Sliding rooflights in Llanelli: what is involved?
Our sliding rooflights service in Llanelli covers box rooflights whose glass lid slides back for walk-out roof access. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Chapels, barns and farm buildings converted across Wales often need bespoke or conservation-style glass. In Llanelli, as anywhere, sliding rooflights are the usual choice for staircases that rise to a roof terrace.
We cover all of Llanelli and the SA15 district, and nearby Gorseinon and Swansea.
Options we can specify in Llanelli
- Rain sensor
- Anthracite, black or RAL frames
- Integrated balustrade on some ranges
- Electric drive with safety edge
- Double or triple glazing
- Electric operation with safety stops
- Glazed box sides keep the headroom open
What to check first
- Needs space on the roof for the lid to slide clear
- The stair opening and headroom must meet Building Regulations
Planning, building control and Llanelli
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
See our building regulations guide for U-values, glazing limits and self-certification.
What do sliding rooflights cost in Llanelli?
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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Llanelli, measures and checks structure and access.
- 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.
Sliding rooflights near Llanelli
Related work in Llanelli
Questions about sliding rooflights in Llanelli
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.
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.
Will I need planning permission in Llanelli?
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed.
Do you fit sliding rooflights in Llanelli?
Yes. We survey and fit sliding rooflights in Llanelli and across Dyfed. Send your postcode and we will offer a survey date when we reply.
