She's been talked into paying £5500 for a new garage door and (large) front window. She doesn't even need the front window which will just make the others look wrong - she was talked into getting it along with the garage door. We've looked into garage door prices and we reckon an absolutely top super duper one couldn't be more than £1000 fitted. But she won't listen to SIL. So I'm after any bad experiences with their actual workmanship if anyone has ever got that far with them. Also, does anyone know how long the cooling off period might be?