosed with secondary cancer.