How we approach bespoke & shaped rooflights in Harpenden
For Harpenden 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.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. In Harpenden, as anywhere, bespoke & shaped rooflights are the usual choice for openings that standard sizes do not fit.
Harpenden is around 18 km from Watford, and we survey and fit throughout that part of Hertfordshire, including the AL5 district.
Specification options
- Solar-control and low-iron glass
- Sloped or monopitch rooflights
- Triangular and trapezoid panes
- Multi-pane butt-jointed runs
- Concealed or slim frames
- Glass shaped to the architecture
- Corner, slope and multi-pane runs
Things we check at survey
- Longer lead times and no returns on made-to-measure glass
- Large panes need a lifting plan
Planning, building control and Harpenden
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Harpenden
Prices below are shown including and excluding VAT. In Harpenden, 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Harpenden address.
- 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 Harpenden
Other services in Harpenden
Questions about bespoke & shaped rooflights in Harpenden
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.
Why does bespoke take longer?
Each unit is drawn, checked and manufactured to order.
Will a shaped rooflight leak more?
Not if detailed properly — corners and junctions just need more care.
Can you work alongside my builder in Harpenden?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Is the survey in Harpenden free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
