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Velux BBX CK04 0000 Vapour Barrier Collar 550 x 980mm
The Velux vapour barrier collar will help save you time and hassle, as it fits perfectly into the groove of the roof window. The vapour barrier collar guarantees a secure and airtight solution and prevents condensation from forming in the roof... -
Velux BDX 2000 MK06 Single Window Insulation & Felt Collars 780 x 1180mm
BDX is an insulation collar that insulates around the window frame, in order to reduce heat loss and eliminate cold bridges. -
Velux BFX MK04 1000 Underfelt Collar & Drainage Gutter 780 x 980mm
An underfelt collar by Velux that ensures the perfect fit and a watertight seal between the roof window, batterns, and the roofing underfelt. Includes an adjustable drainage gutter to lead water away from the head of the roof window. -
Velux BFX SK06 1000 Underfelt Collar & Drainage Gutter 1140 x 1180mm
An underfelt collar by Velux that ensures the perfect fit and a watertight seal between the roof window, batterns, and the roofing underfelt. Includes an adjustable drainage gutter to lead water away from the head of the roof window. -
Velux CFP 060060 0073QV Fixed Flat Roof Window 600 x 600mm
The VELUX dome with glazing is an advanced dome solution for installation in 0-15° roof pitches. It is an effective product for letting in daylight and fresh air, without compromising on energy efficiency and comfort with sun and heat protection... -
Velux CFP 090090 0073QV Fixed Flat Roof Window 900 x 900mm
The VELUX dome with glazing is an advanced dome solution for installation in 0-15° roof pitches. It is an effective product for letting in daylight and fresh air, without compromising on energy efficiency and comfort with sun and heat protection... -
Velux CFP 100100 0073QV Fixed Flat Roof Window 1000 x 1000mm
The VELUX dome with glazing is an advanced dome solution for installation in 0-15° roof pitches. It is an effective product for letting in daylight and fresh air, without compromising on energy efficiency and comfort with sun and heat protection... -
Velux CFU 090060 0020Q Fixed Flat Roof Window Base Unit 900 x 600mm
The VELUX glass rooflight with curved glass is a revolution in roof window design. The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful glass-to-edge view from inside the home even with a blind installed. In... -
Velux CFU 090090 0020Q Fixed Flat Roof Window Base Unit 900 x 900mm
The VELUX glass rooflight with curved glass is a revolution in roof window design. The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful glass-to-edge view from inside the home even with a blind installed. In... -
Velux CVU 060060 0220Q Electric Flat Roof Window Base Unit 600 x 600mm
The VELUX glass rooflight with curved glass is a revolution in roof window design. The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful glass-to-edge view from inside the home even with a blind installed. In... -
Velux CVU 090090 0220Q Electric Flat Roof Window Base Unit 900 x 900mm
The VELUX glass rooflight with curved glass is a revolution in roof window design. The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful glass-to-edge view from inside the home even with a blind installed. In... -
Velux CVU 120120 0220Q Electric Flat Roof Window Base Unit 1200 x 1200mm
The VELUX glass rooflight with curved glass is a revolution in roof window design. The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful glass-to-edge view from inside the home even with a blind installed. In... -
Velux DKL CK04 0705S Blackout Blind Grey
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL CK04 0705SWL Blackout Roller Blinds Grey with White Line
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. This blackout blind by Velux is available in either white or brushed aluminium rails and a choice or manual, electric... -
Velux DKL CK04 1025S Blackout Blind White
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL CK04 1025SWL Blackout Roller Blinds White with White Line
This white blackout roller blind from Velux offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. This blackout blind by Velux is available in either white or brushed aluminium rails and a choice or... -
Velux DKL M04 1025S Manual Roller Blackout Blind White 780 x 980mm
The greatest adventures start with a good night's sleep. Blackout roller blinds and duo blackout roller blinds are available in inspirational and cheerful designs perfect for kids rooms. This blackout roller blind is made from fabric that offers complete... -
Velux DKL MK04 0705S Blackout Blind Grey
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL MK04 0705SWL Blackout Roller Blinds Grey with White Line
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. This blackout blind by Velux is available in either white or brushed aluminium rails and a choice or manual, electric... -
Velux DKL MK04 1025S Blackout Blind White
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL MK04 1085S Blackout Blind Beige
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL MK06 1025S Blackout Blind White
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The... -
Velux DKL MK06 1025SWL Blackout Roller Blinds White with White Line
This white blackout roller blind from Velux offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. This blackout blind by Velux is available in either white or brushed aluminium rails and a choice or... -
Velux DKL MK08 1085S Blackout Blind Beige
The VELUX blackout roller blind offers blackout for darkness anytime. Ideal for bedrooms to ensure a good night's sleep or daytime nap. Your manual VELUX blinds come with a clever and discreet control bar that lets you adjust the blind comfortably. The...
VELUX Roof Windows
Which VELUX roof window to choose?
Follow the step by step guide below to help you decide which VELUX roof window you require.
