How we approach pitched roof windows in Harrow
Pitched roof windows in Harrow means centre-pivot and top-hung skylights for tiled and slate roofs. We cover the HA2 district and the rest of Greater London, with a survey before any price is fixed.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. In Harrow, as anywhere, pitched roof windows are the usual choice for pitched roofs over bedrooms, stairs and bathrooms.
Harrow sits about 4 km from Wembley and 4 km from Northolt, and we cover the whole HA2 postcode district and the roads in between.
What you can choose
- Centre-pivot or top-hung
- Manual, electric or solar-powered opening
- Combination and stacked windows
- Integral blinds and shutters
- Double or triple glazing
- Fits between rafters in most roofs
- Centre-pivot opening for easy cleaning from inside
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 Harrow
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. 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.
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 Harrow
Guide prices for pitched roof windows in Harrow are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Harrow address.
- Measure and check. A surveyor visits Harrow, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Other services in Harrow
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 roof windows be electric?
Yes — electric and solar-powered models open by remote and many include rain sensors.
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.
Do I need to be at home for the survey in Harrow?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit pitched roof windows in Harrow?
Yes. We survey and fit pitched roof windows in Harrow and across Greater London. Send your postcode and we will offer a survey date when we reply.
