Why the price can change
The most common reason is wrong calculation of windows. If there are just a few sections that you failed to consider, we won't even mention it and your pricing will not change.
The second reason is if the apartment has been renovated but you have ordered a regular cleaning. In that case, we immediately notify you of a different rate.
The third reason is how dirty the apartment is. If it takes significantly more time than usual, we will suggest that you pay for the extra hours. We can usually estimate the time that the cleaning will take pretty well before it even starts. If we have made a mistake in our calculations, you do not pay for it.