What do electric opening rooflights in New Malden involve?
For New Malden homes and buildings we offer electric opening rooflights: hinged rooflights that open on an electric actuator for fresh air. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
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. Electric opening rooflights suit kitchens, bathrooms and bedrooms that need fresh air as well as light.
We work across Greater London, including New Malden, and in neighbouring towns such as Surbiton and Kingston upon Thames. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Electric actuator with wall switch or remote
- Rain and wind sensor
- Integral blind
- Double or triple glazing
- Frame colour to match your doors
- Same slim look as a fixed unit when closed
- Can be grouped with fixed units on one roof
Things we check at survey
- Needs a power supply at the opening — plan the cable route before ceilings close up
- Lid opening height is limited by the actuator stroke, typically a few hundred millimetres
Planning and building rules for New Malden
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.
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.
Our planning guide covers each nation in more detail.
What do electric opening rooflights cost in New Malden?
These are typical supply-and-fit ranges. For an address in New Malden, 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 with rain sensor and blind | £4,195 – £5,995 | £3,495 – £4,995 |
| Mid-size electric with rain sensor Typical | £2,995 – £4,195 | £2,495 – £3,495 |
| Small manual or electric opening unit | £2,395 – £3,115 | £1,995 – £2,595 |
The process, step by step
- Tell us what you have. Send the KT3 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Electric opening rooflights near New Malden
Other services in New Malden
Common questions
What happens if it rains while it is open?
With a rain sensor fitted, the actuator closes the lid automatically when the sensor detects water. Without one, the lid stays where you left it, which is why we recommend the sensor on any unit over a kitchen or bedroom.
Can it open in a power cut?
Most electric units stay where they are during a power cut. Some manufacturers offer a manual override or battery backup — we will tell you which option the chosen model has.
Does it need an electrician?
The rooflight wiring needs a suitable supply. We can arrange it, or your own electrician can provide the spur and we connect the unit.
Is the survey in New Malden free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
How do I book a survey in New Malden?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
