The whole site exists to make an in-home appointment feel safe
Most people who do not inquire are avoiding the visit rather than the windows, and almost no dealer site addresses that directly.
Homeowners have heard about window and door consultations. The three hour appointment, the price that drops when somebody heads for the door, the difficulty of ending it. Whether or not that describes you, it is what a visitor is bracing for.
Saying plainly how your appointment works removes more friction than any design choice. How long it takes, who comes, whether measurements happen on the day, whether a price is given, and how long that price stays good.
The commitment that matters most is what happens if they say no. Stating that you will leave a written quote and follow up once, and then meaning it, addresses the actual fear.
Naming the decision-maker requirement here rather than at booking is better for everyone. Somebody who learns it on the site can arrange it. Somebody who learns it on the phone experiences it as a hurdle.
This is a page, not a sentence, and it will be read by more serious prospects than almost anything else on the site.