How we approach glass links & glass box roofs in Purley
For Purley homes and buildings we offer glass links & glass box roofs: frameless glass links joining old and new buildings. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
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. Glass links & glass box roofs suit joining a period house to a new extension or annexe.
Purley is around 19 km from central London, and we survey and fit throughout that part of Greater London, including the CR8 district.
Options we can specify in Purley
- Frameless or slim-framed glass
- Heated glass on some systems
- Concealed gutters and drainage
- Frameless sliding or pivot doors
- Structural glass beams and fins
- Can include frameless doors
- Bright circulation space
What to check first
- Thermal performance of large glass areas must be calculated
- Abutments with old masonry need careful weathering
Planning, building control and Purley
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. 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.
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. 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.
Guide prices for Purley
Prices below are shown including and excluding VAT. In Purley, 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 |
From enquiry to finished job
- Tell us what you have. Send the CR8 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Purley, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Glass links & glass box roofs near Purley
More we do in Purley
Glass links & glass box roofs in Purley: questions
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.
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.
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.
Do you fit glass links & glass box roofs in Purley?
Yes. We survey and fit glass links & glass box roofs in Purley and across Greater London. Send your postcode and we will offer a survey date when we reply.
Will I need planning permission in Purley?
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.
