Square roof lanterns in Gainsborough
We supply square roof lanterns to Gainsborough (DN21) and the rest of Lincolnshire: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a square roof lantern for Gainsborough
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Gainsborough homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
In midsummer the noon sun stands about 60.1° high over Gainsborough, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Stock colours or any RAL on request
- Ideal over a table, island or hallway
- Four triangular panes to a single apex
Delivery and fitting in Gainsborough
We confirm the delivery cost and date for DN21 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Gainsborough can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to DN21 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Gainsborough
Guide prices for common square roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £1,095–£1,295£912 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £1,595–£1,895£1,329 ex VAT from | Configure |
| 2000 × 2000 mm | 4.00 m² | £2,395–£2,795£1,996 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Gainsborough
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Gainsborough are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.
Sources: Approved Document L, GOV.UK · Planning Portal
Questions from Gainsborough
Is a pyramid lantern more expensive than a rectangular one?
Per square metre it can cost slightly more, because every pane is a triangle and the apex needs a special joint. The difference is usually small next to the effect of size and glass choice.
Can I have an opening vent in a pyramid lantern?
Some ranges can fit a vent in one of the triangular panes, others cannot. We will tell you on the quote whether your chosen range allows it.
Is it worth having solar-control glass in Gainsborough?
With the midsummer sun about 60.1° high at noon, roof glass in Gainsborough gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
How quickly can I get a roof lantern in Gainsborough?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for DN21.