How we approach sliding rooflights in Purley
Thinking about sliding rooflights in Purley? The short answer: box rooflights whose glass lid slides back for walk-out roof access. The longer answer depends on your roof, which is why we survey before we price.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. In Purley, as anywhere, sliding rooflights are the usual choice for walk-out access where a hatch would feel cramped.
We work across Greater London, including Purley, and in neighbouring towns such as Coulsdon and South Croydon. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Purley project
- Electric drive with safety edge
- Box (glazed sides) or flat sliding lid
- Integrated balustrade on some ranges
- Anthracite, black or RAL frames
- Rain sensor
- Replaces a dormer or stair enclosure on some roofs
- Electric operation with safety stops
What to check first
- Needs space on the roof for the lid to slide clear
- Electric units need a dedicated supply and commissioning
Do you need permission in Purley?
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
What do sliding rooflights cost in Purley?
Prices below are shown including and excluding VAT. In Purley, as elsewhere, making good inside and access equipment are the main variables.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Purley address.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Other services in Purley
Questions about sliding rooflights in Purley
Is a sliding rooflight better than an access hatch?
For daily use, usually yes — you walk out under open sky instead of climbing through a hinged hatch. A hatch costs less and suits occasional access.
Is it lockable?
Yes. Units lock from inside and the drive holds the lid closed.
Can children open it?
Controls can be key-switched or placed out of reach. We will set the controls up to suit the household.
Will I need planning permission in Purley?
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.
Can you work alongside my builder in Purley?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
