Glass Balustrade Balcony Sevenoaks
Sevenoaks Glass Balustrades designs and installs glass balustrade balconies for properties across Sevenoaks, the surrounding villages, and the wider Kent area. Whether your project is a Juliet balcony on a rear extension or a full-depth balcony with a structural deck, we handle everything from survey through to Building Control sign-off.
Sevenoaks’ hilly terrain means many properties have elevated first floors with garden or countryside views. A glass balustrade on a balcony or large window opening captures those views rather than obscuring them. For elevated properties in Kippington and Ide Hill, with views across the Weald of Kent, a glass balustrade balcony transforms an upstairs room.
Call 01732 444478 to arrange your free site survey.
Juliet Balconies vs Full-Depth Balconies
These are two distinct products. Knowing which applies to your property matters before you get any quotes.
Juliet Balconies
Juliet balconies sit flush against the building. They do not project outward and provide no standing space. Their purpose is safety guarding for a floor-to-ceiling door or large window opening. They create the visual drama of a balcony opening without requiring any structural alteration to the building footprint.
A frameless glass Juliet is the most popular version we install across Sevenoaks. Large Victorian and Edwardian properties in The Vine often have original sash windows at first-floor level that overlook mature garden planting. Replacing a standard sash opening with a floor-to-ceiling door and a Juliet glass balustrade transforms these rooms.
Full-Depth Balconies
Full-depth balconies project from the building and provide a genuine outdoor standing platform. They require a structural deck with glass balustrade guarding around the perimeter. They are a more significant project involving structural calculations and Building Regulations approval.
For elevated properties in Ide Hill, The Vine, and the TN14 villages where the view from first-floor level is a genuine asset, a full-depth balcony is often worth the investment. On Granville Road and neighbouring streets, rear extensions with first-floor balconies and frameless glass guarding are popular at this end of the Sevenoaks market.
Glass Balcony Systems
The frameless system is the most frequently specified for balconies. Glass panels are fixed into a continuous structural channel at the base, with no vertical posts interrupting the view. This system suits both Juliet and full-depth installations.
Glass specification for balconies: 17.5mm or 21.5mm toughened laminated glass. Laminated glass is standard for balcony positions because if a pane is broken, the interlayer holds the fragments in place. For the full technical detail, see our frameless glass balustrades page.
Handrails and Post Systems
All balcony systems can be fitted with a continuous stainless steel handrail above the glass. Building Regulations Part K requires a handrail at 1,100mm above the finished floor level for balconies. We fit handrails as standard on all full-depth balcony installations.
Post-mounted systems use vertical stainless steel posts fixed into the balcony deck at regular intervals, with glass panels clamped to the posts. They offer structural flexibility for complex balcony shapes.
Both types use toughened or toughened laminated glass for the balustrade panels. Fixing systems, post styles, and hardware differ depending on whether the structure is Juliet or full-depth.
Building Regulations, Planning, and Costs
Building Regulations
Any balcony installation with a drop of more than 600mm requires guarding. Building Regulations Part K sets minimum standards: guarding at least 1,100mm above the finished floor level, and resistance to a horizontal load of 0.74kN/m.
Our glass specifications and fixing systems meet these requirements. We coordinate Building Control notification as part of the installation process. Sevenoaks has a conservation area covering parts of the town centre and several surrounding villages. Properties within the conservation area may need consent even for Juliet-style alterations.
Planning Permission
Juliet balconies typically fall within permitted development rights and do not require planning permission. Full-depth projecting balconies almost always require planning permission, particularly on the front or side elevation.
The AONB designation over parts of TN14 and TN15 adds further considerations for properties in Ide Hill and Sevenoaks Weald. Always check with Sevenoaks District Council Planning before committing to a full-depth design.
Typical Costs
Juliet balcony (frameless glass, installed): £1,200 to £2,500 depending on width and glass specification.
Full-depth balcony (glass balustrade guarding only, deck already installed): £180 to £350 per linear metre. A 4-metre perimeter runs approximately £1,500 to £2,800.
Full-depth balcony (complete including structural deck): typically £8,000 to £20,000 and above. We work alongside structural engineers and contractors and can advise on the wider project scope. Call 01732 444478 for a precise quote after site survey.
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Glass Balustrade Balcony FAQs
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