The name, Velux window, is given to a roof light or skylight window and frequently, these terms are all used interchangeably. A Velux window fits flush into the plane of the roof and opens outwards and they have lots of advantages. Mainly, they offer both natural light and fresh air into a space where a conventional styled window may not be possible, normally a loft conversion.
Fitting a Velux window involves the creation of a space within the existing roof covering. Because they are so versatile, it is possible to fit many different types of roof windows in terms of size, features, glazing and design.
The costs of Velux window installations vary depending on the amount of work needed to be done to the roof and other factors which include ease of access, waste disposal and the choice of Velux design. It costs £800 on average to install a Velux window in a typical loft conversion in the UK.
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Velux windows sizes and prices
Are you planning a new loft conversion or have bought a property where one or two small Velux windows need replacing with something more contemporary? Or maybe you want to change the design. You can hugely increase the light and quality of the environment by adding large windows to a loft conversion. Or you may want to replace the Velux windows on the front-facing part of the loft. This can update or alter the styling of the exterior of the house in line with other refurbishment works.
Here is a handy table which captures the costs of different Velux windows.
| Window
Fitting Task |
Size of
Window |
Estimated
Time |
Material
Cost |
Labour
Charges |
Total
Cost |
| Large Velux Window | 1340mm x 1600mm | £395.83 | |||
| Medium Velux Window | 940mm x 980mm | £222.50 | |||
| Small Velux Window | 550mm x 700mm | £172.50 | |||
Hidden costs
Hidden costs can add to the final bill. Scaffolding charges or applications for planning consent if your home is listed or in a conservation area are some costs which you might not have considered. Also, there can be waste disposal costs of the old windows and any other discarded roofing materials. And remember, most product costs are quoted net of VAT on window websites.
In broad terms, Velux window prices differ little across the UK, it is the labour charges which can vary significantly with London and the South East attracting premium rates.
Finding your Velux code for replacement
It’s easy for you to replace your windows with Velux and here’s how. The existing window will reveal a unique manufacturing code so just locate it on your current window then match it to a new product to ensure the correct fit. The code can be found on the top right-hand edge of the roof window when it is open.
The window will have a data plate which reveals the type of window, the window size and the colour of the data plate will depend on when the window was made. Roof windows installed after 1 April 2001 will have a grey sign. Look for three letters which indicate the type of window and a size code after a dash symbol comprising one letter combined with two numbers. Velux windows manufactured between April 1991 and April 2001 have a gold sign and the product type is represented as three letters and a size code which is three numbers. Velux can always help you find the code and decipher it for you if you are unsure.
Installation types: Standard and Recessed
A standard flashing kit will make the window sit just slightly proud of the roofline and this differs from a recessed one where the Velux window will fit 40mm deeper in the roof structure. The recessed style provides a sleek, streamlined appearance offering the architect greater flexibility on design.
Velux Windows Features & Benefits
Velux windows come with numerous features and benefits and can also be customised to suit your own requirements. Because Velux windows can be fitted to different locations, there is a wide range of features to choose from and they include:-
- Electric and solar-powered roof windows
- Burglary resistant roof windows
- Top hung roof windows
- Super sound insulation
- Smoke ventilation
Flashing, Insulation, Interior & Exterior Finishing
Fitting
The Velux product offers the ultimate superior fit with each window sold with a kit which makes installation easy, quick and effective.
Finish
Enjoy a premium finish which is watertight, stylish and safely fitted to the existing roof construction whatever that may be. The interior and exterior appearance of the window is utterly functional yet design-driven, offering you the ultimate in style, performance and good looks.
Installation kit
Velux provides:-
- Original Velux flashings – these fit the exact window dimensions and are precision-made to ensure a snug fit, connecting perfectly to your roofing material
- Underfelt collar – pleated underfelt collar which forms a tight seal between the Velux window and the existing roof felt underlay
- Water drainage gutter – self-supporting drainage gutter ensuring safe water drainage from above the window
- Insulation frame – an insulation frame with flexible foam for a tight and secure fit to the roof construction
- Vapour barrier collar – which includes assembly tools for a vapour and airtight solution
- Interior lining – prefabricated linings for easy and airtight completion inside
- Lining frame kit – a quick and easy to assemble adjustable steel frame for fast and easy framing
Velux are masters of window design and installation and have been doing it long enough to have seriously perfected the art of a beautiful window. A beautiful window is one which sits seamlessly in your roof, regardless of type, and delivers both optimal performance and stylish design.
