How we approach roof lanterns in Falmouth
Our roof lanterns service in Falmouth covers hipped glass lanterns that lift the ceiling of orangeries and extensions. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. Think of roof lanterns for rooms that need height as well as light.
Jobs in Falmouth are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Specification options
- Solar-control or self-cleaning glass
- Aluminium or uPVC systems
- Rectangular, square or bespoke sizes
- Opening vents with electric control
- Internal and external colours
- Can include opening vents
- Adds visual height to a single-storey room
What to check first
- Some designs project above the roof enough to affect planning on certain houses
- Larger lanterns may need a steel or timber ring beam
Do you need permission in Falmouth?
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.
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.
Read the planning permission guide before you commit to a design.
What do roof lanterns cost in Falmouth?
Prices below are shown including and excluding VAT. In Falmouth, as elsewhere, making good inside and access equipment are the main variables.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Falmouth address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Falmouth
Roof lanterns in Falmouth: questions
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.
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.
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.
Is the survey in Falmouth free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Can you work alongside my builder in Falmouth?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
