How we approach sliding rooflights in Kendal
Sliding rooflights in Kendal means box rooflights whose glass lid slides back for walk-out roof access. We cover the LA9 district and the rest of Cumbria, with a survey before any price is fixed.
Rear kitchen extensions on North West semis often have small domes from decades ago that leak or have yellowed. In Kendal, as anywhere, sliding rooflights are the usual choice for walk-out access where a hatch would feel cramped.
We work across Cumbria, including Kendal, and in neighbouring towns such as Ulverston and Morecambe. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Kendal
- Box (glazed sides) or flat sliding lid
- Integrated balustrade on some ranges
- Double or triple glazing
- Rain sensor
- Electric drive with safety edge
- Full-width, walk-out access to a roof terrace
- Lockable from inside
Things we check at survey
- Weight and point loads need a structural check
- Electric units need a dedicated supply and commissioning
Consents for sliding rooflights in Kendal
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. 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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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.
What do sliding rooflights cost in Kendal?
Prices below are shown including and excluding VAT. In Kendal, 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 Kendal address.
- Measure and check. A surveyor visits Kendal, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Sliding rooflights near Kendal
Other services in Kendal
Questions about sliding rooflights in Kendal
What if it is raining?
Fitted with a rain sensor, an electric unit closes automatically. Most also have a manual override for power cuts.
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.
Can children open it?
Controls can be key-switched or placed out of reach. We will set the controls up to suit the household.
Can you work alongside my builder in Kendal?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Is the survey in Kendal free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
