How we approach roof lanterns in Mangotsfield
Roof lanterns in Mangotsfield means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the BS16 district and the rest of Gloucestershire, with a survey before any price is fixed.
Western coasts take wind-driven rain, so we pay close attention to upstand height and flashing laps on exposed roofs. Roof lanterns suit orangeries, kitchen-diners and single-storey extensions.
Mangotsfield is around 46 km from Gloucester, and we survey and fit throughout that part of Gloucestershire, including the BS16 district.
What you can choose
- Opening vents with electric control
- Solar-control or self-cleaning glass
- Internal and external colours
- Aluminium or uPVC systems
- LED lighting in the plaster box
- Slim aluminium bars, more glass
- Double or triple glazed with solar-control options
What to check first
- Needs a strong, level kerb or upstand
- Larger lanterns may need a steel or timber ring beam
Planning and building rules for Mangotsfield
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. 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 Mangotsfield?
Prices below are shown including and excluding VAT. In Mangotsfield, 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 |
How the job runs
- Tell us what you have. Send the BS16 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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
Other services in Mangotsfield
Common 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.
How big can a lantern be?
Aluminium systems go to around three by six metres in standard ranges; larger sizes are made to order.
How do I book a survey in Mangotsfield?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Is the survey in Mangotsfield free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
