But why would that happen improbable. It happens because a renovation contractor makes high priority on the workability more than the residents living. The result of that, the resident cannot always open the window to avoid dirty by bird droppings.
Lack of the knowledge or awareness of a renovation contractor make dirty something. Perhaps, such renovation contractors may say not to relate bird behaviour and renovation.
The window frames and glass need not be dirty. Condition of a window is always dirty will give you a mental stress unconsciously. Unnatural condition is not good for you.
Anyway, if renovation contractors have just a little careful, the problem never happened.
Behaviours of birds is not responsible on a renovation contractor, but a renovation contractor who always cares about natural providence, make a comfortable home to live for you.
If your are looking for a renovation contractor that thinking your living,
you can find the house renovation service.