Roof lanterns for Gerrards Cross: the essentials
Roof lanterns in Gerrards Cross means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the SL9 district and the rest of Buckinghamshire, with a survey before any price is fixed.
Many South East homes have been extended more than once, and an old dome over an earlier extension is often due for replacement. Roof lanterns suit rooms that need height as well as light.
Gerrards Cross sits about 3 km from Chalfont St Peter and 7 km from Uxbridge, and we cover the whole SL9 postcode district and the roads in between.
Choices for your Gerrards Cross project
- LED lighting in the plaster box
- Solar-control or self-cleaning glass
- Opening vents with electric control
- Aluminium or uPVC systems
- Internal and external colours
- Classic look that suits period and modern homes
- Adds visual height to a single-storey room
Things we check at survey
- Needs a strong, level kerb or upstand
- Larger lanterns may need a steel or timber ring beam
Planning, building control and Gerrards Cross
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. 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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
What do roof lanterns cost in Gerrards Cross?
These are typical supply-and-fit ranges. For an address in Gerrards Cross, 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 Gerrards Cross address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Gerrards Cross
Roof lanterns in Gerrards Cross: questions
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 they leak?
Modern lanterns are sealed systems. Leaks usually trace back to the kerb or roof membrane detail, which we form and check ourselves.
How big can a lantern be?
Aluminium systems go to around three by six metres in standard ranges; larger sizes are made to order.
Will I need planning permission in Gerrards Cross?
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.
Is the survey in Gerrards Cross free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
