How we approach pitched roof windows in Horsham
Thinking about pitched roof windows in Horsham? The short answer: centre-pivot and top-hung skylights for tiled and slate roofs. The longer answer depends on your roof, which is why we survey before we price.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. Typical uses for pitched roof windows include pitched roofs over bedrooms, stairs and bathrooms.
Horsham sits about 12 km from Crawley and 17 km from Horley, and we cover the whole RH12 postcode district and the roads in between.
Choices for your Horsham project
- Manual, electric or solar-powered opening
- Double or triple glazing
- Integral blinds and shutters
- Centre-pivot or top-hung
- Combination and stacked windows
- Daylight and ventilation in a pitched roof
- Flashings to suit tiles or slates
Things we check at survey
- Insulation collars and vapour control must be detailed
- Escape-window rules can apply to loft rooms
Consents for pitched roof windows in Horsham
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. 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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
Read the planning permission guide before you commit to a design.
Guide prices for Horsham
Prices below are shown including and excluding VAT. In Horsham, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large top-hung or electric window | £2,155 – £3,355 | £1,795 – £2,795 |
| Standard centre-pivot window Typical | £1,435 – £2,155 | £1,195 – £1,795 |
| Small roof window | £1,075 – £1,555 | £895 – £1,295 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Horsham address.
- 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.
Nearby towns
More we do in Horsham
Common questions
Will it need building regulations approval?
Fitting a new roof window usually involves cutting rafters and changing the thermal envelope, so building control approval (or, in England and Wales, a competent-person route) is normally needed. We tell you which applies.
Can you replace an old roof window?
Yes — replacement into the same opening is usually quicker than a new install, often a few hours per window.
Centre-pivot or top-hung?
Centre-pivot windows are easy to clean and suit most rooms. Top-hung windows open out from the top for an unobstructed view and suit lower roof pitches near eye level.
Do I need to be at home for the survey in Horsham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Horsham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
