How we approach roof lanterns in Beckenham
Thinking about roof lanterns in Beckenham? The short answer: hipped glass lanterns that lift the ceiling of orangeries and extensions. The longer answer depends on your roof, which is why we survey before we price.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. Think of roof lanterns for orangeries, kitchen-diners and single-storey extensions.
Beckenham sits about 3 km from Bromley and 4 km from Catford, and we cover the whole BR3 postcode district and the roads in between.
Options we can specify in Beckenham
- Rectangular, square or bespoke sizes
- Internal and external colours
- Opening vents with electric control
- Solar-control or self-cleaning glass
- Aluminium or uPVC systems
- Slim aluminium bars, more glass
- Adds visual height to a single-storey room
Things we check at survey
- Plaster-box depth affects how the lantern looks from below
- Larger lanterns may need a steel or timber ring beam
Planning, building control and Beckenham
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.
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.
Roof lanterns prices in Beckenham
Prices below are shown including and excluding VAT. In Beckenham, 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 |
The process, step by step
- Tell us what you have. Send the BR3 postcode, a rough size and a couple of photos.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Roof lanterns near Beckenham
Related work in Beckenham
Common 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.
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 Beckenham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do you fit roof lanterns in Beckenham?
Yes. We survey and fit roof lanterns in Beckenham and across Greater London. Send your postcode and we will offer a survey date when we reply.
