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RooflightInstallers.co.uk
Crowthorne · RG45 · Berkshire

Pitched roof window installation in Crowthorne

Rooflight work is weather work. Membranes, primers and sealants all want a dry surface, so a fitting day in Crowthorne is planned around the forecast rather than pinned to a date regardless of rain. The opening is kept covered whenever it is exposed, and a roof is not left open overnight without a proper temporary seal. That approach applies to every pitched roof window we install, from a new opening to a straight swap or a fit-only job. We cover Crowthorne, the RG45 district and the rest of Berkshire.

Guide price from £845 · Supply & fit

Crowthorne guide prices

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.

Is your address covered?

Jobs across RG45, GU47 and RG40 are part of our normal cover for Crowthorne. We are not an office on the high street. Our fitting teams come out to the property from wherever they are working that week. Neighbouring places such as Sandhurst and Yateley are covered on the same terms, so a house on the edge of town is no harder to book than one in the centre.

What we check on a supplied unit

Which works out better, buying your own or letting us supply? It depends on what you value. Buying your own gives you control of the product and what you pay for it. Letting us supply puts the whole job, unit and fitting, under one written quote. On a customer-supplied unit we still measure it against the opening, look at the upstand, and inspect the condition it arrived in. Warranty on the product sits with whoever sold it, while the fitting carries our own guarantee.

On the day, we cover

  • Inside lining fitted and left ready for decoration
  • Tiles or slates cut and refitted neatly around the flashing
  • Underlay collar or membrane dressed and taped around the frame
  • Side slopes and neighbours — We check which slope the window is going on before you commit.
  • Energy limit for roof windows — We check the window's published figures against the energy limit for existing homes.

Fitting your pitched roof window, step by step

Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a pitched roof window: one day, weather permitting.

Regulations for Crowthorne properties

Replacing a rooflight in an English home is a controlled fitting: it has to be self-certified by a scheme-registered installer or notified to building control. We are not registered with a competent person scheme, so replacements we fit are notified with a building notice, and the new unit has to meet current energy limits. Adding a new one usually means a building regulations application, because joists or rafters are trimmed. On the planning side, most house rooflights are permitted development if they project 0.15 m or less; on a side slope the glass must be obscured and fixed unless the opening part is over 1.7 m above the floor.

Before you get in touch

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 RG45.

Common questions in Crowthorne

What is included in the price?

The written quote lists it line by line. Typically that covers fitting labour, fixings, sealants, membrane or flashing materials, any upstand work, internal finishing if agreed, and taking away the waste. For supply and fit, the unit itself is included too. Scaffold, lifting gear and any third-party fees, where needed, are shown separately so you can see what each part of the job costs.

How long does fitting take?

Fitting a pitched roof window into an existing, correctly sized opening is often a day's work. New openings take longer, because joists or rafters need trimming, an upstand or flashing has to be built or fitted, and the inside needs finishing. Large units that need lifting gear, and days lost to rain, can stretch things further. Your written quote gives a realistic estimate for your roof.

Can you fit a rooflight in winter or when it is raining?

Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.

Get in touch with the details of your Crowthorne property and we will explain what the job involves and what it costs.

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

Roof windows in Crowthorne

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

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