What do pitched roof windows in Dorchester involve?
Our pitched roof windows service in Dorchester covers centre-pivot and top-hung skylights for tiled and slate roofs. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. In Dorchester, as anywhere, pitched roof windows are the usual choice for pitched roofs over bedrooms, stairs and bathrooms.
We work across Dorset, including Dorchester, and in neighbouring towns such as Weymouth and Bridport. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Dorchester project
- Combination and stacked windows
- Centre-pivot or top-hung
- Flashings for tiles, slates or recessed fitting
- Integral blinds and shutters
- Manual, electric or solar-powered opening
- Fits between rafters in most roofs
- Blinds and electric opening available
Before you order: points to check
- Rafters may need trimming for wider windows
- Front-facing roof windows can need permission in conservation areas
Planning, building control and Dorchester
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. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Our planning guide covers each nation in more detail.
Guide prices for Dorchester
These are typical supply-and-fit ranges. For an address in Dorchester, 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
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Dorchester, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Dorchester
Common questions
Can roof windows be electric?
Yes — electric and solar-powered models open by remote and many include rain sensors.
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 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.
Do I need to be at home for the survey in Dorchester?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Dorchester?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
