I have some carpet on a two landings and up twelve stairs that is stained from pet urine and the product I tried to remove it with. I posted on this forum earlier but have since decided to use matching carpet from my dining/living room area and then replace those rooms with something that, from the distance it is from these stairs, will hardly be noticeable. It is across the way.

My question is, because the carpet I am using to replace damaged areas in has already been laid and stretched once, in the dining room/living room will someone be able to cut and stretch it into the stairs and landings and have it look ok?