What are sliding rooflights?
Our sliding rooflights service in South Glamorgan covers box rooflights whose glass lid slides back for walk-out roof access. We survey every job before fixing the price.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. Slate roofs, stone cottages and terraced valleys are typical across Wales, and slim rooflights that sit low in the slates suit them best.
Towns in South Glamorgan
What you can choose
- Rain sensor
- Electric drive with safety edge
- Integrated balustrade on some ranges
- Anthracite, black or RAL frames
- Double or triple glazing
- Electric operation with safety stops
- Replaces a dormer or stair enclosure on some roofs
Planning and building rules in Wales
Planning rules in Wales are tighter than in England for rooflights: Class C rights do not apply in conservation areas, National Parks or AONBs, so a rooflight there needs planning permission. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
In Wales the limiting values are 2.2 W/m²K for a rooflight and 1.4 W/m²K (or WER Band B) for a roof window in an existing house. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
What do sliding rooflights cost in South Glamorgan?
Guide prices for sliding rooflights in South Glamorgan 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 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 |
How the job runs
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Sliding rooflights in nearby areas
Common questions
Can children open it?
Controls can be key-switched or placed out of reach. We will set the controls up to suit the household.
Is it lockable?
Yes. Units lock from inside and the drive holds the lid closed.
What if it is raining?
Fitted with a rain sensor, an electric unit closes automatically. Most also have a manual override for power cuts.
Does it need planning permission?
A box unit that projects above the roof plane can need planning permission, especially on the front of a house or in a conservation area. We check before you order.
Do you fit sliding rooflights across South Glamorgan?
Yes. We survey and fit sliding rooflights across South Glamorgan, including Cardiff, Barry, Penarth.
