Loft conversion skylights in Horley: what is involved?
Thinking about loft conversion skylights in Horley? The short answer: roof windows planned for loft rooms — light, headroom and escape. The longer answer depends on your roof, which is why we survey before we price.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. Loft conversion skylights suit attic bedrooms, offices and en-suites.
From Horley to Crawley, Redhill and Reigate, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Electric or solar opening
- Blackout and thermal blinds
- Conservation styles
- Combination and stacked layouts
- Balcony roof windows on some ranges
- Set out on the rafters before plastering
- Escape-window sizing where required
Before you order: points to check
- Insulation and vapour control details matter for condensation
- Rafter spacing affects window widths
Planning and building rules for Horley
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. 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.
Our planning guide covers each nation in more detail.
Loft conversion skylights prices in Horley
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Electric top-hung escape window | £1,675 – £2,395 | £1,395 – £1,995 |
| Standard centre-pivot window Typical | £1,195 – £1,675 | £995 – £1,395 |
| Small window into open rafters | £955 – £1,315 | £795 – £1,095 |
How the job runs
- Tell us what you have. Send the RH6 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
Related work in Horley
Common questions
Top-hung or centre-pivot in a loft?
Top-hung gives a clearer view and often suits escape use; centre-pivot is easier to clean and suits higher positions.
How many roof windows does a loft room need?
Enough to give good light — a common rule of thumb is glazing equal to roughly a tenth to a fifth of the floor area, adjusted for orientation and use. We advise at survey.
Can I add blinds later?
Yes — most manufacturers make blinds for each window size.
Will I need planning permission in Horley?
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.
Do I need to be at home for the survey in Horley?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
