Glass links & glass box roofs in Grantham: what is involved?
Our glass links & glass box roofs service in Grantham 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.
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. Glass links & glass box roofs suit joining a period house to a new extension or annexe.
Jobs in Grantham 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.
Specification options
- Frameless or slim-framed glass
- Heated glass on some systems
- Concealed gutters and drainage
- Solar-control and low-iron glass
- Structural glass beams and fins
- Structural glass roof with concealed fixings
- Visually light connection between buildings
Before you order: points to check
- Structural calculations are part of the design
- Listed building consent or planning permission is commonly needed
Do you need permission in Grantham?
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. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
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.
See our building regulations guide for U-values, glazing limits and self-certification.
What do glass links & glass box roofs cost in Grantham?
These are typical supply-and-fit ranges. For an address in Grantham, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Other services in Grantham
Glass links & glass box roofs in Grantham: questions
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.
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
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 you fit glass links & glass box roofs in Grantham?
Yes. We survey and fit glass links & glass box roofs in Grantham and across Lincolnshire. Send your postcode and we will offer a survey date when we reply.
How do I book a survey in Grantham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
