A ceiling comprises ductwork, a junction of pipes and rafters. We tend to see dirt on the ground level, but it is to be noted that it is necessary to look up towards your ceilings and contemplate if they are dirty as well.
They are just as necessary to be taken care of as any other part of your residence because ceilings can prove to be main mediums of carrying grease, dust, soilage and other kinds of polluting particles. These particles travel through air and stick to the surface of your ceilings. Thus, high surfaces accumulate dirt quickly, which is why they need to be associated with professional cleaning to make sure that the debris does not fall, or your house does not get dirty with health risks attached, as mould and mites are built-up when the ceilings get dirty.