Glass links & glass box roofs in Lewisham: what is involved?
For Lewisham 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.
Jobs in Lewisham 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 Lewisham
- Frameless or slim-framed glass
- Frameless sliding or pivot doors
- Concealed gutters and drainage
- Solar-control and low-iron glass
- Structural glass beams and fins
- Structural glass roof with concealed fixings
- Designed around the existing building
Before you order: points to check
- Listed building consent or planning permission is commonly needed
- Thermal performance of large glass areas must be calculated
Planning and building rules for Lewisham
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. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Lewisham
Prices below are shown including and excluding VAT. In Lewisham, 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 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Lewisham address.
- Measure and check. A surveyor visits Lewisham, measures and checks structure and access.
- 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.
Glass links & glass box roofs near Lewisham
Other services in Lewisham
Questions about glass links & glass box roofs in Lewisham
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.
How long does a link take?
Design and manufacture are the long part. Fitting is often two to five days.
Will I need planning permission in Lewisham?
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.
Do I need to be at home for the survey in Lewisham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
