What do roof lanterns in Redruth involve?
Roof lanterns in Redruth means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the TR15 district and the rest of Cornwall, with a survey before any price is fixed.
Holiday lets and second homes across the South West often want roof windows with blinds and remote opening for when the house is empty. Think of roof lanterns for rooms that need height as well as light.
Neighbouring towns include Camborne (6 km) and Truro (13 km). We offer a survey date when we reply to your enquiry.
Choices for your Redruth project
- Internal and external colours
- LED lighting in the plaster box
- Aluminium or uPVC systems
- Opening vents with electric control
- Solar-control or self-cleaning glass
- Slim aluminium bars, more glass
- 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 Redruth
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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Redruth
These are typical supply-and-fit ranges. For an address in Redruth, 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 |
|---|---|---|
| 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 Redruth address.
- Measure and check. A surveyor visits Redruth, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Redruth
Roof lanterns in Redruth: questions
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.
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 Redruth free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Will I need planning permission in Redruth?
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.
