Porous Surfaces – Porous Surfaces in your home ie: moldings, old paint on baseboards, caulk, shower doors, bathtubs, furniture, counters, etc. may not appear to have been cleaned due to the nature of a porous surface. They contain small crevasses that hold trapped dirt for years and can be nearly impossible to get 100% clean without the use of abrasive actions that can potentially cause damage to the surface. Homes that have these types of surfaces and have not had them refinished to a smooth surface can cause the appearance that the item(s) have not been cleaned when in fact they have been. We can clean over surfaces like this many times and still have the same visual results. Please take a good look if you feel an item like this has been missed before the assumption is made that it was not cleaned.