Prices vary quite a bit depending on the size and type of window, how it opens, and how much structural work is needed to fit it into your particular roof. As a rough guide, homeowners across Bristol are typically looking at anywhere from a few hundred pounds to several thousand once materials, labour and finishing are all included.
What Pushes the Price Up or Down
The main cost drivers are the size of the window, whether it is a simple manual model or an electric or solar-powered version, and whether your roof is tiled or slated, since flashing kits differ between the two. Access also matters a great deal, a window on a steep two-storey roof will cost more to fit safely than one on a low single-storey extension.
Internal finishing adds to the bill too. Plastering the reveal, fitting a new sill or liner, and redecorating around the opening are often priced separately from the supply and fit of the window itself, so it's worth asking what exactly is included when comparing quotes.
Typical Cost Ranges
As a very rough indication only, a standard manual VELUX window supplied and fitted into an existing roof might sit somewhere between £750 and £1,500. Larger windows, electric or solar-opening models, or those with integrated blinds tend to push nearer £1,200 to £2,500.
Where a loft conversion is involved and a new opening needs to be formed, with rafters trimmed and the structure properly supported, total costs including plastering can run from around £2,500 up to £4,500 or more per window. These figures are indicative only and actual cost depends heavily on your specific roof, access and finish, so treat them as a starting point rather than a firm price.
Getting a Figure You Can Rely On
Because every roof is different, the only way to get a number that actually reflects your home is a site visit. Brunel Roofing Bristol offers a free, no-obligation quote where one of the team assesses the roof covering, structure and access before putting together an honest, itemised price rather than a rough estimate over the phone.
Get a Free Quote for VELUX Window Installers
Every roof is different — the fastest way to get an accurate answer is a quick chat with our team.