A new partition wall in London in 2027 typically costs £180 to £280 per linear metre for a standard timber stud wall, single-boarded and skimmed each side, which works out at roughly £1,200 to £1,800 for a typical 3.5 to 4 metre wall dividing a bedroom or reception room. Adding a doorway typically adds £250 to £450. Acoustic and fire-rated partitions, needing double-layer board and mineral wool insulation, typically cost £280 to £480 per linear metre, and glazed partitions typically cost £450 to £750 per linear metre. This guide sets out realistic 2027 cost bands for each type of partition, and explains why a new wall costs meaningfully more than repairing an existing one.
Partition wall cost in London by type
Partition wall cost is priced mainly by linear metre of wall run, with height, board specification and any doorway or service routing added on top. A standard timber stud partition, using 75mm or 100mm timber, single-boarded with 12.5mm plasterboard on each side and finished with a taped, jointed and skimmed surface ready for decoration, typically costs £180 to £280 per linear metre at a standard 2.4 to 2.6 metre ceiling height. For a typical 3.5 to 4 metre wall, common for splitting a bedroom or reception room, that works out at roughly £1,200 to £1,800 for the wall alone, before a doorway is added.
Forming a doorway within a new partition typically adds £250 to £450 to the job, covering the door lining, a structural lintel or head detail above the opening even though the wall itself isn't load-bearing, and hanging the door once decoration is complete. Metal stud partitions, using galvanised C-studs and track rather than timber, typically cost £220 to £340 per linear metre, reflecting the material cost and the greater precision needed to keep a long run dead straight, and are our preferred method where fire performance is critical or the building has a concrete or steel frame that timber isn't practical to fix into.
London partition wall cost guide (2027)
Item
Typical range
Notes
Timber stud partition, single board each side, skimmed (per linear metre)
£180–£280/lm
Standard 2.4–2.6m ceiling height
Standard bedroom/room-dividing partition, 3.5–4m run, no door
£1,200–£1,800
Wall only, decoration not included
Adding a doorway within a new partition
£250–£450
Metal stud partition (per linear metre)
£220–£340/lm
Straighter runs, concrete/steel-frame buildings
Acoustic/sound-rated partition upgrade, double board and mineral wool (per linear metre)
£280–£420/lm
HMO fire-rated partition, two layers 12.5mm board, mineral wool (per linear metre)
£320–£480/lm
Glazed partition, aluminium-framed, single glazed (per linear metre)
£450–£750/lm
Figures are general London market guidance only, not a fixed Lian Construction quote. Wall length, height, specification and access all affect the final price.
Timber stud vs metal stud: which costs more, and why
Most domestic partitions in London are still built with timber studwork, typically 75mm or 100mm CLS or sawn timber, screwed to floor and ceiling with noggins at fixing height for radiators, handrails or wall-mounted units. It's the more affordable of the two methods, familiar to work with, and straightforward for other trades to fix into once the wall is finished, which is why it remains the default for a standard bedroom or reception room partition.
Metal stud, galvanised C-studs and track, costs more per linear metre, but it earns that cost back on longer or more demanding runs. It doesn't shrink or move the way timber can over its first year, which matters on a taller wall or where a dead straight, unmarked finish is expected, and it's the more practical choice on a concrete or steel-frame building where there's nothing suitable to fix timber into directly. For a single short partition in a typical Victorian or Edwardian terrace with suspended timber floors, timber stud is usually the sensible, lower-cost default, and metal stud becomes the better option once fire performance, wall length or the building's structure push the specification beyond what timber comfortably handles.
Soundproofing and acoustic partition upgrades
A standard single-boarded stud partition offers only modest sound insulation between rooms, which is fine for splitting a large room into two similar living spaces but is often not enough where noise from a bedroom, home office or a shared wall with a neighbour needs genuinely reducing. An acoustic upgrade typically uses two layers of plasterboard on at least one side of the wall, mineral wool acoustic quilt filling the stud void, and, where sound performance really matters, resilient bars fixing the board to the studs rather than a direct fix, which reduces sound transmission through the timber or metal frame itself rather than just through the board.