Glazing options
If you thought glass was…well, just glass, then think again. Velux windows’ glazing has infinite possibilities depending on your requirements and location:-
- Choose glazing with special sound insulation. This is ideal if you live in a busy or noisy area or an exposed rural location to reduce the sound of severe weather
- In cold weather, insulate your room or loft conversion with 3-layer glazing. This filters out the heat from the sun’s rays allowing light but not excessive temperatures with high thermal efficiency protecting you from the cold during the winter
- Rain noise reduction will keep dreams sweet and slumber peaceful if you plan bedrooms for your new loft conversion
- Safety lamination provides protection against glass falling into the room below in the event of an accidental breakage
- Toughened glass can help repel extreme weather in exposed locations
- A UV filter will protect soft furnishings and fabrics from bleaching and fading due to the sun. This allows you to flood the room with natural light and not have to alter your choice of interiors
- A special dirt-repellent coating on the glazing makes the windows easy to clean with less frequent cleaning required to keep them looking pristine
- Hydrophobic coating reduces the amount of dirt that forms on the outside of the window to keep your view clear whatever the time of year
- Enhanced security glazing is perfect for ground floor extensions
Optimise the performance of your Velux window with a careful choice of glazing which will hugely enhance the environment so you can enjoy that room or area.
Velux windows are not just about allowing the ingress of light and this is because they need to perform and manage environmental considerations both inside and outside the home. And these will all be specific to that house and its location.
Cost
If you add glazing features to your Velux window order then this will increase the cost of the unit. But remember, Velux windows are a real attribute and can add discernible value to your home. Always consider the different glazing options as the right choice of glass can make a real difference to the finished product.
How to Fit a Velux Window
The approximate position of the new window is marked on the rafters if there is not already an existing window or aperture in place. Next, an area of felt and/or boarding is removed to expose the tile or slate roof.
The tiles or slates are carefully removed and then the battens are cut close to the side of the rafters. After this, a slightly wider aperture is created than the window size and then the tiles or slates are removed to reflect the additional flashing that will sit around the window.
The Velux window frame is inserted first into the aperture in the roof and the weatherproofing is completed. The flashing kit and insulation collar are added next. Finally, the frame is fitted without the window and the unit once the frame is securely in place. All this work takes place from the inside of the building.
Velux Window FAQs
Do you need planning permission for a Velux window?
You will not need planning permission as a general rule but it does always depend on the style or design of the works you have planned. However, houses which are listed or situated in a conservation area may require special consent not applicable to a property in an ordinary residential road.
How long should a Velux window last?
Velux windows are guaranteed for ten years by Velux, additional products like electrical blinds and shutters are only guaranteed for three years. In reality, however, many Velux window replacements are carried out on windows which are decades old. It’s proof if it were needed that Velux windows really do represent excellent value for money. Most importantly, the product is quality and known for its longevity, the householder just needs to ensure the correct installation process.
How do you care for a Velux Window?
Velux windows are designed to be as easy care as possible not least because their location often makes access tricky compared to a conventional window. You can clean the pane with a soft, clean cloth or chamois leather, the type you would use on a car. Avoid any materials which are abrasive or contain tiny elements of metal. Ordinary clean water is usually sufficient to clean the pane but non-abrasive household cleaners may also be used. Soft water is best or filter your water if it is hard otherwise it can leave a film or residue on the surface of the glass pane.
What are the alternatives to Velux?
Constantly imitated but never bettered, there are other alternatives to the Velux brand. Plenty of other companies make rooflights or skylight windows and they may offer a cheaper alternative. RoofLITE is made by a sister company to Velux called Altaterra. The two products have some differences but RoofLITE windows are still a high-quality product with the backing of the great Velux tradition and legacy.
Find Velux Window Fitters Near You
To obtain quotations from two or three companies who can supply and fit Velux windows for your home project just fill out this form. Only a few details are required and then we can match your request with Velux Window fitters in your geographical area. It’s just one click to find an installer ready and available to quote for your job.