interior decorator:
(also ‘interior designer‘ or ‘house decorator‘; plural: ‘interior decorators‘; pronunciation: the letter ‘i’ rhymes with the letter ‘i’ in “ink”)

an interior decorator at work (painting/wall paper pasting)
a person who plans the layout and chooses the colours, furnishings, etc. for the inside of a room, shop or house (but does not do the actual work/labour of putting or fixing them in);
a person who does the painting work of house and/or pastes wallpapers on the inside walls of a house or building as a job/profession;
a decorator,

an interior decorator/designer at work
My cousin is training to be an interior decorator, and I hope she’ll give my rooms a look when she becomes a certified interior decorator.
An interior decorator must not only know about the latest art fixtures available but also know how to create more space in a small room.
There are great interior decorators available on the Net who readily give you free advice on your budget matters and also help you to choose the best material that fits your budget.
Candidates aspiring to become interior designers have lots of recognised institutions that give them theoretical as well as hands on practice session on the current projects so that the candidates will have a clear idea of what is expected of them as interior designers.