This specification typically costs £280 to £420 per linear metre, reflecting the extra board, insulation and, where used, resilient bar fixings over a standard stud wall. It's the same broad approach used for HMO fire-rated partitions, though a fire rating and an acoustic rating aren't automatically the same thing: a wall built to meet fire separation requirements doesn't necessarily deliver a strong sound reduction, and a wall built for sound alone doesn't necessarily meet a fire rating, so it's worth being specific at the outset about which requirement, or both, actually applies to a given wall.
Fire-rated partitions for HMOs
Where a property is being converted into an HMO, or an existing HMO bedroom wall needs bringing up to licensing standard, the partition needs to meet a defined fire separation performance, typically using two layers of 12.5mm plasterboard with staggered joints and mineral wool insulation in the void, rather than a basic single-boarded stud wall. This specification typically costs £320 to £480 per linear metre, and the replacement or new section needs to match the correct board specification throughout, since a mismatched repair or extension using standard board can compromise the rating of the whole wall.
Fire-rated partition work in an HMO context sits alongside other licensing requirements, fire doors, smoke alarms and emergency lighting, and it's worth scoping partition work as part of the same compliance review rather than in isolation, since a landlord bringing one element up to standard often needs to address several at the same time to satisfy licensing conditions.
Glazed partitions
A glazed partition, typically an aluminium-framed system with single glazing, is the most expensive option per linear metre, typically £450 to £750, reflecting the cost of the framing system and glass over standard timber or metal stud and plasterboard. Glazed partitions are more commonly specified in a home office, a converted loft or basement room needing borrowed light from an adjoining space, or a commercial fit-out than in a typical domestic bedroom-splitting job, since the appeal is usually about maintaining light and a sense of openness between two spaces rather than full separation.
Acoustic performance on a glazed partition depends heavily on the glazing specification, and a single-glazed system offers considerably less sound reduction than a solid stud wall of equivalent length, which is worth factoring in if the partition is separating a room where noise genuinely matters, a home office next to a bedroom, for example, rather than simply dividing an open-plan living space.
Why a new partition wall costs more than a plasterboard repair
It's worth being clear about the difference between building a new partition wall and repairing an existing one, since the two get confused and the cost gap between them is real rather than a pricing inconsistency. Our plasterboard repair cost guide sets out £120 to £900 for repairing damage to an existing wall, cutting back a damaged section, fitting new board to existing studwork, and jointing and skimming to blend with the surrounding wall that's already there, already fixed to floor and ceiling, and already carrying any services it needs to.
A new partition wall starts from nothing: setting out and fixing a full stud frame from floor to ceiling, running any electrics or plumbing through it before boarding, boarding both faces rather than patching one section, and jointing and skimming the whole wall rather than a small area. Even a modest 3.5 to 4 metre wall at £1,200 to £1,800 involves several times the material and labour of a typical plasterboard repair, which is exactly why the figures in this guide sit meaningfully higher than the plasterboard repair range, reflecting a genuinely bigger scope of work rather than the same job priced differently.
When partition work goes beyond a straightforward stud wall
Everything in this guide assumes a genuinely non-load-bearing partition, adding a new dividing wall or removing an existing stud wall that isn't carrying any structural load from above. Where the work involves removing an existing wall rather than adding one, the first question at survey stage is always whether that wall is load-bearing, since even a wall that looks like a simple stud partition can, in an older or previously altered property, be carrying more than its own weight. If there's any doubt, we won't proceed on an assumption either way.
Where a wall does turn out to be load-bearing, or where removing it affects the structure of the property, that's a different scope of work entirely, involving a structural engineer to assess the load path and specify what's needed, typically a steel beam, before any wall comes down. This sits outside a standard partition job and outside our scope to specify ourselves, though we coordinate the structural engineer's input as part of the wider project once it's confirmed necessary. Similarly, where a new or altered partition sits on or very close to a shared party wall, common in a converted terrace or semi, the Party Wall etc. Act 1996 can apply even for internal work, and a party wall surveyor's involvement, and formal notice to the neighbouring owner, is a separate process from the partition build itself and sits with the property owner to arrange, though we'll flag at survey stage where this is likely to be relevant so it can be built into the project timeline early rather than discovered once work is already booked in.
