Glass Balustrade Cost Per Metre UK — Free Calculator + Price Guide
A glass balustrade in the UK costs £200–£600 per linear metre supplied and installed, depending on the system. Framed post-and-rail systems sit at the lower end, frameless channel-fixed systems at the upper end, and supply-only DIY kits start from around £135/m. At Continox, a fully installed glass balustrade starts at £350 per metre for a framed system and £450 per metre for frameless — with toughened laminated glass, structural compliance to BS 6180 and professional installation included. This guide includes a free interactive calculator that estimates your project cost by system, glass specification, location and run length, plus a full breakdown of every factor that moves the price.
Frameless glass balustrade installation by Continox — 12mm toughened laminated glass, channel-fixed, from £450 per linear metre installed.
Glass Balustrade Cost Calculator
Adjust the options below — the price updates instantly. Based on UK supply & install rates.
Glass balustrades in the UK cost £200–£600 per linear metre supplied and installed. The main price drivers are: system type (framed cheapest, frameless channel most expensive), glass specification (10mm toughened baseline; 17.5mm+ toughened laminated adds 30–45%), location (external installations need marine-grade fixings and weather-rated glass), fixing surface (porcelain and stone require diamond drilling), run length (longer runs earn better per-metre rates; short runs carry minimum charges), and corners (each 90° turn adds fabrication cost). For a typical 6m internal staircase and landing run in frameless glass, expect £2,700–£3,800 installed.
Cost Per Metre by System Type
The single biggest pricing decision is the system — how the glass is held. The less metal you see, the thicker and more structural the glass has to be, and the more precise the installation. That's why the frameless look costs the most per metre: the glass panel itself is doing all the structural work.
| System | Installed / Metre | Supply-Only / Metre | Best For |
|---|---|---|---|
| Framed post & rail | £350 – £450 | £135 – £250 | Budget projects, decking, long external runs |
| Semi-frameless | £300 – £400 | £150 – £280 | Balconies where posts are acceptable |
| Frameless spigot | £380 – £520 | £200 – £330 | Decking & raised platforms (drainage-friendly) |
| Frameless channel | £450 – £600 | £280 – £420 | Staircases, landings, premium interiors |
| Curved / structural glass | £800 – £1,200+ | Bespoke only | Feature staircases, commercial atriums |
Why Continox pricing starts at £350/m framed and £450/m frameless: our per-metre rates include toughened laminated glass as standard (not the 10mm monolithic toughened many suppliers quote as a headline price), a free site survey, structural compliance to BS 6180, and installation by our in-house team. When comparing quotes, always check what glass specification and what scope the per-metre figure actually covers — a £200/m quote for 10mm toughened supply-only is not the same product as a £450/m installed laminated frameless system. Full details on our glass balustrade page.
What Drives the Cost — 6 Factors That Matter
Two identical-length balustrades can differ in price by a factor of three. These six variables explain almost all of the difference.
Framed systems use posts and a top rail to carry the loads, so the glass is an infill panel — thinner, cheaper, easier to install. Frameless systems remove the posts entirely; the glass is fixed in a continuous base channel or on spigots, and the panel itself must resist the full BS 6180 line load. That means thicker laminated glass, heavier-duty fixings, and millimetre-precise installation. The visual payoff of frameless — an uninterrupted view and maximum light flow — is exactly what costs the extra £100–£150 per metre.
Glass is the biggest material cost, and thickness scales the price fast. 10mm toughened is the entry specification for framed systems with a handrail. 12mm toughened is the staircase standard. Toughened laminated glass — two panes bonded with a PVB or SGP interlayer — costs 20–45% more per square metre but stays in place if a pane breaks, which is why it's required for frameless installations without a handrail guarding drops over 600mm. Tinted, low-iron ("extra clear") and satin-frosted glass each add a further premium of 10–25%.
| Glass Spec | Cost Impact | Typical Use |
|---|---|---|
| 10mm toughened | Baseline | Framed systems with handrail, internal |
| 12mm toughened | +5 – 10% | Staircase balustrades with handrail |
| 13.5mm toughened laminated | +15 – 20% | Frameless internal, fail-safe spec |
| 17.5mm toughened laminated | +30 – 35% | Frameless without handrail, drops over 600mm |
| 21.5mm toughened laminated | +40 – 50% | External, exposed or commercial loading |
The specification trap in cheap quotesThe most common reason one quote is hundreds of pounds per metre cheaper than another is glass specification, not efficiency. A quote based on 10mm monolithic toughened glass for a frameless, handrail-free balustrade guarding a staircase or balcony is quoting a non-compliant system — under BS 6180, that configuration requires toughened laminated glass. Continox quotes laminated glass as standard on every balustrade, internal and external. Full compliance detail in our glass balustrade regulations guide.
The regulations are the same indoors and out — what changes is the hardware needed to meet them for decades. External balustrades need 316 marine-grade stainless steel fixings rather than standard 304 grade (rain, frost and coastal salt corrode standard stainless), weather-sealed channel systems, and in exposed or elevated locations the glass must resist wind loading on top of the barrier loads. Externally, guarding height also rises from 900mm to 1,100mm, which means taller — and heavier — panels. Budget roughly 10–15% more per metre for an external installation of the same system.
Fixing into timber or masonry is routine. Fixing through porcelain tiles, granite or composite decking requires diamond drilling — slow, specialist work that adds £30–£60 per fixing point. Structural steel needs pre-drilled or welded connection details agreed with the fabricator. And access matters: an upper-floor balcony needing scaffold or a tower adds £300–£800 to the project regardless of its length. This is why per-metre rates are always indicative — the surface under the balustrade can move the price more than the balustrade itself.
