What are bespoke & shaped rooflights?
Our bespoke & shaped rooflights service in Dorset covers triangular, angled, curved and multi-pane rooflights made to measure. We survey every job before fixing the price.
Holiday lets and second homes across the South West often want roof windows with blinds and remote opening for when the house is empty. Barn and chapel conversions in the South West often need bespoke or shaped rooflights to suit the original structure.
Towns in Dorset
Specification options in Dorset
- Triangular and trapezoid panes
- Sloped or monopitch rooflights
- Concealed or slim frames
- Solar-control and low-iron glass
- Multi-pane butt-jointed runs
- Matching solar and thermal performance
- Corner, slope and multi-pane runs
Planning and building rules in England
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. 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.
What do bespoke & shaped rooflights cost in Dorset?
Prices below are shown including and excluding VAT. In Dorset, 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 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.
Do you need my architect's drawings?
They help. We still survey on site, because built openings rarely match drawings exactly.
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.
Do you offer bespoke & shaped rooflights across Dorset?
Yes. We carry out bespoke & shaped rooflights across Dorset, including Bournemouth, Poole, Weymouth.
