Most wood flooring quotes offer floating installation by default. Not because it is the best for you: because it is the quickest for the person laying it. Here are the three techniques, their real 2026 prices, and my clear-cut advice depending on the room, the subfloor and the heating.
The choice of installation method is not a detail of execution: it decides the sound comfort, the compatibility with underfloor heating, how easy repairs will be, and what your floor will be worth in thirty years. And it is codified: each technique has its own , which every serious fitter is expected to follow.
The gold-underlined words are explained on hover. All definitions are in the joinery glossary.
Floating installation (NF DTU 51.11): the boards click together and rest freely on an underlay, without being fixed to the subfloor. The floor "floats", held by its own weight alone. It is the territory of engineered wood and laminate: solid wood moves too much to be left free. Quick, clean, removable.
Glued-down installation (NF DTU 51.2): the boards are glued over the whole surface, with a notched trowel, onto a sound and dry , or onto old, perfectly flat tiles. For engineered wood or thin solid boards. It is the most stable and quietest installation, and the only one truly at ease over underfloor heating.
Nailed installation (NF DTU 51.1): the tradition. Thick solid boards, 20 mm and more, nailed onto battens or joists. It is our grandparents' floor: the one that crosses the century, gets sanded several times, is repaired board by board, and always ends up creaking a little, which is part of its character.
| Criterion | Floating | Glued-down | Nailed |
|---|---|---|---|
| How it works | Boards clicked together, laid free on an underlay | Boards fully glued to the screed | Solid boards nailed to battens |
| Suitable floors | Engineered wood, laminate | Engineered wood, thin solid boards | Thick solid wood |
| 2026 installation price | €25 to €40 per m² | €35 to €50 per m² | €50 to €70 per m² |
| Underfloor heating | Not recommended: the air gap holds the heat back | The right answer, glued over the whole surface | Incompatible in practice |
| Everyday noise | The noisiest, slightly hollow sound | The quietest underfoot | Noisy but warm, creaks with age |
| Reversibility, repairs | Can be taken up and relaid | Heavy to remove, but can be sanded several times | Repaired board by board for a century |
Materials included, the 2026 orders of magnitude: about €70 per m² fitted for laminate, around €100 for engineered wood, from €120 for solid wood; the three families are compared in solid, engineered or laminate. And a detail few quotes highlight: in renovation, in a home over two years old, if the tradesman supplies and fits, VAT is charged at 10%, the reduced French rate, on the whole job, materials included, instead of 20% on flooring you buy yourself.
Underfloor heating first, because it is the most clear-cut case. A floating floor rests on an underlay and traps a thin layer of air, and air is an excellent insulator. The result: the heat stays underneath, the underfloor heating drags along, and you heat the screed instead of the room. Full glued-down installation, without the slightest void, lets the heat through; it demands a flexible solvent-free adhesive, a stable species like oak and a reasonable thickness. If someone offers you a floating floor over underfloor heating, ask one single question: what is the thermal resistance of the whole build-up? The answer is rarely in the seller's favour.
One special case is worth knowing about: thin electric heating mats, laid under a floating floor. It exists, I have done it, and in renovation it can be exactly the right choice: electric mats rolled out at installation time, a special underfloor-heating underlay as a requirement, and a floor chosen for its low thermal resistance. I fitted close to 20 m² this way in two days for a client whose illness kept her from leaving her house for long works, and who quickly needed warmth in the floor: in her situation, comfort nothing else could match. You can be ill and still redo your floor: it is up to the tradesman to adapt, not the other way round. Let's be clear: it is neither the first system to consider, nor a fix for a flawed design, and not every wood floor is suited to it. But when the situation calls for it, it can be done, and it changes a life.
Noise next, the great forgotten item on quotes. For the same product, a floating floor sounds hollow underfoot: it rests on a foam layer and acts as a sound box. A good underlay (cork or wood fibre, not the €1 per m² foam) changes a lot for the neighbours below, less for your own ears. A glued-down floor, on the other hand, becomes one with the screed: it is the full, muted sound we associate with a real wood floor.
Lifespan last. A nailed floor can be repaired board by board for a century; I explain how in repairing a wood floor board. A glued-down floor can be sanded and redone several times. A floating floor can be taken up and relaid: that is its real strength in a rental, or when laid over beautiful tiles you want to preserve. As for the old nailed floor creaking upstairs: before covering it, read renovating an old wood floor; and for the creaks themselves, creaking wood floor.
My honest opinion: there is no best installation in the absolute, there are cases.
And the answer to the question nobody ever lets you ask: yes, the floating installation you are offered everywhere is a choice of speed before it is a technical choice. It has its place (I use it too), but it should be chosen, not endured. My job, on a site visit, is to look at your subfloor, your heating and your use, then tell you which of the three is justified in your home. That is what my wood floor renovation and installation page is about.
No, apart from a few rare manufacturer systems that remain the exception. Done by the book, solid wood is glued or nailed: solid timber moves too much to be left free on an underlay, the boards cup and the joints open up. Floating installation is the territory of engineered wood and laminate, built to stay stable. If someone offers you floating solid wood, ask for the manufacturer's written installation approval.
Full glued-down installation, spread with a trowel, using a flexible solvent-free adhesive: it is the only one that lets the heat through properly. A floating floor traps a layer of air that holds the heating back. You also choose a stable species like oak, a reasonable thickness, and you check that the overall thermal resistance stays low. One special case exists: thin electric heating mats designed to be laid under a floating floor, with a special underfloor-heating underlay; I have already done it in renovation work, in very specific situations. Over underfloor heating, the installation method is not a comfort option: it is what decides whether your heating works.
Floating installation: expect €25 to €40 per m² for installation alone in 2026, against €35 to €50 for glued-down installation and €50 to €70 for nailed installation. But the full calculation is made over time: a glued or nailed wood floor can be sanded and renovated several times, while a damaged floating laminate gets replaced. The cheapest installation to fit is not always the cheapest to live with.
I come and look at your subfloor, your heating and your rooms, and I tell you which of the three installations is justified, or whether your old wood floor deserves to be saved rather than covered. The quote is free and the decision is yours. I speak English, so feel free to call or write in English.
+33 6 03 57 45 47Reply within 48 hours, or in writing: contact@agencementklein.fr
