What do glass links & glass box roofs in Northampton involve?
Glass links & glass box roofs in Northampton means frameless glass links joining old and new buildings. We cover the NN1 district and the rest of Northamptonshire, with a survey before any price is fixed.
Many Midlands semis have had a single-storey rear extension added, and a larger flat rooflight or lantern is often the change that makes it feel finished. Typical uses for glass links & glass box roofs include joining a period house to a new extension or annexe.
We cover all of Northampton and the NN1 district, and nearby Wellingborough and Towcester.
Options we can specify in Northampton
- Solar-control and low-iron glass
- Structural glass beams and fins
- Concealed gutters and drainage
- Frameless sliding or pivot doors
- Heated glass on some systems
- Visually light connection between buildings
- Keeps period walls on show
What to check first
- Thermal performance of large glass areas must be calculated
- Listed building consent or planning permission is commonly needed
Planning, building control and Northampton
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. 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.
Glass links & glass box roofs prices in Northampton
Guide prices for glass links & glass box roofs in Northampton 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 NN1 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Northampton
Glass links & glass box roofs in Northampton: 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.
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
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.
Can you work alongside my builder in Northampton?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do I need to be at home for the survey in Northampton?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
