Whether to repair or replace laminate flooring depends less on how bad the damage looks and more on three things: what caused it, how much of the floor it affects, and whether matching boards can still be found. A few chipped, swollen or lifting planks in one area can usually be repaired. When the same problem runs across most of the room, starts in the subfloor, or the floor is already worn through, replacement is normally the better use of money.
Laminate behaves differently from timber. It cannot be sanded or refinished, because the pattern is a printed layer under a thin protective surface, and boards that have taken on water do not shrink back. So a laminate repair nearly always means taking out the damaged boards and putting new ones in. That is why spare boards and the position of the damage matter so much to the decision.
Find the cause before deciding anything
New boards fitted over an unsolved problem will fail in the same way. Before comparing repair with replacement, work out which of these you are dealing with:
- Surface damage: a dropped pan, a dragged appliance, a burn or a pet’s claws. The floor underneath is fine, so the damage stays where it is.
- Water: a leaking dishwasher, washing machine, sink trap, radiator valve or shower seal. Damage spreads outwards from the source and may still be spreading.
- Movement: the floor has no room to expand, usually because the edge gap was too small or something heavy or fixed is pinning it. The floor lifts in a ridge or peaks at the joints.
- Subfloor: dips, humps, loose floorboards or a damp screed underneath. The laminate is reflecting a problem below it.
Surface damage is the case where repair most often wins. Movement problems can usually be put right by freeing the edges and relaying an area, as explained on our flooring repairs page. Water and subfloor problems are where repair and replacement start to compete. If water is involved, the leak has to be found and fixed first; our guide to dealing with a water leak at home covers the first steps.
Problem by problem: where the line usually falls
Chips, dents, scratches and burns
Small chips and light scratches can be disguised with a laminate repair wax or filler in a matching colour. It is a cosmetic fix and works best on patterned, mid-tone floors where a slight difference will not show. Deeper damage, or anything that has broken through the surface layer, means replacing the board. One or two damaged boards is a repair job, not a reason to replace the floor.
Swollen or raised edges at the joints
Raised, puffy edges along the joints are the classic sign of water getting in, either from a spill left to sit or from mopping with too much water. If it is confined to a few boards near a sink, appliance or doorway, those boards can be replaced once the source is dealt with. If the swelling follows the joints across a large part of the room, the core of many boards has taken on moisture, and replacing the floor is usually more realistic than replacing board after board.
Gaps opening between boards
Small gaps that open in winter and close in summer are normal seasonal movement. Gaps that stay open can often be closed by tapping the rows back together, if the locking edges are undamaged. Repeated gapping across the floor can point to an uneven subfloor or a click system that has worn or broken. If the locking edges are failing throughout, repair stops being worthwhile.
A floor that feels bouncy, creaks or sounds hollow
Some softness underfoot is normal with a floating floor. A pronounced dip, a board that flexes or a creak in one spot usually means something underneath: a loose floorboard, a gap in the underlay or an uneven patch of subfloor. In a small area, the boards can be lifted back to that point, the subfloor put right and the same boards relaid. If the whole floor moves like this, the original preparation was probably inadequate, and fixing it means lifting most of the floor anyway. At that point, replacing it with proper preparation underneath is often the better choice.
Worn paths and dull traffic lanes
When the pattern has worn through in hallways, doorways or in front of the sofa, the floor’s surface has reached the end of its life. Laminate is sold in use classes for different levels of footfall, and a domestic-grade board in a busy hallway or an office will wear faster. Replacing the worn boards only moves the problem along, because the boards next to them are rarely far behind. This is the clearest case for a new floor, ideally with a product rated for that room.
Finding matching boards
A repair is only as good as the match. Spare boards from the original installation are ideal. If there are none, the product name or code is often printed on the back of the boards or on leftover packaging, and it can be checked against what is still on sale.
Two things catch people out. First, an identical-looking decor from a different brand may not fit, because the click-locking profile and board thickness vary between manufacturers. Second, even the same product will not look quite the same as boards that have spent years in sunlight. A new board in the middle of a sunny room can stand out, while the same board near a wall or under a rug may be invisible. When no match exists, a board can sometimes be taken from inside a fitted wardrobe or under a kitchen unit and replaced there with the closest available product.
Where the damage is changes the job
Because laminate boards lock to their neighbours on all sides, the position of a damaged board affects how much of the floor has to come up to reach it.
- Near a wall: the skirting or beading comes off, the rows are unclipped back to the damaged board, it is swapped and the rows are clicked back in. This is usually the simplest repair.
- In the middle of a room: either many rows are unclipped to reach it, or the damaged board is cut out and a new one glued in with its locking edge partly removed. A glued board is fixed in place, so it suits a single board rather than a large patch.
- Under kitchen plinths, door frames or fitted furniture: these may need to come off or out first, which adds time even for one board.
- Across a doorway: if the floor runs continuously from one room to the next, a repair in the doorway can involve both rooms.
So two floors with the same number of damaged boards can be very different repair jobs. A handful of boards along a wall is a quick fix. The same number scattered across the middle of a large open-plan room can take long enough that replacing the floor starts to look sensible.
When a new floor is the better answer
Replacement usually makes more sense than repair when one or more of these apply:
- water damage or swelling covers a large share of the room;
- the cause is in the subfloor across the whole room, so most boards have to be lifted anyway;
- the surface is worn through in the main walkways;
- the locking edges are failing throughout, so gaps keep returning;
- no matching boards exist and the damage is in a place where a mismatch would be obvious;
- the existing floor does not meet a requirement you now need it to meet, such as the acoustic underlay many flat leases specify, or water resistance in a kitchen.
If you were planning to change the floor within a year or two, a costly repair to an ageing floor rarely pays back. A small, tidy repair to keep it presentable until then often does.
Replacing one room rather than the whole floor
Laminate often runs continuously through several rooms or an open-plan space, which can make it seem like an all-or-nothing choice. It does not have to be. A threshold strip at a doorway can separate the damaged room so it can be replaced on its own, and large floors often need a break at doorways anyway. The new floor needs to finish at a similar height to the old one, and some difference in colour between the rooms has to be accepted. In an open-plan space with no natural break, partial replacement is much harder to make look right.
What to have ready before asking for a price
Whether the answer is a repair or a new floor is easier to judge when the person quoting can see the whole picture. Before you get in touch:
- Photograph the damage close up and the whole room from the doorway, so the position of the damage is clear.
- Look for spare boards, leftover packaging or the product name on the back of a board.
- Note whether the floor runs into other rooms without a threshold.
- If water may be involved, note when you first noticed it and whether it is getting worse.
- In a flat, check what your lease says about hard flooring and underlay before choosing a replacement. Our guide to maintaining a flat in a managed block explains why buildings set these rules.
If the damage is limited and the cause is known, our floor repair service deals with individual boards, edges and thresholds. If the floor has reached the point where a new one is the sensible choice, the laminate flooring installation page explains how the subfloor, underlay and finishing details are handled so the new floor lasts longer than the old one.
