How we approach bespoke & shaped rooflights in Penzance
For Penzance homes and buildings we offer bespoke & shaped rooflights: triangular, angled, curved and multi-pane rooflights made to measure. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Western coasts take wind-driven rain, so we pay close attention to upstand height and flashing laps on exposed roofs. Typical uses for bespoke & shaped rooflights include openings that standard sizes do not fit.
Penzance is around 38 km from Truro, and we survey and fit throughout that part of Cornwall, including the TR18 district.
Options we can specify in Penzance
- Sloped or monopitch rooflights
- Corner and wrap-around glazing
- Triangular and trapezoid panes
- Multi-pane butt-jointed runs
- Concealed or slim frames
- Works with architects and builders
- Glass shaped to the architecture
Things we check at survey
- Structural support must be designed in
- Longer lead times and no returns on made-to-measure glass
Do you need permission in Penzance?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Guide prices for Penzance
These are typical supply-and-fit ranges. For an address in Penzance, 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 |
|---|---|---|
| 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Bespoke & shaped rooflights near Penzance
More we do in Penzance
Common questions
Why does bespoke take longer?
Each unit is drawn, checked and manufactured to order.
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.
Will I need planning permission in Penzance?
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.
Is the survey in Penzance free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
