How we approach glass links & glass box roofs in London
We handle glass links & glass box roofs across Greater London, including London. In short: frameless glass links joining old and new buildings. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
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. Think of glass links & glass box roofs for joining a period house to a new extension or annexe.
We cover all of London and the EC1A district, and nearby Pimlico and Islington.
What you can choose
- Solar-control and low-iron glass
- Structural glass beams and fins
- Heated glass on some systems
- Frameless or slim-framed glass
- Frameless sliding or pivot doors
- Designed around the existing building
- Bright circulation space
What to check first
- Abutments with old masonry need careful weathering
- Listed building consent or planning permission is commonly needed
Consents for glass links & glass box roofs in London
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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. 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 glass links & glass box roofs cost in London?
Guide prices for glass links & glass box roofs in London are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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 |
The process, step by step
- Tell us what you have. Send the EC1A postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits London, 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.
Neighbouring towns
Related work in London
Common questions
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 long does a link take?
Design and manufacture are the long part. Fitting is often two to five days.
Can a glass link be warm enough to use all year?
With insulated glass units, solar control and good detailing, yes — though it will always be brighter and more exposed to temperature swings than a solid room.
How do I book a survey in London?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do I need to be at home for the survey in London?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
