Fit-onlySupply & fitReplacementsTrade fitting
Fitting teams across England, Wales, Scotland & NI · Call 0800 088 6248
RooflightInstallers.co.uk
Brent · HA0 · Greater London

Pitched roof window installation in Brent

Glass is heavy, and bigger units get heavy fast. Fitting a pitched roof window in Brent means planning how it travels from the delivery vehicle to the roof without chipping an edge or straining a back. Smaller units go up by hand with two fitters. Larger ones may need a hoist, a scaffold loading bay or a crane, and we tell you at quote stage if that applies. Once it is up, the fitting follows the maker's sequence: seat, fix, seal, finish. We take on work like this across Greater London.

Guide price from £845 · Supply & fit

What the job costs in Brent

Standard window

£845 – £1,395including VAT at 20%

Centre-pivot roof window with flashing kit, tiles cut and refitted, inner lining

Larger or top-hung

£1,395 – £2,045including VAT at 20%

Bigger or top-hung windows, or two in the same roof

Electric or pair

£2,045 – £3,095including VAT at 20%

Electric or solar windows, or a matched pair with blinds

Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Where our fitters travel

If you also own a property or a business unit in Wembley, Harrow or Harlesden, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and HA0, HA9 and UB6 sit comfortably within that pattern.

Buying your own, or letting us supply

If you have bought a pitched roof window yourself, we check four things before fitting. First, the delivery: open it, look for chips, cracks and bent frames, and report any damage to the seller straight away. Second, the size, measured against the builder's opening rather than the external frame. Third, the flashing kit and the roof pitch range. Fourth, the maker's instructions, which set the fixings and sealing. Product warranty claims go to the seller and maker; our guarantee is for how it was fitted.

What we do on the day

  • Window frame fixed on its brackets, square and at the right height
  • Underlay collar or membrane dressed and taped around the frame
  • Inside lining fitted and left ready for decoration
  • Scaffold or not — We look at the roof height and the window position to see whether scaffolding is needed.
  • Head height and view — We think about how the window will be used from inside before fixing its height.

What happens on the day

Where a job takes one day, the split is usually structural work first and finishing second. Early on, the fitters cut or prepare the opening, trim where needed and prepare the upstand or flashing. Then a pitched roof window is lifted in, fixed and made weathertight so the roof is sound before anyone moves inside. Plasterboard, trim and filler for the reveal come after. Each evening the work area is swept, and at the end the glass is cleaned and the team talks you through what was done.

Planning, building control and Brent

England's rules in short: permitted development usually covers a rooflight on a house roof provided it doesn't stick out more than 0.15 m or rise above the ridge, though a listed building always needs consent and some streets have Article 4 directions. Building regulations apply to new openings, and replacements go through building control; as we are not registered with a competent person scheme, we use a building notice and show the fee on the quote. The energy limit for rooflights in existing homes is 2.2 W/m²K, and the 2026 Approved Document L, in force from 24 March 2027, keeps that figure.

What to send for a quick quote

For fit-only work, the product details matter most: the link, the spec sheet, or a photo of the label on the box. Alongside that, send pictures of the roof and the ceiling below, approximate opening sizes, the type of roof covering, and how someone would get onto the roof. For supply and fit, the same photos and sizes do the job. Finish with your postcode, such as HA0.

Common questions in Brent

Do I need planning permission for a rooflight in Brent?

Often not. Many rooflights fall under permitted development, provided they do not project beyond the national limit and meet the other conditions that apply in England. Conservation areas, listed buildings and some flats are different and may need consent. Because the rules depend on the property, we confirm what is likely to apply at your address and point you to the planning authority where an application is needed.

Do you make good inside after fitting?

Yes, where the quote includes it. Internal finishing usually means lining the reveal with plasterboard, taping or skimming, and fitting trim where it meets the ceiling. Some people prefer their own plasterer or decorator to finish off, which is fine. The written quote spells out exactly where our work stops, so nobody is left guessing about who does what once the unit is in.

Does a rooflight need building regulations approval?

A new opening usually needs building regulations approval. A replacement is a controlled fitting: it must be self-certified by an installer registered with a competent person scheme or notified to building control. We are not registered with a scheme, so replacements we fit are notified to building control with a building notice, and the council's fee is shown on your quote.

Got a unit waiting to go in, or need one sourced? Either way, start with your Brent address and a couple of photos.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Roof windows in Brent

Send photos and rough sizes, or ask for a survey for install work. One fixed written price before anything starts.

CallGet a quote