Electric opening rooflights in Blackheath: what is involved?
For Blackheath 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.
Party walls are a fact of life in London terraces, and rooflights close to a shared wall need detailing that keeps the neighbour's side dry too. Think of electric opening rooflights for rooms that overheat in summer or steam up when cooking.
Blackheath sits about 2 km from Greenwich and 3 km from Catford, and we cover the whole SE3 postcode district and the roads in between.
Specification options
- Double or triple glazing
- Smart-home or app control (manufacturer dependent)
- Frame colour to match your doors
- Electric actuator with wall switch or remote
- Insect screen
- Daylight and purge ventilation from one unit
- Rain sensor closes the lid automatically
Things we check at survey
- Lid opening height is limited by the actuator stroke, typically a few hundred millimetres
- Needs a power supply at the opening — plan the cable route before ceilings close up
Do you need permission in Blackheath?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Read the planning permission guide before you commit to a design.
Electric opening rooflights prices in Blackheath
Guide prices for electric opening rooflights in Blackheath 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 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 |
How the job runs
- Tell us what you have. Send the SE3 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
More we do in Blackheath
Common questions
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.
Can I control it from my phone?
Some ranges link to smart-home hubs or their own app. If that matters, say so at survey and we will specify a compatible model.
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 you work alongside my builder in Blackheath?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
How do I book a survey in Blackheath?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
