How we approach conservation rooflights in Tonbridge
We handle conservation rooflights across Kent, including Tonbridge. 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. Typical uses for conservation rooflights include period, listed and conservation-area roofs.
From Tonbridge to Tunbridge Wells, Sevenoaks and Crowborough, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Tonbridge
- Blinds
- Steel or aluminium frames
- Flashings for slate or plain tile
- Central vertical glazing bar
- Manual or electric opening
- Suits slate and plain-tile roofs
- Traditional slim profile, sits low in the roof
What to check first
- Listed building consent is needed for listed buildings
- Lead or matching flashings may be required
Planning, building control and Tonbridge
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
What do conservation rooflights cost in Tonbridge?
Guide prices for conservation rooflights in Tonbridge are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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 Tonbridge address.
- Measure and check. A surveyor visits Tonbridge, measures and checks structure and access.
- 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 Tonbridge
Other services in Tonbridge
Questions about conservation rooflights in Tonbridge
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
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.
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Do you fit conservation rooflights in Tonbridge?
Yes. We survey and fit conservation rooflights in Tonbridge and across Kent. Send your postcode and we will offer a survey date when we reply.
Is the survey in Tonbridge free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
