How we approach sliding rooflights in Hammersmith
For Hammersmith homes and buildings we offer sliding rooflights: box rooflights whose glass lid slides back for walk-out roof access. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Victorian and Edwardian terraces with narrow side returns are typical of much of London, and a glass roof or long flat rooflight is the usual way to keep the back rooms bright once the return is built over. Sliding rooflights suit walk-out access where a hatch would feel cramped.
We work across Greater London, including Hammersmith, and in neighbouring towns such as Shepherds Bush and Chiswick. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Hammersmith project
- Integrated balustrade on some ranges
- Double or triple glazing
- Rain sensor
- Electric drive with safety edge
- Anthracite, black or RAL frames
- Daylight down the stair when closed
- Glazed box sides keep the headroom open
Things we check at survey
- Needs space on the roof for the lid to slide clear
- Electric units need a dedicated supply and commissioning
Do you need permission in Hammersmith?
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. 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.
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.
Sliding rooflights prices in Hammersmith
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 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 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Hammersmith, measures and checks structure and access.
- 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.
Nearby towns
Other services in Hammersmith
Questions about sliding rooflights in Hammersmith
What if it is raining?
Fitted with a rain sensor, an electric unit closes automatically. Most also have a manual override for power cuts.
Can children open it?
Controls can be key-switched or placed out of reach. We will set the controls up to suit the household.
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.
Do you fit sliding rooflights in Hammersmith?
Yes. We survey and fit sliding rooflights in Hammersmith and across Greater London. Send your postcode and we will offer a survey date when we reply.
Will I need planning permission in Hammersmith?
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.
