The call usually starts the same way. Somebody walks across their living room, feels a ridge under their foot that was not there last month, and calls us convinced they bought a bad floor.
Almost never is the product the problem. In the great majority of the failed laminate floors I have looked at around Durham, the plank was fine. Something about how it was installed, or something underneath it, caused it to move in a way it could not recover from.
The good news in that is diagnostic. Laminate fails in a small number of specific ways, and each one points at a fairly short list of causes. If you can describe what your floor is doing and where, you can usually get close to the reason before anyone comes out. That matters, because the cause determines whether this is a few hundred dollar fix or a floor that has to come up.
I have been installing and repairing floors in Durham and the Triangle since 2010. Here is how to read your own floor.
Identify the Symptom First
Peaking. Two planks meet at a seam and push up into a ridge, like a tiny speed bump running across the room. You feel it before you see it. This is the most common laminate failure we get called for.
Buckling or lifting. More severe than peaking. A whole section of floor has come up off the subfloor, sometimes an inch or more, often near a wall or in the middle of a long run.
Gapping. The opposite direction. Seams have pulled apart and you can see thin dark lines between planks, sometimes wide enough to catch a fingernail or collect crumbs.
Swollen or crumbly edges. The seam is not raised into a clean ridge, it is puffy and rough, and the top layer may be chipping at the edge. This is a water problem, not a movement problem, and it is a different diagnosis from the three above.
Clicking, popping, or a hollow drum sound. The floor moves slightly underfoot and makes noise, but nothing is visibly wrong. This is usually a subfloor or underlayment issue rather than a plank issue.
The Four Causes, and How to Tell Them Apart
1. The expansion gap is too tight or has been pinched shut
This is cause number one by a wide margin, and it produces peaking and buckling.
Laminate is a floating floor. It has to be able to grow and shrink with the seasons, which means there has to be an open gap between the edge of the floor and every wall, hidden behind the baseboard or quarter round. If that gap is too small, or if it got closed off, the floor expands, runs out of room, and the only direction left is up.
The gap gets closed in a few predictable ways. Someone nailed the baseboard or quarter round down through the laminate instead of into the wall. A transition strip got screwed through the floor into the subfloor. A heavy kitchen island, a built-in bookcase, or a piano is sitting on the floor and pinning it in place. Or the gap was simply cut too small on installation day.
The tell: peaking that shows up in summer, and peaking that runs in a line rather than appearing at one random spot.
2. The material was never acclimated
Laminate that was installed straight off the truck, or that sat in a hot garage before installation, is carrying a different moisture content than the room it now lives in. It changes size after it is locked into place.
Installed too dry, it swells and peaks the first humid summer. Installed too wet, it shrinks and gaps the first winter when the heat runs.
The tell: the timing. Problems that appear during the first seasonal swing after installation, rather than years later, point here.
3. Moisture is coming up from underneath
This one produces the swollen edges, and in bad cases buckling as well.
If your floor is on a concrete slab, the slab is a moisture source. Concrete holds water and releases vapor upward continuously, and that is what the vapor barrier under your floor is supposed to handle. If a barrier was skipped, or the slab was never tested, moisture reaches the plank core from below.
This is not a fringe concern. It is written into the industry standard for testing slabs. The significance section of ASTM F2170, the test method for measuring relative humidity inside concrete floor slabs with in situ probes, names peaking specifically as one of the floor covering failures excessive slab moisture can cause after installation. When the people who write the testing standard list your exact symptom, that is worth paying attention to.
Crawlspaces do the same thing in older Durham houses. A damp crawlspace under a 1940s bungalow behaves like a slab as far as your floor is concerned. Slabs in this climate also sweat seasonally, which we wrote about in the context of basement slabs in North Carolina, and the physics is the same one floor up.
The tell: damage concentrated in one area rather than spread across the room, a musty smell, or swelling that is worse near an exterior wall, a bathroom, or a kitchen appliance.
4. The subfloor is not flat, or the underlayment is wrong
This causes the clicking and hollow sound, and over time it causes joint failure too. Laminate locking joints are designed to sit on a flat plane. Where the subfloor dips, the plank bridges the dip, and every footstep flexes that joint. Eventually it loosens or separates.
The tell: noise and movement without visible damage, usually in the same specific spots every time.
Diagnosing Your Own Floor in Ten Minutes
Before you call anyone, gather these five things. It will make the estimate faster and the diagnosis better.
What season did it start? Summer onset points to expansion. Winter onset points to contraction. Onset with no relation to season points to a water source.
Where in the room is it? Near a wall, near a doorway, or under something heavy points to the expansion gap. Middle of the room with no obvious trigger points to moisture or subfloor.
Is it in one room or several? One room suggests a local cause such as a leak or a pinned edge. Multiple rooms suggests acclimation or a whole floor installation problem.
Pull back a corner of quarter round in an inconspicuous spot. Is there an actual gap between the laminate and the wall, or is the floor tight to the drywall? This one check answers the question more often than anything else.
Run your hand over the bad seam. A clean hard ridge is movement. A puffy rough edge is water.
Take photos of all of it. If we come out, that history is genuinely useful.
What Laminate Repairs Cost in Durham
These are approximate ranges to help you budget, not a quote and not a price list. What your repair costs depends on the cause, how far into the room the damage sits, and whether the original material can be reused.
Relief cuts and re-trimming the expansion gap. If the floor is simply pinned and the planks themselves are undamaged, the fix is to open the perimeter gap back up, free whatever is pinning the floor, and let it settle. Often a single room runs somewhere in the range of $200 to $600. This is the best case and it is more common than people expect.
