How we approach frameless structural rooflights in Dulwich
Thinking about frameless structural rooflights in Dulwich? The short answer: minimal glass rooflights with no visible frame from inside. The longer answer depends on your roof, which is why we survey before we price.
Party walls are a fact of life in London terraces, and rooflights close to a shared wall need detailing that keeps the neighbour's side dry too. In Dulwich, as anywhere, frameless structural rooflights are the usual choice for architect-led extensions and long slots of light over islands or along party walls.
We work across Greater London, including Dulwich, and in neighbouring towns such as Brixton and Peckham. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Shadow-gap or plastered reveal
- Low-iron extra-clear glass
- Triple glazing
- Heated glass on some ranges
- Solar-control coatings
- Solar-control and low-iron glass options
- Can run along party walls and side returns
Before you order: points to check
- Structural glass specification comes from the manufacturer
- Tolerances are tight — the opening must be built square and to size
Do you need permission in Dulwich?
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.
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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Our planning guide covers each nation in more detail.
What do frameless structural rooflights cost in Dulwich?
Prices below are shown including and excluding VAT. In Dulwich, 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 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Dulwich address.
- Measure and check. A surveyor visits Dulwich, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Related work in Dulwich
Questions about frameless structural rooflights in Dulwich
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.
Does it cost more?
Usually, because the glass is larger and heavier and the finish needs tighter tolerances. The price table shows typical ranges.
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.
Do you fit frameless structural rooflights in Dulwich?
Yes. We survey and fit frameless structural rooflights in Dulwich and across Greater London. Send your postcode and we will offer a survey date when we reply.
Will I need planning permission in Dulwich?
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.
