Pitched roof windows in Cambridge: what is involved?
Pitched roof windows in Cambridge means centre-pivot and top-hung skylights for tiled and slate roofs. We cover the CB1 district and the rest of Cambridgeshire, with a survey before any price is fixed.
Flat, open landscape in much of the East means roofs take the wind, so upstand and seal details matter more than the brand of glass. Typical uses for pitched roof windows include lofts, attic rooms, landings and vaulted ceilings.
From Cambridge to St Ives, Newmarket and Ely, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Centre-pivot or top-hung
- Double or triple glazing
- Integral blinds and shutters
- Flashings for tiles, slates or recessed fitting
- Combination and stacked windows
- Centre-pivot opening for easy cleaning from inside
- Daylight and ventilation in a pitched roof
Things we check at survey
- Insulation collars and vapour control must be detailed
- Rafters may need trimming for wider windows
Do you need permission in Cambridge?
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Pitched roof windows prices in Cambridge
These are typical supply-and-fit ranges. For an address in Cambridge, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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
- Tell us what you have. Send the CB1 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.
Neighbouring towns
Related work in Cambridge
Pitched roof windows in Cambridge: questions
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 planning permission for a roof window?
Often not, under householder permitted development, provided it does not project too far above the roof plane and conditions are met. Listed buildings, flats and some conservation areas are different. Our planning guide covers each nation.
Can a roof window be fitted from inside?
In most cases, yes — only the tiles around the opening are lifted, and much of the work is done from inside the loft.
Can you work alongside my builder in Cambridge?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Will I need planning permission in Cambridge?
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.