Replacing a handful of damaged planks. Usually somewhere around $300 to $900 depending on how deep into the room the damage is. Laminate locks together in rows, so reaching a bad plank in the middle of a floor can mean unlocking everything back to the nearest wall and relaying it. A plank two feet from the wall is cheap. The same plank in the center of a great room is not.
Relaying a full room. When enough planks are damaged or the layout has to come apart anyway, this generally runs somewhere in the range of half to three quarters of what the original installation cost for that room, since the labor repeats but a good portion of the material can often be reused.
Full replacement. If the core has swollen across a significant area, the material is done. Budget the original installation cost again, which in Durham for laminate is generally about $3 to $8 per square foot installed, plus whatever prep the subfloor needs.
Subfloor work. Leveling, patching, or replacing sections of a wet or damaged subfloor is separate from the flooring itself and priced on what we find. So is fixing the water source. If the cause is a plumbing leak or a crawlspace moisture problem, that is a plumber or an encapsulation contractor, and it has to be resolved before any new floor goes down. Putting a new floor over an unresolved water source is throwing money away.
Is This a Warranty Claim?
Usually not, and I would rather tell you that upfront than let you spend three weeks on paperwork.
Manufacturer warranties cover manufacturing defects. They almost universally exclude damage caused by installation that did not follow the printed instructions, and acclimation, expansion gap, and vapor barrier requirements are all part of those instructions. They also exclude water from beneath the floor, standing water, flooding, and appliance failures.
So the failures described in this post are, by the manufacturer’s definition, installation failures rather than product failures. That is frustrating if you paid someone else to install it. If the floor is recent and the installer is still in business, your claim is with them, not the manufacturer.
If the installation was ours, call us. We warranty our work.
What Actually Prevents This
Every one of these failures is preventable, and none of the prevention is expensive. It is just work that is easy to skip.
Test the subfloor for moisture before ordering anything, and use a vapor barrier on slab every time.
Let the material acclimate in the room where it is going, at normal living conditions, for the period the manufacturer specifies.
Leave a real expansion gap at every wall and every fixed obstacle, and fasten trim to the wall rather than through the floor.
Level the subfloor rather than hoping the underlayment absorbs the dips.
Choose a plank appropriate for our climate, which we covered in the best laminate for Durham’s humidity.
These same shortcuts show up again and again on the repairs we get called for, which is why they made our list of the laminate mistakes we fix for Durham homeowners, and why the subfloor checklist we run before installing over tile or concrete exists in the first place.
When I’d Tell You to Change Materials Instead
Sometimes the right answer to a failed laminate floor is not another laminate floor.
If the failure was caused by water in a bathroom, laundry room, or basement, replacing laminate with laminate is going to produce the same outcome in a few years. Those rooms want luxury vinyl plank or tile, because neither has a wood fiber core to swell. If you are working through that decision, our laminate versus LVP comparison for Durham homes lays out the tradeoffs.
If the floor is simply old and the failures are spreading, that is a different conversation. Laminate cannot be refinished, so at some point repair stops being economical and replacement is the honest recommendation. We put realistic numbers on that lifespan in how long laminate flooring actually lasts in a Durham home.
Laminate Damage FAQs
Can buckled laminate go back down flat on its own? Sometimes, partially. If the cause was expansion and the pressure gets relieved by opening the gap back up, planks that were not damaged in the process often settle. Planks whose locking joints were stressed apart usually do not fully reseat and need replacing.
Why is my laminate gapping only in winter? Indoor air dries out when the heat runs, the planks contract, and joints that were not tightly seated at installation pull apart. If the gaps close back up in summer, the floor is moving normally and the seasonal swing in your house is larger than ideal. If they do not close, the joints have separated permanently.
Can you replace just one laminate plank? Yes, though how much work it is depends entirely on location. Planks near a wall are straightforward. Planks in the middle of a room require unlocking rows back to the nearest edge, or cutting the damaged plank out and gluing a replacement in, which is a compromise fix.
Will homeowners insurance cover this? It depends on the cause and your policy. A sudden event such as a burst supply line is more likely to be covered than gradual moisture intrusion or an installation defect. Take photos before anything is repaired and talk to your carrier before work begins.
How long do I have before it gets worse? Movement damage is not urgent in a safety sense, but it does spread as more joints get stressed. Water damage is urgent, because the water is still coming from somewhere and the longer it sits under a floating floor the more of your subfloor is involved.
Do I have to leave the house during the repair? Almost never. Most single room laminate repairs are a one day job, and we work room by room so you can stay put.
Getting It Looked At
If your floor is doing any of this, take a few photos, note when it started, and check whether there is an actual gap behind the quarter round. Then call and we will come look.
We tell you what caused it before we tell you what it costs, because those two things are connected, and because if the cause is a leak you need to know that regardless of who does the flooring work. If it is a simple relief cut, we will say so rather than quoting you a new floor.
You can see our laminate flooring installation and repair services or request a free estimate.
Vilchis Hardwood Floors & Tile is at 237 Obie Dr, Durham, NC 27713. Call (919) 794-1116, Monday through Friday, 9:00 AM to 5:00 PM. We repair and install laminate in Durham, Raleigh, Cary, Chapel Hill, Carrboro, Wake Forest, Apex, Morrisville, and Hillsborough.
Mario Vilchis is the owner and CEO of Vilchis Hardwood Floors & Tile, a family owned flooring company in Durham, NC serving the Triangle since 2010. He runs the crew that installs every job the company quotes.
