Conservation rooflights for Sevenoaks: the essentials
We handle conservation rooflights across Kent, including Sevenoaks. In short: slim, low-profile steel-look rooflights for period and listed roofs. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Think of conservation rooflights for slate and plain-tile roofs where a quiet roofline matters.
From Sevenoaks to Tonbridge, Orpington and Swanley, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Central vertical glazing bar
- Manual or electric opening
- Blinds
- Steel or aluminium frames
- Flashings for slate or plain tile
- Traditional slim profile, sits low in the roof
- Often preferred by conservation officers
Before you order: points to check
- Conservation officers may specify size and position
- Projection above the roof line is limited — usually as flush as possible
Planning, building control and Sevenoaks
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Conservation rooflights prices in Sevenoaks
These are typical supply-and-fit ranges. For an address in Sevenoaks, 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 electric conservation rooflight | £2,755 – £4,195 | £2,295 – £3,495 |
| Standard conservation rooflight Typical | £2,035 – £2,755 | £1,695 – £2,295 |
| Small conservation rooflight | £1,795 – £2,155 | £1,495 – £1,795 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Sevenoaks address.
- 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.
Conservation rooflights near Sevenoaks
Other services in Sevenoaks
Common questions
Will the council accept it?
We cannot promise an outcome, but a slim conservation profile fitted low in the roof is the type many conservation officers ask for.
Can they open?
Yes, most are top-hung or side-hung for ventilation and cleaning, with manual or electric operation.
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
How do I book a survey in Sevenoaks?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Sevenoaks?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
