Roof lanterns for Bushey: the essentials
Thinking about roof lanterns in Bushey? 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.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Think of roof lanterns for orangeries, kitchen-diners and single-storey extensions.
Bushey sits about 3 km from Watford and 6 km from Borehamwood, and we cover the whole WD23 postcode district and the roads in between.
Options we can specify in Bushey
- Internal and external colours
- Aluminium or uPVC systems
- Rectangular, square or bespoke sizes
- LED lighting in the plaster box
- Solar-control or self-cleaning glass
- Can include opening vents
- Light from every angle across the day
What to check first
- Some designs project above the roof enough to affect planning on certain houses
- Needs a strong, level kerb or upstand
Planning, building control and Bushey
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. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
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. 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.
What do roof lanterns cost in Bushey?
Guide prices for roof lanterns in Bushey are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Bushey address.
- Measure and check. A surveyor visits Bushey, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
Related work in Bushey
Common 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 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.
Aluminium or uPVC?
Aluminium gives slimmer bars and a longer life; uPVC costs less. We fit both.
Do I need to be at home for the survey in Bushey?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Is the survey in Bushey free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
