There are 2 different items that are often called “cleaning”.
1) You sometimes have a dirt layer, which is due to the fact that the painting has hung in a smoky room for many years (nicotine attack) or in a house with coal stoves (red scale). Sometimes it is also a combination of dirt, flypoints, soot and nicotine.
This type of dirt, we call restorer Surface contamination and cleaning costs are depending on the size of the painting and the paint coat (thick painted or flat, a varnished or unvarnished painting, the state of the linen etc.).
This must always be looked at our studio for a correct price, but a global price for medium size painting is: € 375, – to € 520, -.