BOGUS workers may be operating in the area, police said.
A Hampshire Constabulary spokeswoman said there had been an incident in Wymering on Thursday.
A man in his 80s handed over thousands of pounds to the fraudsters for work.
Now the force has said a company using the name Tradewise Drive and Patios may approach residents and offer to resurface a driveway for a large cash sum.
Police believe a real company name is being used.
Anyone with information is asked to call the police on 101.