Sliding rooflights in Hampstead: what is involved?
Sliding rooflights in Hampstead means box rooflights whose glass lid slides back for walk-out roof access. We cover the NW3 district and the rest of Greater London, with a survey before any price is fixed.
Many London roofs are reached only through the house or over neighbouring property, so lifting heavy glass is planned at survey rather than on the day. Think of sliding rooflights for staircases that rise to a roof terrace.
Jobs in Hampstead are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
What you can choose
- Box (glazed sides) or flat sliding lid
- Double or triple glazing
- Electric drive with safety edge
- Integrated balustrade on some ranges
- Rain sensor
- Glazed box sides keep the headroom open
- Full-width, walk-out access to a roof terrace
Things we check at survey
- Needs space on the roof for the lid to slide clear
- Electric units need a dedicated supply and commissioning
Planning, building control and Hampstead
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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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 sliding rooflights cost in Hampstead?
Prices below are shown including and excluding VAT. In Hampstead, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large box slider with electric drive | £11,995 – £20,395 | £9,995 – £16,995 |
| Standard box slider Typical | £8,995 – £13,195 | £7,495 – £10,995 |
| Flat sliding lid | £7,195 – £9,595 | £5,995 – £7,995 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Hampstead
Sliding rooflights in Hampstead: questions
How heavy is it?
Box sliders weigh hundreds of kilograms, so delivery may need a crane or lifting gear, and the structure must be checked.
What if it is raining?
Fitted with a rain sensor, an electric unit closes automatically. Most also have a manual override for power cuts.
Is it lockable?
Yes. Units lock from inside and the drive holds the lid closed.
Do I need to be at home for the survey in Hampstead?
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 Hampstead?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
