How we approach frameless structural rooflights in Keswick
We handle frameless structural rooflights across Cumbria, including Keswick. In short: minimal glass rooflights with no visible frame from inside. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Stone and brick terraces are typical across the North West, and roof windows in rear slopes are a common way to light attic rooms. Think of frameless structural rooflights for architect-led extensions and long slots of light over islands or along party walls.
We work across Cumbria, including Keswick, and in neighbouring towns such as Penrith and Workington. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Heated glass on some ranges
- Solar-control coatings
- Low-iron extra-clear glass
- Shadow-gap or plastered reveal
- Triple glazing
- Can run along party walls and side returns
- Solar-control and low-iron glass options
Things we check at survey
- Tolerances are tight — the opening must be built square and to size
- Large panes need lifting gear and access planning
Consents for frameless structural rooflights in Keswick
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. 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 Keswick
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Long-format or jointed run | £6,595 – £11,995 | £5,495 – £9,995 |
| Large single pane Typical | £4,795 – £7,195 | £3,995 – £5,995 |
| Standard frameless unit | £3,595 – £4,795 | £2,995 – £3,995 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Keswick address.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Related work in Keswick
Questions about frameless structural rooflights in Keswick
Can it open?
Some frameless designs include a sliding or hinged opening element, but most are fixed. Pair with an opening unit if you need ventilation.
How is it lifted onto the roof?
Larger panes go up with a vacuum lifter, a hoist or a crane. We plan access at survey.
Will I see the edge of the glass?
From inside, the reveal is finished up to the glass so the edge is hidden. From outside you will see the glass and its edge seal.
Can you work alongside my builder in Keswick?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Is the survey in Keswick free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
