Architectural and commercial glass
Juliet balconies
- Free design survey
- In-house building team
- Written quote before anything is ordered
How it's priced
Priced after a free design survey
Every juliet balconies project is designed for its site, so we don't publish a misleading ‘typical’ price.
- 1We visit, measure and talk through what you want
- 2We design it and check planning and Building Regulations
- 3You get a written quote before anything is ordered
Overview
Why juliet balconies?
A Juliet balcony is a glass barrier fixed across a full-height opening on an upper floor, so you can open French doors or a full-height window safely and enjoy the air and view.
We fit frameless glass Juliet balconies, usually alongside new French doors or windows, and price them at survey.
Open doors safely
Guarding across the opening on upper floors.
Frameless glass
Barely there, so the view stays open.
Pairs with French doors
Fitted at the same time as new doors.
No floor space
Adds a balcony feel without a projecting structure.
Priced after a free design survey
Tell us about your project
- A named project manager from the first visit
- Planning and Building Regulations checked for you
- Our own building team for openings and making good
Styles and options
Made to your specification
Styles
- Frameless glass with discreet fixings
- Glass with top rail
Pairs with
- French doors
- Full-height opening windows
Good to know
Planning, regulations and timings
Height and fixing
The barrier must meet Building Regulations guarding heights (typically 1,100 mm) and be fixed into sound structure, which we check at survey.
Planning
A Juliet balcony usually doesn't need planning permission, but check if your home is listed or in a conservation area.
Building Regulations and certification
Replacement windows and doors must meet Building Regulations for energy efficiency, safety glass, ventilation and fire escape. Each installation is certified through a competent person scheme such as FENSA, or signed off by building control, and the certificate is yours to keep for when you sell.
Questions
Juliet balconies: your questions answered
How much does a Juliet balcony cost?
We price Juliet balconies at survey, usually alongside new French doors — a pair of French doors costs from £1,800–£3,000 in uPVC. Indicative, supplied and installed in London and the South East, including VAT; prices updated 11 October 2026. A survey confirms the final figure.
How high does a Juliet balcony need to be?
Typically at least 1,100 mm above floor level, fixed into sound structure.
Do I need planning permission for a Juliet balcony?
Usually not, because nothing projects from the building. Listed buildings and conservation areas can be different.
Can I add a Juliet balcony to existing doors?
Often, yes, if there's sound structure to fix into either side of the opening.
Keep exploring
Related products and services
Shopfronts
Aluminium shopfronts and entrances for retail and offices.
Glass partitions
Glazed office and home partitions that divide space without losing light.
Glass balustrades
Frameless and post-fixed glass balustrades for stairs, balconies and terraces.
Brands we install
REHAU, SMART, AluK, Schüco, Cortizo, VELUX, FAKRO and Cambridge Skylights — and the tier each sits in.
Begin your project
Talk to us about your project
A free design survey, a written quote before anything is ordered, and one named project manager from start to finish.