How we approach roof lanterns in Blackburn
For Blackburn 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.
Exposed hillside towns in the North West need flashing and seal details that cope with wind-driven rain. In Blackburn, as anywhere, roof lanterns are the usual choice for orangeries, kitchen-diners and single-storey extensions.
We work across Lancashire, including Blackburn, and in neighbouring towns such as Darwen and Accrington. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Blackburn
- Solar-control or self-cleaning glass
- Opening vents with electric control
- Aluminium or uPVC systems
- LED lighting in the plaster box
- Internal and external colours
- Double or triple glazed with solar-control options
- Adds visual height to a single-storey room
Things we check at survey
- Plaster-box depth affects how the lantern looks from below
- Some designs project above the roof enough to affect planning on certain houses
Do you need permission in Blackburn?
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.
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.
Our planning guide covers each nation in more detail.
What do roof lanterns cost in Blackburn?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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
- Send the details. Postcode, rough size and a photo of the roof and room.
- 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
Other services in Blackburn
Common 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.
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.
Is the survey in Blackburn free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you fit roof lanterns in Blackburn?
Yes. We survey and fit roof lanterns in Blackburn and across Lancashire. Send your postcode and we will offer a survey date when we reply.
