What are bespoke & shaped rooflights?
Bespoke & shaped rooflights in Cornwall means triangular, angled, curved and multi-pane rooflights made to measure. Every quote follows a survey of the roof and the room below.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. Many South West towns mix Georgian and Victorian terraces with modern estates, so the right product differs street by street.
Towns in Cornwall
Options we can specify
- Solar-control and low-iron glass
- Corner and wrap-around glazing
- Concealed or slim frames
- Multi-pane butt-jointed runs
- Triangular and trapezoid panes
- Drawing sign-off before order
- Glass shaped to the architecture
Planning and building rules in England
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. 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. 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.
Guide prices
Prices below are shown including and excluding VAT. In Cornwall, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Multi-pane or corner run | £9,595 – £17,995 | £7,995 – £14,995 |
| Single shaped pane, large Typical | £5,395 – £9,595 | £4,495 – £7,995 |
| Single shaped pane, small | £4,195 – £5,395 | £3,495 – £4,495 |
How the job runs
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Bespoke rooflights in nearby areas
Common questions
Can bespoke units open?
Some can. Shaped glass is usually fixed, combined with a standard opening unit elsewhere.
Will a shaped rooflight leak more?
Not if detailed properly — corners and junctions just need more care.
Can any shape be made?
Most straight-edged shapes can be made in glass, within the manufacturer's size and angle limits. Curved glass is possible but specialist.
Can I cancel a bespoke order?
Made-to-measure goods are excluded from the statutory 14-day cancellation right. As a goodwill gesture you can cancel without charge until we place the order with the manufacturer, and we tell you in writing when that happens.
Will I need planning permission in Cornwall?
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.
