Garage Door Perimeter Weatherstrip: reading the quote

Wipe the fin with a silicone spray or a silicone lubricant on a cloth in late autumn and once or twice through the winter. The film cuts the odds of meltwater bonding the fin to the cold door face, though a hard freeze can still catch it. Avoid oil-based products, which soften vinyl. If the door does freeze to the seal, let the sun or a little warm water free it, dry the spot afterwards, and avoid forcing the opener.

Doing the bottom seal at the same time

When the bottom seal on the door is also worn, renewing it during the same visit is offered as a separate line and saves the cost of a second call.

Trim, brickmould and caulking

Re-caulking the joint between stop and trim, or dressing capping that channels water down the jamb, is small work done while the surface is bare and is listed on its own line.

Fin on the existing stop or a one-piece vinyl stop

Nailing a new fin to a sound wood stop uses less material than replacing the stop with a one-piece vinyl moulding, which costs more as a part but needs no paint and does not rot.