Frameless structural rooflights for Coulsdon: the essentials
Frameless structural rooflights in Coulsdon means minimal glass rooflights with no visible frame from inside. We cover the CR5 district and the rest of Greater London, with a survey before any price is fixed.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. In Coulsdon, as anywhere, frameless structural rooflights are the usual choice for architect-led extensions and long slots of light over islands or along party walls.
Coulsdon is around 21 km from central London, and we survey and fit throughout that part of Greater London, including the CR5 district.
Options we can specify in Coulsdon
- Butt-jointed runs for long openings
- Low-iron extra-clear glass
- Triple glazing
- Solar-control coatings
- Heated glass on some ranges
- Nothing but glass visible from inside
- Clean modern detail for architect-led schemes
What to check first
- Structural glass specification comes from the manufacturer
- Tolerances are tight — the opening must be built square and to size
Planning and building rules for Coulsdon
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. 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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
Read the planning permission guide before you commit to a design.
What do frameless structural rooflights cost in Coulsdon?
Prices below are shown including and excluding VAT. In Coulsdon, as elsewhere, making good inside and access equipment are the main variables.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Coulsdon address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Related work in Coulsdon
Common questions
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.
Can a frameless rooflight be walked on?
Only if it is specified as a walk-on unit. Most frameless rooflights are for light only.
Will I see the edge of the glass?
From inside, the reveal is finished up to the glass so the edge is hidden. From outside you will see the glass and its edge seal.
Do you fit frameless structural rooflights in Coulsdon?
Yes. We survey and fit frameless structural rooflights in Coulsdon and across Greater London. Send your postcode and we will offer a survey date when we reply.
Will I need planning permission in Coulsdon?
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.
