Roof lanterns for Mitcham: the essentials
For Mitcham homes and buildings we offer roof lanterns: hipped glass lanterns that lift the ceiling of orangeries and extensions. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. In Mitcham, as anywhere, roof lanterns are the usual choice for rooms that need height as well as light.
Mitcham is around 12 km from central London, and we survey and fit throughout that part of Greater London, including the CR4 district.
Specification options
- Rectangular, square or bespoke sizes
- Opening vents with electric control
- LED lighting in the plaster box
- Aluminium or uPVC systems
- Internal and external colours
- Classic look that suits period and modern homes
- Double or triple glazed with solar-control options
What to check first
- Plaster-box depth affects how the lantern looks from below
- Needs a strong, level kerb or upstand
Do you need permission in Mitcham?
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Guide prices for Mitcham
These are typical supply-and-fit ranges. For an address in Mitcham, 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 |
The process, step by step
- Tell us what you have. Send the CR4 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Roof lanterns near Mitcham
More we do in Mitcham
Questions about roof lanterns in Mitcham
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.
Do roof lanterns get hot?
They can in summer if clear glass is used on a south-facing roof. Solar-control glass and an opening vent make a big difference.
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.
How do I book a survey in Mitcham?
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 Mitcham?
Yes. We survey and fit roof lanterns in Mitcham and across Greater London. Send your postcode and we will offer a survey date when we reply.
