Roof lanterns in Guildford: what is involved?
Thinking about roof lanterns in Guildford? 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. Typical uses for roof lanterns include rooms that need height as well as light.
Jobs in Guildford are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Specification options
- Internal and external colours
- Rectangular, square or bespoke sizes
- LED lighting in the plaster box
- Aluminium or uPVC systems
- Opening vents with electric control
- Slim aluminium bars, more glass
- Light from every angle across the day
Before you order: points to check
- Some designs project above the roof enough to affect planning on certain houses
- Needs a strong, level kerb or upstand
Planning, building control and Guildford
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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
See our building regulations guide for U-values, glazing limits and self-certification.
What do roof lanterns cost in Guildford?
These are typical supply-and-fit ranges. For an address in Guildford, 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Guildford address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Nearby towns
Related work in Guildford
Common questions
Aluminium or uPVC?
Aluminium gives slimmer bars and a longer life; uPVC costs less. We fit both.
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.
Is the survey in Guildford free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you fit roof lanterns in Guildford?
Yes. We survey and fit roof lanterns in Guildford and across Surrey. Send your postcode and we will offer a survey date when we reply.
