What do roof lanterns in Letchworth Garden City involve?
Roof lanterns in Letchworth Garden City means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the SG6 district and the rest of Hertfordshire, with a survey before any price is fixed.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. Think of roof lanterns for orangeries, kitchen-diners and single-storey extensions.
Neighbouring towns include Hitchin (5 km) and Stevenage (9 km). We offer a survey date when we reply to your enquiry.
Specification options
- Rectangular, square or bespoke sizes
- Internal and external colours
- Opening vents with electric control
- LED lighting in the plaster box
- Solar-control or self-cleaning glass
- Adds visual height to a single-storey room
- Classic look that suits period and modern homes
Things we check at survey
- Some designs project above the roof enough to affect planning on certain houses
- Plaster-box depth affects how the lantern looks from below
Do you need permission in Letchworth Garden City?
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. 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.
Our planning guide covers each nation in more detail.
Guide prices for Letchworth Garden City
Guide prices for roof lanterns in Letchworth Garden City are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or bespoke aluminium lantern | £5,995 – £10,795 | £4,995 – £8,995 |
| Mid-size aluminium lantern (2 × 3 m) Typical | £3,955 – £5,995 | £3,295 – £4,995 |
| Small lantern (1 × 2 m) | £2,995 – £3,955 | £2,495 – £3,295 |
From enquiry to finished job
- Tell us what you have. Send the SG6 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Letchworth Garden City, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Roof lanterns near Letchworth Garden City
Related work in Letchworth Garden City
Questions about roof lanterns in Letchworth Garden City
Do they leak?
Modern lanterns are sealed systems. Leaks usually trace back to the kerb or roof membrane detail, which we form and check ourselves.
Aluminium or uPVC?
Aluminium gives slimmer bars and a longer life; uPVC costs less. We fit both.
Roof lantern or flat rooflight?
A lantern adds height and sky from all sides; a flat rooflight is lower-profile and cleaner from outside. Our guide compares them in detail.
Will I need planning permission in Letchworth Garden City?
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.
Can you work alongside my builder in Letchworth Garden City?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
