Frameless structural rooflights in Sevenoaks: what is involved?
Our frameless structural rooflights service in Sevenoaks covers minimal glass rooflights with no visible frame from inside. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Think of frameless structural rooflights for architect-led extensions and long slots of light over islands or along party walls.
Neighbouring towns include Tonbridge (10 km) and Orpington (13 km). We offer a survey date when we reply to your enquiry.
Options we can specify in Sevenoaks
- Low-iron extra-clear glass
- Solar-control coatings
- Butt-jointed runs for long openings
- Heated glass on some ranges
- Shadow-gap or plastered reveal
- Double or triple glazed structural units
- Clean modern detail for architect-led schemes
What to check first
- Structural glass specification comes from the manufacturer
- Large panes need lifting gear and access planning
Do you need permission in Sevenoaks?
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Our planning guide covers each nation in more detail.
What do frameless structural rooflights cost in Sevenoaks?
Guide prices for frameless structural rooflights in Sevenoaks are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Long-format or jointed run | £6,595 – £11,995 | £5,495 – £9,995 |
| Large single pane Typical | £4,795 – £7,195 | £3,995 – £5,995 |
| Standard frameless unit | £3,595 – £4,795 | £2,995 – £3,995 |
The process, step by step
- Tell us what you have. Send the TN13 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Sevenoaks
Common questions
Can it open?
Some frameless designs include a sliding or hinged opening element, but most are fixed. Pair with an opening unit if you need ventilation.
Can a frameless rooflight be walked on?
Only if it is specified as a walk-on unit. Most frameless rooflights are for light only.
Is frameless glass as strong as a framed rooflight?
Yes — it is structural glass designed for the job. The support is hidden rather than missing.
Do I need to be at home for the survey in Sevenoaks?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit frameless structural rooflights in Sevenoaks?
Yes. We survey and fit frameless structural rooflights in Sevenoaks and across Kent. Send your postcode and we will offer a survey date when we reply.
