How we approach roof lanterns in Horley
For Horley 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.
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 orangeries, kitchen-diners and single-storey extensions.
From Horley to Crawley, Redhill and Reigate, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Internal and external colours
- Aluminium or uPVC systems
- LED lighting in the plaster box
- Rectangular, square or bespoke sizes
- Solar-control or self-cleaning glass
- Light from every angle across the day
- Slim aluminium bars, more glass
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 Horley
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.
See our building regulations guide for U-values, glazing limits and self-certification.
Roof lanterns prices in Horley
These are typical supply-and-fit ranges. For an address in Horley, 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 |
What happens next
- Tell us what you have. Send the RH6 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Roof lanterns near Horley
More we do in Horley
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.
Can you work alongside my builder in Horley?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you fit roof lanterns in Horley?
Yes. We survey and fit roof lanterns in Horley and across Surrey. Send your postcode and we will offer a survey date when we reply.
