How we approach glass links & glass box roofs in Portsmouth
Our glass links & glass box roofs service in Portsmouth covers frameless glass links joining old and new buildings. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Typical uses for glass links & glass box roofs include listed and period buildings where the old wall should stay visible.
Jobs in Portsmouth 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 Portsmouth
- Structural glass beams and fins
- Solar-control and low-iron glass
- Frameless or slim-framed glass
- Concealed gutters and drainage
- Heated glass on some systems
- Designed around the existing building
- Visually light connection between buildings
Things we check at survey
- Listed building consent or planning permission is commonly needed
- Abutments with old masonry need careful weathering
Planning, building control and Portsmouth
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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 Portsmouth?
Guide prices for glass links & glass box roofs in Portsmouth 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 |
How the job runs
- Tell us what you have. Send the PO1 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Glass links & glass box roofs near Portsmouth
More we do in Portsmouth
Glass links & glass box roofs in Portsmouth: questions
How long does a link take?
Design and manufacture are the long part. Fitting is often two to five days.
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.
Do I need to be at home for the survey in Portsmouth?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Portsmouth?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