- Size: There are a wide range of sizes and combinations available for VELUX roof windows so the first thing you need to do is pick the size you require and in the table below you will see the corresponding code of the roof window you need. Howarth provide a huge variety of VELUX roof window sizes and types from electric roof windows to VELUX Integra flat roof windows so picking the size at this point is incredibly important and will make a big difference to the light in your room.

- Top or Bottom operated. Choose which way you would like the window to be hung from the outward design.
- Centre Pivot (Standard): A top control bar makes it easy to open even with furniture under the window. Windows can be rotated 180 degrees for cleaning. They are available in manual, electric or solar operation. Centre Pivot is suitable for roof pitches between 15 degrees and 90 degrees.
- Top Hung: Top Hung Velux Windows can be opened at any position up to 45 degrees and open outwards for an unobstructed view. Top hung windows include a bottom handle for windows that is within easy reach. Suitable for roof pitches between 15 degrees and 55 degrees.
- Control Mode: Select the operation method. If your roof window should be placed out-of-reach or if you want ultimate comfort, the remote-controlled VELUX INTEGRA roof window is the answer but we also offer manual roof windows and solar powered roof windows as well.
- Manual (Standard): for roof windows that are within easy reach.
- Solar Powered - Open and close with the pre-paired wall switch which is ideal for out of reach windows. There’s no need to plug into a power supply, making installation even quicker and easier. The PV solar cell is on the external window frame and there is a rain sensor pre-fitted which will close the window automatically when it starts to rain.
- Electric: Open and close with just one touch of the pre-paired wall switch; ideal for roof windows that are out of reach. It's easy to install and just plugs into a power supply. It is also pre-fitted with a rain sensor to automatically close if it rains.
- Finish: Select the roof window finish that you require.
- White Painted (Standard): This finish is perfect for modern interiors and is painted before assembly for a flawless finish. There is lower maintenance with white painted windows when comparing to the pine finish roof windows. The window is produced from a high-quality certified grain. The resistance on the window is highly UV resistant to preserve look.
- White Polyurethane: Perfect for contemporary interiors and ideal for humid rooms such as kitchens or bathrooms. The finish on the White Polyurethane windows are moisture resistant and require less maintenance than pine. The roof windows are made from a high quality moulded polyurethane with an insulated timber core.
- Pine Finish: Ideal for a traditional interior. High quality natural pine with a protective triple-coat, clear lacquer finish.
- Glazing Options: VELUX glazing can add extra protection and noise reduction to a roof window. Choose which glazing:
- Safety (--70) Standard: Laminated Inner pane for safety and toughened outer pane. The u-value is 1.3 W/m2K
- Standard plus (--68): Triple glazed, laminated inner pane. Includes rain noise reduction. The u-value is 11 W/m2k
- Extra Low Energy (--66): Triple glazed with a laminated inner pane. Excellent level of thermal insulation. Easy to clean feature and anti-dew coating. U-value is 1.0W/m2k.
- Extra noise reduction (--62): Triple Glazed Unit Triple glazed unit and excellent level of sound reduction/thermal insulation. Anti-dew coating to eliminate external condensation. U-value is 0.81 W/m2K
- Enhanced Security (70Q)
- Window Flashings: VELUX provide a range of roof flashing options to suit your roofing material. Flashing kits are integrated perfectly into the roofing material, meaning your window is completely weathertight.
- EDW Tile flashing (Standard): For tiles up to 120mm in profile. Also suitable for pitched roof windows between 15 – 90 degrees.
- EDP Plain Tile: for plain tiles up to 14mm thick. Also suitable for roof pitches between 25 – 90 degrees.
- EDL slate flashing: for slate up to 8mm thick. Suitable for roof pitches 15 – 90 degrees.
- EDJ recessed tile flashing: Sleek and streamlined finish and installed deeper into the roof structure. Installed deeper into the roof structure. Suitable for roof pitch 20 – 90 degrees. For recessed installation in tiles up to 90mm in profile. If using this recessed flashing kit with GPU electric top-hung roof windows, profile set ZWP is also required.
- EDN recessed slate flashing: For recessed installation in slate up to 8mm thick. Sleek and streamlined finish. Installed deeper into the roof structure. Suitable for roof pitch 20 – 90 degrees. If using this recessed flashing kit with GPU electric top-hung roof windows, profile set ZWP is also required.
These are the 6 stages to help you decide which roof window you require. If you need more information, please use these guides, videos and downloads to help.
Bringing light to life.
Frequently Asked Questions
Do you need planning permission for a Velux window?
Generally, there isn’t a need to apply for planning permission for Velux windows.
How much are Velux windows?
Velux windows cost anywhere between £300-£1100, depending on the size.
How much do Velux windows cost?
The labour costs to fit Velux windows will range from £300-£400 per day, which will be an extra addition to the cost of the windows.
How long do Velux windows last?
Velux windows are guaranteed to last for 10 years.
How do I find my Velux window code?
You can easily find the Velux window codes on the top right-hand edge of the roof window when you open it.
How do I know what Velux window I have?
You can match up your Velux window code alongside a data plate, which will tell you the type of window it is and the window size.
How secure are Velux windows?
Velux windows has some of the highest burglary resistance on the roof window market.
How to measure for a Velux window?
When measuring, always think width x height, and take your measurements from the outside of your house.