Glass Juliet Balcony Costs & Pricing Guide
How much does a glass Juliet balcony cost? A practical UK guide to what affects the price — with an online cost estimator by style and opening width.
How Much Does a Glass Juliet Balcony Cost?
A glass Juliet balcony is a fixed safety barrier fitted flush to the building face across a door opening. It does not project outwards and provides no standing space — its job is to allow bifold, French, or sliding doors to open fully at height while preventing falls.
Cost is primarily driven by two things: the style of system and the width of the opening. A single-panel frameless Juliet balcony across a narrow French door opening is a very different job to a four-panel button-fixed system spanning a wide set of bifold doors. Glass thickness, fixing method, access conditions, and upper-floor considerations also affect the final price.
Use the cost estimator below for an indicative guide price, then get in touch for a precise quotation. For full details on our Juliet balcony systems, see our Juliet balcony service page.
Estimate Your Juliet Balcony Cost
Select your preferred style and enter your opening width for an indicative guide price. All figures include supply and installation and are inclusive of VAT.
1. Select style
Frameless (Button-Fixed)
Aluminium Rail — Elegance
Balconnette System
Framed Stainless Steel
2. Opening width
Measure the full width of the door opening from reveal to reveal. Standard single-door openings are typically 900–1200mm. Bifold door openings are typically 1800–3600mm.
3. Options (optional)
Indicative guide price
Enter your email to reveal your estimate
incl. VAT • supply & installation • subject to final survey and specification
This is a guide price only — not a guaranteed quotation. Prices can vary based on access conditions, fixing substrate, glass thickness required by building control, and site-specific factors confirmed at survey. Contact us for an accurate quotation.
What Affects the Cost of a Glass Juliet Balcony?
Opening Width
The biggest single cost factor. A narrow French door opening (900–1200mm) may only need one glass panel. A wide bifold door opening (2400–4500mm) needs multiple panels to span the full width — more glass, more fixings, more installation time.
System Style
Frameless button-fixed systems cost more than framed or rail systems. The glass specification required for point-fixed frameless systems (typically 17.5mm or 21.5mm laminated) is heavier and more expensive than the glass used in framed or rail systems.
Glass Specification
Juliet balconies are classified as external guarding under BS6180 and must meet the barrier loading requirement. Wider openings and frameless systems require thicker laminated glass — 17.5mm for most installations, 21.5mm for spans over 2.4m or where building control requires it.
Fixing Method & Substrate
Button-fixed and framed systems fix to the structural fabric of the building — typically masonry or timber frame — above and below the door reveal. Fixing into brick or block is straightforward. Timber frame, render, or composite cladding may require additional consideration at survey.
Upper Floor Access
Ground floor or easily accessible first-floor work is straightforward. High-level installations — second floor or above — may require scaffolding or specialist access equipment. We assess access at survey and include any access costs in the quotation.
Powder Coating & Finish
Standard finishes are satin stainless steel, brushed aluminium, or mill finish. Powder coating metalwork to a RAL colour (to match window frames, render, or other elements) is available at an additional cost — typically £60–£120 for a Juliet balcony depending on size.
Juliet Balcony Styles — What Are the Options?
Frameless — Button / Standoff Fixed
The cleanest look. Laminated glass panels are drilled and fixed using stainless steel standoff buttons — no frame, no rail, just glass. Glass thickness is automatically specified by opening width: 17.5mm up to 1800mm, 21.5mm above. Maximum opening width: 3000mm. For wider openings, a Balconnette system is required.
Guide price: from £900 (single door). Wide openings to 3000mm: £1,350–£1,750+.
Aluminium Rail — Elegance
Slim vertical aluminium rails with laminated glass infill — the Elegance range. The rail profile is narrow and unobtrusive; when viewed face-on the system is mostly glass. Popular on new-build properties and can be powder coated to any RAL colour to match window frames or render. Handles openings up to 5000mm.
Guide price: from £700 (single door). Wide openings: £1,050–£1,750+.
Balconnette System
A system-engineered Balconnette Juliet balcony — the recommended solution for openings over 3000mm and for wide bifold or multi-door configurations. Horizontal rails and laminated glass infill in a complete engineered kit. Available in a range of finishes and can be powder coated. Handles any opening width.
Guide price: from £750 (single door). Wide multi-panel openings: £1,100–£1,900+.
Framed Stainless Steel
A structural stainless steel frame with 10mm toughened glass infill — the glass spec is fixed for this system type. Robust and durable; well suited to exposed elevations or where a more traditional barrier appearance is preferred. Available in satin or polished stainless steel. Maximum opening width: 2400mm.
Guide price: from £650 (single door). Up to 2400mm: £650–£950+.
How the Process Works
We can provide a tight indicative price range from a few photos and the door opening width — no site visit needed at that stage.
- Send us a photo of the door opening and your measured width — use the estimator above for a rough figure.
- We'll come back with a precise quotation, usually the same day. No visit required at this stage.
- If you're happy with the quote, we'll arrange a free site survey to confirm fixing points, glass spec, and access.
- A deposit of 30–50% is taken on acceptance of the survey-confirmed quotation. Glass is manufactured to order — typically 2–3 weeks lead time.
- Installation is typically completed in one day. The balance is due on completion.
Pricing Guides for Other Services
Frequently Asked Questions — Juliet Balcony Costs
Get a Juliet Balcony Quote
Send us a photo and your door opening width — we'll come back with a precise quotation the same day. No site visit required until you've accepted the quote.