The hallway has developed a small wave that catches your foot when you carry laundry. Photograph it and arrange an assessment before it becomes a habitual trip point. Do not trim away the apparent excess yourself; the installer needs material to work with.
Check how the carpet was installed
A stretch-in carpet held at the perimeter is not repaired in the same way as a glued installation. Tell the installer whether the ripple appeared after furniture moving, cleaning, a leak or recent installation. Mention open seams, musty odours and areas where the backing feels separated. Those details can change the job from tension adjustment to material repair.
Ask what the restretch includes
Carpet and Rug Institute: installation tips recommends professional attention for wrinkles and identifies power stretching as part of proper installation. Ask whether the quote includes moving furniture, inspecting perimeter fixings, checking the cushion and addressing seams. A quick tug at a doorway may not address a room-wide problem.
Sound carpet and backing
Discuss professional restretching and the cause of lost tension.
Failed seams or edges
Include repair feasibility and spare material in the scope.
Wet or deteriorated materials
Resolve moisture and condition before deciding what can stay.
Glue-down installation
Use the repair method for that assembly, not stretch-in assumptions.
Make space for the equipment
Confirm which furniture must leave the room, including heavy beds and fitted-looking units that are actually movable. Discuss fragile belongings and where items will go while the carpet is worked. A repair price that assumes an empty room is not directly comparable with one that includes moving everything. The access plan also helps avoid freshly tensioned carpet being dragged out of shape by the last wardrobe.
Compare a durable repair with a full replacement
Ask the installer to point out any backing breakdown, wear-through or edge damage that limits repair. If replacement is recommended, request the reason in plain language. Keep the original installation information if a warranty may apply. Stairs deserve a separate assessment; a runner's attachment and nosing fit are not the same as a room carpet.
For that next job, read stair runner planning. If replacement changes the floor level at a doorway, include the transition height in the scope before ordering materials.