Partition wall timeline in London
A single stud partition, including boarding and jointing, is often completed within a few days once the layout and any service positions are agreed, though drying time for the skim coat and any electrical first-fix will affect the overall programme. Plaster and jointing compound need a few days to a week to dry properly before decorating, depending on room ventilation and time of year, so the wall being structurally complete and the room being ready for paint are two different points in the timeline.
Where a partition forms part of a larger layout change, particularly one involving removing an existing wall or bringing in a structural engineer to confirm load-bearing status, the partition build itself is usually the quicker stage. Time is more often added by the assessment and sign-off process beforehand, and by party wall notice periods where they apply, both of which are worth starting well ahead of a planned start date rather than assumed to run in parallel with the physical build.
Questions
Frequently asked questions
How much does a partition wall cost in London in 2027?
A standard timber stud partition typically costs £180 to £280 per linear metre, working out at roughly £1,200 to £1,800 for a typical 3.5 to 4 metre wall. Adding a doorway typically adds £250 to £450. Acoustic or fire-rated partitions typically cost £280 to £480 per linear metre, and glazed partitions typically cost £450 to £750 per linear metre.
Why does a new partition wall cost more than a plasterboard repair?
A plasterboard repair, typically £120 to £900, works on a wall that already exists, patching a section of board fixed to existing studwork. A new partition wall involves building a full stud frame from floor to ceiling, boarding both faces, and jointing and skimming the whole wall, which is several times the material and labour of a typical repair.
Should I choose timber or metal stud for a new partition?
Timber stud is the more affordable, familiar default for a standard domestic partition in a typical property with suspended timber floors. Metal stud costs more per linear metre but is the better choice for longer runs needing to stay dead straight, where fire performance is critical, or in a concrete or steel-frame building where timber isn't practical to fix into.
How much does a soundproof partition wall cost?
An acoustic partition upgrade, using two layers of plasterboard, mineral wool insulation in the stud void and, where needed, resilient bar fixings, typically costs £280 to £420 per linear metre, reflecting the extra board and insulation over a standard single-boarded stud wall.
Does a fire-rated partition cost more than an acoustic one?
They're similar, though a fire-rated HMO partition, typically £320 to £480 per linear metre, usually costs a little more than a purely acoustic upgrade, since it needs two layers of board with staggered joints and mineral wool to a specific fire performance standard. A fire rating and a sound rating aren't automatically the same thing, so it's worth being clear which requirement applies to a specific wall.
Is a glazed partition much more expensive than a standard stud wall?
Yes. A glazed partition typically costs £450 to £750 per linear metre, against £180 to £280 for a standard timber stud wall, reflecting the cost of the aluminium framing system and glass. It's usually chosen for the light and openness it provides rather than as a cost-effective way to divide a room.
Do I need a structural engineer to remove a partition wall?
Only if the wall turns out to be load-bearing, which isn't always obvious from appearance alone, particularly in an older or previously altered property. We check this at survey stage before proceeding, and if there's any doubt, a structural engineer needs to assess the load path and specify what's needed, typically a steel beam, before the wall comes down.
Does the Party Wall Act apply to a new internal partition?
It can, where a new or altered partition sits on or very close to a shared party wall, common in a converted terrace or semi. This is a separate process from the partition build itself, involving formal notice to the neighbouring owner and, in some cases, a party wall surveyor, and it sits with the property owner to arrange, though we'll flag at survey stage where it's likely to be relevant.
How long does it take to build a new partition wall?
A single stud partition, including boarding and jointing, is often completed within a few days, though drying time for the skim coat, typically a few days to a week, and any electrical first-fix will affect the overall programme before the room is ready for paint.
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