What do glass links & glass box roofs in Brentwood involve?
Thinking about glass links & glass box roofs in Brentwood? The short answer: frameless glass links joining old and new buildings. The longer answer depends on your roof, which is why we survey before we price.
In the East of England, bungalows and chalet bungalows with large flat-roofed extensions are common, and they often suit a long run of rooflights. In Brentwood, as anywhere, glass links & glass box roofs are the usual choice for listed and period buildings where the old wall should stay visible.
Brentwood is around 30 km from Southend-on-Sea, and we survey and fit throughout that part of Essex, including the CM14 district.
What you can choose
- Structural glass beams and fins
- Solar-control and low-iron glass
- Frameless sliding or pivot doors
- Concealed gutters and drainage
- Frameless or slim-framed glass
- Structural glass roof with concealed fixings
- Visually light connection between buildings
Things we check at survey
- Thermal performance of large glass areas must be calculated
- Listed building consent or planning permission is commonly needed
Do you need permission in Brentwood?
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.
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. 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.
Read the planning permission guide before you commit to a design.
What do glass links & glass box roofs cost in Brentwood?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Brentwood address.
- Measure and check. A surveyor visits Brentwood, 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.
Nearby towns
More we do in Brentwood
Glass links & glass box roofs in Brentwood: 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.
How do I book a survey in Brentwood?
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 Brentwood?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
