Provincial police say the warmed weather generally brings an increase in the number of door-to-door sales visits.
Police say two suspicious men were canvassing homes in Goderich recently in an effort to inspect hot water tanks and to enlist customers into a hot water tank rental agreement.
In both cases, investigators say the salespeople claimed to work for Reliance Water Heater, but it was determined they were working for another company.
Police say homeowners should ask salespeople for photo I-D and get any information about products, installation charges or warranties in writing.
