Can I fit carpet myself, or should I pay a fitter?
What fitting carpet actually involves, which rooms an amateur can genuinely do, and why the stretching — not the cutting — is the part that separates the two outcomes.
- Difficulty
- advanced
- Time
- 45 min
- Read
- 3 min
- Safety
- caution
Short answer
A small, simple, square room with no seam is a realistic DIY job with hired tools. A large room needing a seam, a room with a bay, and any staircase are not — the stretching and seaming are skilled, the tools are specialised, and a fitter is usually cheap relative to the cost of the carpet you will ruin.
Do this first
Everyone assumes the hard part of carpet fitting is cutting it to shape. It is not. The hard part is getting a large heavy textile under even tension across a whole room and holding it there, which is what stops it rippling in a year. That is what the specialist tools do and it is what experience buys.
Safety
Gripper rod is a length of timber studded with sharp angled pins and it causes hand and knee injuries routinely — handle it with gloves and never kneel on it. A knee kicker used repeatedly is hard on the knee joint. Stairs are the highest-risk part of the job in every sense: a badly fitted stair carpet is a fall hazard, and it is the part that most repays paying someone.
Step by step
- Assess the room honestly.Square, under the roll width, no bay, no stairs, and a floor you can get gripper into: a realistic DIY job. Anything requiring a seam, a template around a bay, or a staircase: pay someone.
- Understand the components.Gripper rod fixed around the perimeter with its pins angled towards the wall, set back from the skirting by a gully of roughly two thirds of the carpet thickness. Underlay butted up to the gripper, taped at the joints, never lapped over it. Carpet stretched onto the pins and tucked into the gully.
- Prepare the subfloor.Lift the old carpet, underlay, gripper and every staple. Punch nails, fix squeaks, check for damp, and sweep and vacuum thoroughly. Everything left on the floor will be felt through the carpet.
- Fit the gripper correctly.Pins angled towards the wall so tension pulls the carpet onto them, not off. Set back the correct gully distance. On concrete, use masonry pins or adhesive rather than the standard nails, and keep it clear of a doorway where a threshold bar goes instead.
- Lay the underlay to the gripper, not over it.Butt joints, taped. Underlay lapped over the gripper is the classic amateur error and it produces a soft edge that releases within months.
- Rough cut generously.Leave a good overlap at every wall — a hundred millimetres or so. Trimming to the exact size before stretching is the mistake there is no recovery from.
- Stretch, then trim.A knee kicker gets a small room tight; a power stretcher is what makes a large one stay tight. Work from one corner, hooking the carpet onto the gripper as you go, stretching diagonally across the room. Only trim once it is on the pins all round.
- Trim and tuck properly.Trim with a wall trimmer or a sharp knife against a bolster, leaving enough to tuck into the gully, then drive the edge down into the gully with a bolster so the cut edge is hidden and held.
- Finish the doorways.A threshold bar of the correct profile for what the carpet meets, fixed to the subfloor. This is a safety detail as much as a finish one.
- Know when to stop and call someone.If the carpet is not going onto the gripper evenly, if ripples are appearing as you work, or if you have reached the stairs, that is the point to stop rather than the point to push on.
Tips
- Hire the knee kicker and the wall trimmer. Trying to fit carpet with a knife and enthusiasm is where most bad DIY carpet jobs come from.
- Fitters often charge a modest amount per square metre and are usually quicker than an amateur by a factor of several. On a large room, the fitting cost is small relative to the carpet, and the carpet is what is at risk.
- Buy the carpet from a supplier who will also fit it, and the responsibility for a bad result stays in one place.
- Do the cupboard or the small bedroom first if you want to learn. Do not learn on the room you care about.