When you move out of an apartment or office space it should be left clean. You need to clean all carpets, walls, windows, floors etc.. Time does not always permit for you to clean an apartment or office yourself when you move out. When you move out of a home or office space you may choose to clean it yourself or hire professionals to come in and clean for you. If you move out of an office space and home and don't clean it then the landlord will clean it themselves and send you a bill or they will hire professionals to come in and clean and bill you for the cost of cleaning. Hiring your own professional to come in and help with move outs is a lot cheaper then leaving it up to the landlord.