B&Q reacted quickly to a positive Coronavirus test of a staff member, asking customers to immediately leave its store in Wallasey.
The store in the North West of England was closed on Tuesday afternoon for deep cleaning and reopened on Wednesday.
There was no information on whether other staff were required to self isolate.
Update... Bangor, North Wales
Now its has been reported that a second B&Q store has been closed following a positive Covid-19 test of one of its employees.
Bangor in North Wales was closed on Thursday and reopened on Friday following deep cleaning.