Pitched roof windows in Portsmouth: what is involved?
For Portsmouth homes and buildings we offer pitched roof windows: centre-pivot and top-hung skylights for tiled and slate roofs. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Think of pitched roof windows for pitched roofs over bedrooms, stairs and bathrooms.
From Portsmouth to Gosport, Fareham and Ryde, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Portsmouth project
- Flashings for tiles, slates or recessed fitting
- Centre-pivot or top-hung
- Combination and stacked windows
- Double or triple glazing
- Manual, electric or solar-powered opening
- Usually fitted in a day
- Blinds and electric opening available
What to check first
- Rafters may need trimming for wider windows
- Front-facing roof windows can need permission in conservation areas
Planning and building rules for Portsmouth
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. 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. 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.
Our planning guide covers each nation in more detail.
What do pitched roof windows cost in Portsmouth?
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 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 |
What happens next
- Tell us what you have. Send the PO1 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Portsmouth
Pitched roof windows in Portsmouth: 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.
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.
Can roof windows be electric?
Yes — electric and solar-powered models open by remote and many include rain sensors.
Do I need to be at home for the survey in Portsmouth?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Will I need planning permission in Portsmouth?
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.
