What do roof lanterns in Seaham involve?
For Seaham 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.
North East terraces and colliery-town housing often have rear offshoots where a rooflight brightens a narrow kitchen. Typical uses for roof lanterns include rooms that need height as well as light.
Neighbouring towns include Houghton-le-Spring (8 km) and Sunderland (8 km). We offer a survey date when we reply to your enquiry.
Options we can specify in Seaham
- Internal and external colours
- Opening vents with electric control
- Solar-control or self-cleaning glass
- LED lighting in the plaster box
- Rectangular, square or bespoke sizes
- Classic look that suits period and modern homes
- Double or triple glazed with solar-control options
What to check first
- Plaster-box depth affects how the lantern looks from below
- Larger lanterns may need a steel or timber ring beam
Do you need permission in Seaham?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
Read the planning permission guide before you commit to a design.
Roof lanterns prices in Seaham
These are typical supply-and-fit ranges. For an address in Seaham, 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 |
How the job runs
- Tell us what you have. Send the SR7 postcode, a rough size and a couple of photos.
- 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Roof lanterns near Seaham
Other services in Seaham
Roof lanterns in Seaham: questions
Roof lantern or flat rooflight?
A lantern adds height and sky from all sides; a flat rooflight is lower-profile and cleaner from outside. Our guide compares them in detail.
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.
Do I need to be at home for the survey in Seaham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Seaham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
