Hi my wife (she who must be obeyed) has decided to replace the laminate in our kitchen diner with vinyl. The problem I have is the floors in the two spaces are at different levels. No problem before because I put a board between the two levels that sort of masked it. I cant do that with vinyl because she wants the same vinyl all the way through. To that amends, what is the best way/ product to use to raise the dining room level up by about 20mm or so and marry the two levels together. Is this something I should even be attempting or is it a job for the professionals. Help please all advice is welcome. Rob