Comfort, quiet and curb appeal - in that order of what people notice
We started doing full-frame replacements on older homes where rot and out-of-square openings meant an insert was never going to seal right. That work taught us to slow down at the measure appointment, because a fast measurement is the single most common cause of a unit that does not fit when it arrives.
Most customers expect to talk about glass and price. What surprises people is how much of the conversation is actually about water: where it will go if it gets behind the trim, and whether the flashing gives it somewhere to drain. We would rather spend ten extra minutes explaining that than have a callback in two years.
We handle the measure appointment, permits where the jurisdiction requires them, and disposal of the old units, so the only thing on your list is deciding what you want and living with the noise of install day.
