What do flat rooflights in Eltham involve?
Flat rooflights in Eltham means fixed double or triple glazed rooflights for flat roofs and extensions. We cover the SE9 district and the rest of Greater London, with a survey before any price is fixed.
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. Flat rooflights suit kitchen extensions, side returns and flat-roofed back rooms.
Jobs in Eltham are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Specification options
- Rain sensor if paired with an opening unit
- Solar-control or self-cleaning outer pane
- Integral or fitted blinds
- Square, rectangular or long-format sizes
- Frame colours: anthracite, black, white or RAL
- Double or triple glazed with a warm-edge spacer
- Fixed units are simple, quiet and low-maintenance
Things we check at survey
- The roof membrane must be dressed up the upstand before the unit goes on
- New openings in an existing roof need a structural check on joists
Do you need permission in Eltham?
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
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.
Our planning guide covers each nation in more detail.
What do flat rooflights cost in Eltham?
These are typical supply-and-fit ranges. For an address in Eltham, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or triple glazed (1500 × 2500 mm and up) | £2,395 – £4,195 | £1,995 – £3,495 |
| Mid-size double glazed (1000 × 2000 mm) Typical | £1,675 – £2,395 | £1,395 – £1,995 |
| Small double glazed (up to 1000 × 1000 mm) | £1,195 – £1,795 | £995 – £1,495 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Eltham address.
- Measure and check. A surveyor visits Eltham, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Flat rooflights near Eltham
Related work in Eltham
Questions about flat rooflights in Eltham
Can you fit into my existing flat roof?
Yes. We form a new opening, trim the joists, build and waterproof an upstand and make good the ceiling. A survey confirms the joist direction and roof build-up first.
Double or triple glazing?
Double glazing suits most domestic jobs. Triple glazing improves thermal performance and cuts noise from rain, which is worth it over bedrooms or where the energy calculation is tight.
Can a flat rooflight be walked on?
Not unless it is designed as a walk-on unit with structural laminated glass. A standard flat rooflight is for light only — if the roof is used as a terrace, choose a walk-on rooflight instead.
Is the survey in Eltham free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
How do I book a survey in Eltham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
