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Kent · England

Glass Roofs in Kent

Basements and lower floors in Kent can borrow daylight from above through walk-on glass floor panels and rooflights set into a terrace or pavement-level roof.

  • Guide from £1,095 per m²
  • 23 towns covered
  • Postcode areas BR, CT, DA, ME, TN

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Glass roof extension in Kent

A new glass roof or walk-on panel is building work that normally needs building regulations approval through building control, covering structure, energy performance and, close to a boundary, fire performance. Planning permission may also be needed depending on the extension and the property, so check with the council.

A structural glass roof replaces most or all of a roof with large glass units carried on glass beams, slim steel or aluminium supports. Side-return extensions often use a single run of glass from the house wall to the boundary, giving a bright kitchen without the ridge and bars of a framed roof lantern.

Glass floors and walk-on rooflights bring daylight into basements, lower floors and rooms beneath terraces. Each panel sits on a continuous, level support with gaskets or setting blocks so the glass never touches metal or masonry directly, and the structure below is checked by an engineer.

Fixed frameless rooflights sit on a flat roof upstand with the glass edge overhanging the kerb, so from inside you see only sky and plaster. The upstand must be level, insulated and weathered into the roof covering, and the roof needs a fall so water drains off the glass.

Glass roof over a side-return kitchen extension with an exposed brick wall

What applies in Kent

Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.

Replacing windows and doors with similar ones is usually permitted development for houses in England. Flats, listed buildings and homes in conservation areas or covered by an Article 4 direction can need permission, so check with the council first.

Kent has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Glass roofs near the coast collect salt film that self-cleaning coatings may not fully remove, so occasional rinsing helps. Exposed sites face higher wind uplift, which affects glass thickness and fixings, and any metal supports need coatings or grades suited to salt air.

Rural sites may have long or narrow access tracks that limit crane positions and panel sizes, so access is surveyed early. Exposed locations face higher wind and snow loads, and leaves and debris from nearby trees mean gutters need regular clearing.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical jobGuide price inc VAT
Frameless glass roof, per m²£1,095 – £1,795
Walk-on glass panel, per m²£1,495 – £2,395

Choosing your glass roofs

Sliding access rooflight

A glazed hatch that slides or hinges open for access to a roof terrace, with weather seals and secure locking.

Glass floor panel

Laminated glass floor sections that let light through to a basement or lower floor, supported on a level, engineered frame.

Fixed frameless rooflight

A flat glass unit bonded to a minimal edge frame on an upstand, giving an unbroken view of the sky from inside.

Glass beams and fins

Laminated glass supporting beams instead of steel, keeping the whole roof transparent where spans and loads allow.

Glass Roofs in Kent: questions

Is a glass roof safe if the glass breaks?

A properly specified glass roof is designed so that a broken pane stays in place. The inner pane is laminated, so fragments remain bonded to the interlayer instead of falling into the room. The glass thickness, supports and edge details are designed for the expected loads, including snow, wind and maintenance access.

How do you stop a glass roof leaking?

A glass roof stays watertight through a fall that lets water run off, weather seals and structural silicone joints between panes, well-detailed flashings at walls and upstands, and clear gutters or outlets. Most leaks start at flashings or blocked drainage rather than the glass. Annual checks of joints and outlets prevent most problems.

Do I need planning permission for a glass roof extension?

It depends on the extension and the property. Some single-storey extensions on houses fall under permitted development, while others need planning permission. Flats, listed buildings and homes in conservation areas or under Article 4 directions have additional controls. Check with your council or an architect early, before the glass is ordered.

What guarantee comes with a glass roof?

Manufacturer guarantees apply to the glass units, coatings and any framing or fixings, and the terms are confirmed in writing. Supports built by others are covered by their own builder's terms. Guarantee terms for our installation are set out in writing with your quote, so you know what is covered and who is responsible before work begins.

Which parts of Kent do you cover for glass roofs?

We cover the whole of Kent, including Maidstone, Gillingham, Chatham, Tunbridge Wells and Folkestone, and postcode areas BR, CT, DA, ME, TN. Building rules for glass roofs here follow the regulations for England. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

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