Cost of plasterboard
per m² installed.

The ranges below come neither from a national price scale nor from a comparison site: they are drawn from the quotes we prepared between 2024 and 2026 for houses and apartments in both Savoies. They are excluding VAT, supply and installation included, for standard 13 mm board.

How we counted. For each quote, we kept a single price per type of work, so that a project with ten partition lines does not weigh ten times more than another. The ranges leave out extreme cases, both high and low: they describe what the great majority of our clients pay, not a come-on price.

Two items have no range for lack of sufficient data: the double partition (two frames, three facings), which we rarely cost, and the bonded lining fixed with adhesive mortar, a very small minority of our projects. Rather than extrapolate from two or three lines, we prefer to cost them on a visit.

The square metre of a partition is measured on one face only: a partition 4 m long by 2.50 m high counts as 10 m², even though it carries a board on each side. That is the convention in our quotes, and it is the first thing to check when comparing two proposals.

In our prices, the m² includes the metal frame (floor and ceiling tracks, studs), the screwed boards, and the joint finishing with tape. Almost all of our partition specifications also provide for incorporating the plumbing and heating services that run in the void between the two faces. What is not included: painting, door sets, electrics (sockets, switches, cables) and demolition of what exists, which each have their own line.

Worked example. The 10 m² partition mentioned above comes, according to our ranges, to €650 to €800 excl. VAT, or roughly €720 to €880 incl. VAT at the 10% rate. Add a door and paint on both faces, and the budget for the new bedroom reads item by item instead of as a lump sum impossible to discuss.

The partition separates two rooms: it is self-supporting, clad on both faces. It creates a bedroom in a large living room, closes off a dressing room, isolates a wet room. It is the most frequent item in our quotes, and the one whose price varies least from one project to another.

The lining clads an existing wall on one face only. When it is used to insulate a wall facing the outside, its price includes the insulation and the vapour control layer, which explains the gap with the partition. The choice of thickness, technique and moisture management belong to insulation more than to plastering: we detail them in our guide to insulating walls from the inside. Without insulation, a lining on a frame serves to straighten an uneven wall or hide ducts.

The plasterboard ceiling is a separate item: hangers or a self-supporting frame, work at height, often insulation above. On our quotes, it sits clearly higher than the partition, between €75 and €115 excl. VAT per m². It deserves its own costing, room by room.

The type of board. Standard board is the reference for our ranges. In a wet room, moisture-resistant board adds around €10 excl. VAT per m². Acoustic or fire-resistant boards (a stairwell, for example) are also costed as extras, case by case.

What goes in the partition. Mineral wool slipped between the studs clearly improves acoustic comfort between two bedrooms. The electrical and plumbing services that have to run through it are installed before the second face is closed: it is a question of the order of works more than of price, provided everything is shown on the plan.

Height and geometry. Our partition prices are set for a standard height, around 2.50 m. A high ceiling, a partition under a rafter slope, multiple angles and returns, or small, heavily cut-up surfaces take more time per m².

Access conditions. Carrying boards up to the third floor with no lift, working in a co-ownership building with restricted hours or in an occupied home: these constraints show up in the time spent, and therefore in the price.

Price movements. Over our three years of quotes, the price of insulating linings has barely moved, while that of partitions has gone up a few euros per m² in 2026. A quote dated more than a few months ago is therefore worth updating before signing.

In a home completed more than two years ago, partitions and plastering are improvement and fitting-out works: 10% VAT. A partition at €65-€80 excl. VAT per m² then comes to roughly €72 to €88 incl. VAT.

A lining that insulates a wall facing the outside can qualify for the 5.5% rate for energy renovation, if it meets the technical criteria set by the regulations: €75-€90 excl. VAT becomes roughly €79 to €95 incl. VAT. If these criteria are not met, it stays at 10%.

New construction, or an extension that increases the existing floor area by more than 10%, stays at the standard rate of 20%. All cases, and the wording the client must now put on the quote, are detailed in our article on VAT on renovation works.

Redesigning an apartment's layout is the typical case: in Annecy, Chambéry or Aix-les-Bains, a 1970s three-room flat is turned into a home open to the kitchen, or a bedroom is recreated. The original partitions are then often masonry; their demolition and the removal of rubble through the common areas are costed before the new plasterboard.

Old houses and farmhouses raise a different question: their walls are rarely straight, rarely dry. On such buildings, we favour the metal frame, which takes up out-of-plumb walls and keeps the facing away from the masonry, rather than a board stuck directly onto stone.

In a chalet with many small bedrooms, acoustics between the rooms matter as much as price. This is where wool in the partitions, or even acoustic board, makes the difference for a limited extra cost relative to the comfort gained.

At NovAlp, partitions and linings are installed by our salaried plasterers, who prepare the base themselves for our painters to finish. The team's electricians and plumbers run their services before the partitions are closed, on a single schedule: there is no second face closed too early, then reopened for a forgotten conduit.

This is what allows the quoted price to hold: the measurement is done on site, each item has its line, and the extras (moisture-resistant, acoustic, fire-resistant) are decided before the project rather than discovered during it. When a project also touches the structure, such as opening a load-bearing wall, the plasterboard making-good is included in the same quote.