What do roof lanterns in Runcorn involve?
We handle roof lanterns across Cheshire, including Runcorn. In short: hipped glass lanterns that lift the ceiling of orangeries and extensions. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Converted mills and warehouses in the North West often have large rooflights or glass roofs that need specialist replacement. Think of roof lanterns for rooms that need height as well as light.
Runcorn is around 12 km from Warrington, and we survey and fit throughout that part of Cheshire, including the WA7 district.
Specification options
- LED lighting in the plaster box
- Internal and external colours
- Aluminium or uPVC systems
- Rectangular, square or bespoke sizes
- Opening vents with electric control
- Adds visual height to a single-storey room
- Classic look that suits period and modern homes
Things we check at survey
- Plaster-box depth affects how the lantern looks from below
- Needs a strong, level kerb or upstand
Consents for roof lanterns in Runcorn
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.
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.
Our planning guide covers each nation in more detail.
What do roof lanterns cost in Runcorn?
Prices below are shown including and excluding VAT. In Runcorn, 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 |
What happens next
- Tell us what you have. Send the WA7 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Roof lanterns near Runcorn
More we do in Runcorn
Roof lanterns in Runcorn: questions
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 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 they leak?
Modern lanterns are sealed systems. Leaks usually trace back to the kerb or roof membrane detail, which we form and check ourselves.
Is the survey in Runcorn free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do I need to be at home for the survey in Runcorn?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
