What do glass links & glass box roofs in Sidcup involve?
We handle glass links & glass box roofs across Greater London, including Sidcup. In short: frameless glass links joining old and new buildings. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. Typical uses for glass links & glass box roofs include joining a period house to a new extension or annexe.
Jobs in Sidcup 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.
Options we can specify in Sidcup
- Frameless sliding or pivot doors
- Frameless or slim-framed glass
- Concealed gutters and drainage
- Solar-control and low-iron glass
- Structural glass beams and fins
- Visually light connection between buildings
- Bright circulation space
Before you order: points to check
- Abutments with old masonry need careful weathering
- Structural calculations are part of the design
Planning, building control and Sidcup
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.
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. 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.
Read the planning permission guide before you commit to a design.
What do glass links & glass box roofs cost in Sidcup?
These are typical supply-and-fit ranges. For an address in Sidcup, 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 |
|---|---|---|
| Fully frameless link with glass beams | £20,395 – £35,995 | £16,995 – £29,995 |
| Glass roof and glazed sides Typical | £13,195 – £20,395 | £10,995 – £16,995 |
| Glass roof between existing walls | £9,595 – £13,195 | £7,995 – £10,995 |
What happens next
- Tell us what you have. Send the DA14 postcode, a rough size and a couple of photos.
- 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
More we do in Sidcup
Glass links & glass box roofs in Sidcup: questions
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
Do glass links need planning permission?
Often, yes — and listed building consent if either building is listed. We can provide drawings and product data for your application.
How is the glass joined to the old wall?
Usually by a slim channel or flashing set into the masonry, sealed and weathered so the old wall can move without cracking the glass seal.
Is the survey in Sidcup free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Can you work alongside my builder in Sidcup?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
