How we approach walk-on rooflights in Gravesend
Our walk-on rooflights service in Gravesend covers structural glass you can stand on, set flush into terraces and floors. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. In Gravesend, as anywhere, walk-on rooflights are the usual choice for terraces where the light below matters as much as the space above.
From Gravesend to Grays, Strood and South Ockendon, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Gravesend
- Fixed or with privacy interlayer
- Heated or self-cleaning glass on some ranges
- Internal floor panels between storeys
- Double or triple glazed with a structural top pane
- Anti-slip frit or etched top surface
- Designed to a stated load rating
- Anti-slip finish on the walking surface
What to check first
- Drainage around the unit needs planning so water does not pond on the glass
- Glass on roofs people can reach must not be fragile — check the non-fragility rating
Planning and building rules for Gravesend
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. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Gravesend
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 walk-on panel | £6,595 – £11,995 | £5,495 – £9,995 |
| Mid-size walk-on rooflight Typical | £4,795 – £6,595 | £3,995 – £5,495 |
| Small walk-on panel | £3,595 – £4,795 | £2,995 – £3,995 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Gravesend address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Other services in Gravesend
Walk-on rooflights in Gravesend: questions
Will it sit flush with my paving?
Yes — the unit is set on its own upstand so the glass finishes level with the surrounding paving or decking.
Does it need a structural engineer?
Often, yes. Where the unit sits on new or altered structure, an engineer confirms the support and the manufacturer confirms the glass.
How much weight can a walk-on rooflight take?
It depends on the model and size. Manufacturers state a design imposed load for each unit; we only specify a unit whose rating suits the use, such as a private terrace or a busier area.
Do I need to be at home for the survey in Gravesend?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Gravesend?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
