What do roof lanterns in Whitstable involve?
Roof lanterns in Whitstable means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the CT5 district and the rest of Kent, 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. Roof lanterns suit orangeries, kitchen-diners and single-storey extensions.
Whitstable sits about 7 km from Herne Bay and 10 km from Canterbury, and we cover the whole CT5 postcode district and the roads in between.
Options we can specify in Whitstable
- Aluminium or uPVC systems
- Internal and external colours
- Solar-control or self-cleaning glass
- Opening vents with electric control
- Rectangular, square or bespoke sizes
- Classic look that suits period and modern homes
- Light from every angle across the day
Before you order: points to check
- Plaster-box depth affects how the lantern looks from below
- Needs a strong, level kerb or upstand
Planning and building rules for Whitstable
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.
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Roof lanterns prices in Whitstable
Guide prices for roof lanterns in Whitstable 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 |
The process, step by step
- Tell us what you have. Send the CT5 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Nearby towns
Related work in Whitstable
Roof lanterns in Whitstable: questions
Aluminium or uPVC?
Aluminium gives slimmer bars and a longer life; uPVC costs less. We fit both.
Can a lantern go on an existing extension?
Yes, if the flat roof structure can be opened up and trimmed. We check joists and the roof build-up at survey.
Do roof lanterns get hot?
They can in summer if clear glass is used on a south-facing roof. Solar-control glass and an opening vent make a big difference.
Do I need to be at home for the survey in Whitstable?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Whitstable?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
