What do glass links & glass box roofs in Holloway involve?
We handle glass links & glass box roofs across Greater London, including Holloway. In short: frameless glass links joining old and new buildings. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Think of glass links & glass box roofs for joining a period house to a new extension or annexe.
Jobs in Holloway 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.
Choices for your Holloway project
- Solar-control and low-iron glass
- Frameless sliding or pivot doors
- Concealed gutters and drainage
- Structural glass beams and fins
- Heated glass on some systems
- Bright circulation space
- Can include frameless doors
Things we check at survey
- Listed building consent or planning permission is commonly needed
- Thermal performance of large glass areas must be calculated
Do you need permission in Holloway?
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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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 Holloway?
Prices below are shown including and excluding VAT. In Holloway, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
How the job runs
- Tell us what you have. Send the N7 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Holloway
Common questions
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
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 structural glass safe?
Structural glass is laminated so it stays in place if a ply breaks. The manufacturer designs it for the loads involved.
Is the survey in Holloway 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 Holloway?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