Point fixings on toughened laminated glass — the fixing detail and substrate determine a large share of the installation cost.
Per-metre rates fall as runs get longer — setup, survey, delivery and minimum-charge costs are spread over more metres. A 3m run might cost £550/m effective; the same system over 20m might come in under £420/m. Corners work the other way: every 90° turn needs mitred channel ends or corner posts, an extra panel cut, and additional fixings — typically £100–£180 per corner. A wraparound terrace with four corners costs meaningfully more per metre than a straight run of the same total length.
Installation labour varies by region in the same pattern as all trades: London and the M25 belt run 12–18% above the national average, the South-East sits at baseline, and the Midlands, North, Scotland and Wales typically run 5–10% below. Glass and hardware cost the same everywhere — the regional variable is labour, transport and trade overheads. For supply-only orders, region barely matters beyond delivery cost.
Real-World Cost Scenarios
Three typical UK glass balustrade projects with realistic all-in figures, based on real Continox enquiries and installations.
6 linear metres of frameless channel-fixed balustrade on a staircase and landing. 13.5mm toughened laminated glass, slim stainless handrail, one corner. The most common residential upgrade we install.
8 linear metres of external frameless balustrade at 1,100mm height. 17.5mm toughened laminated glass, 316-grade channel, two corners, first-floor access. Weather-rated throughout.
12 linear metres of spigot-fixed frameless glass around a raised deck. 15mm toughened laminated glass, three corners, fixings into the deck subframe. Long-run rate keeps the per-metre cost down.
Supply-Only vs Supply & Install — The Real Comparison
Supply-only kits are the cheapest headline number in this market, and for a straight decking run fitted by a competent tradesperson they can be good value. For staircases, balconies and anything frameless, the installation is where the compliance lives — the fixings, the substrate assessment and the load path are what Building Control and BS 6180 actually care about.
| Criterion | Supply-Only Kit | Local Glazier | Continox Supply & Install |
|---|---|---|---|
| Per-metre price | £135 – £330 | £250 – £450 | £350 – £600 |
| Site survey | None (you measure) | Basic | Full survey + substrate check |
| Glass specification | Often 10mm toughened | Varies by quote | Toughened laminated standard |
| BS 6180 load compliance | Your responsibility | Sometimes documented | Documented on every project |
| Measurement risk | Yours — wrong panel, your cost | Shared | Ours — fixed price |
| Warranty | Materials only | Varies | Materials + installation |
When supply-only makes sense: straight external decking runs on a timber subframe, ground-level installations guarding drops under 600mm, or projects where a builder is already on site and experienced with the specific system. When supply & install makes sense: staircases, any frameless system, external balconies at height, porcelain or stone surfaces, and any installation that Building Control will inspect — which includes new balconies and most staircase work.
Hidden Costs — What the Per-Metre Price Misses
Per-metre pricing is a useful comparison tool, but the items below appear on real invoices and rarely appear in headline rates. On cheap quotes they surface later as extras; on a proper fixed-price quote they're itemised from the start.
| Hidden Cost | Typical Range | What It Covers |
|---|---|---|
| Minimum charge (short runs) | £150 – £400 | Survey, delivery and setup on runs under ~4m |
| Diamond drilling | £30 – £60 / fixing | Fixing through porcelain, granite or stone |
| Structural preparation | £200 – £800 | Reinforcing the floor edge or deck subframe to take the loads |
| Scaffold / tower access | £300 – £800 | Upper-floor balconies and external elevations |
| Panel replacement (mismeasure) | £200 – £600 / panel | Re-cutting a toughened laminated panel — cannot be trimmed on site |
| Handrail upgrade | £50 – £90 / m | Slim stainless or oak handrail added to the glass line |
Continox quotations itemise all of the above on a single fixed price — survey, glass, hardware, drilling, access and installation — with no additions mid-project. For the process, see our free quotation page.
Don't Forget — Regulations That Affect the Price
Glass balustrades are safety barriers under the Building Regulations, and the compliance requirements directly shape the cost. Three rules matter most. Guarding height: 900mm minimum on internal stairs and landings, 1,100mm on external balconies and roof terraces — taller panels mean more glass per metre. Load resistance: under BS 6180, a residential balustrade must resist a horizontal line load of 0.74kN/m — this determines the glass thickness and fixing specification, and it's the reason frameless systems need structural glass. The handrail rule: where a balustrade guards a drop over 600mm and no handrail is fitted, the glass must be toughened laminated so the barrier stays in place if a pane fails.
Commercial and public-access installations carry higher load requirements (up to 3.0kN/m) and need a structural engineer's assessment — which is why commercial per-metre rates run 30–60% above residential. For the full rulebook, including the 100mm sphere rule and Building Control sign-off, see our glass balustrade regulations guide and, for staircase-specific dimensions, the UK staircase regulations guide.
Balustrade + new staircase? Price them togetherIf the balustrade is part of a staircase replacement, it's almost always cheaper to commission both as one project — the balustrade is engineered into the staircase structure rather than retrofitted, and one survey, one installation team and one Building Control liaison cover everything. A Continox bespoke staircase includes the full frameless glass balustrade in the headline price — see the bespoke staircase cost guide for the combined figures.
Glass Balustrade Cost — FAQ
Common questions from UK homeowners about glass balustrade pricing.
Free Survey + Fixed-Price Quote
Free on-site survey across the UK, toughened laminated glass as standard, BS 6180 compliance documented on every project, fixed-price quotation within 24 hours. Framed from £350/m, frameless from £450/m — supplied and installed by Continox.