Plenty of cleaning companies list every town within an hour and then give you a four-hour arrival window, because they are covering ground they cannot service properly.
We work within about thirty minutes of the depot. That radius is what makes a two-hour arrival window realistic, lets us return the same week if anything needs a second look, and means travel is included in the rate rather than added to it.
If you are just outside, call anyway. For regular contracts and larger projects we often stretch — we will just tell you honestly whether it works before you commit.