An average sized home which includes 20+ windows can often have varied levels of difficulty including hard to reach windows, stubborn soiling and other circumstances which can make certain jobs more challenging. Any estimate which may seem higher could also be lower (a bungalow for example could incur smaller service fee's) however, we want to aim higher so that any surprises are those which include a lower service fee. Windows which put our staff in dangerous situations, need hard water removal, construction cleaning or are heavily calcified may but not always be a cause for additional fees, however, we will always inform you if any of the aforementioned arise. If you know of or believe there to be an additional work required on specific windows, then please let us know during scheduling time so there are as little or no surprises along the way! Stella Windows won't accept responsibility of any damages incurred due to poorly sealed, unstable and/or cracked windows.