Do you create closet doors? Do you create mirrored closet doors?

I'm a hvac tech

Not, sure but they might try to call them to see if they will.

No

Probaly, call them

They sell them but they don't "create" them or make them custom on site. They stock a few sizes but I imagine you could have one made to order.

I think they sell them only. They can adjust them slightly I suppose but usually those would be ordered.