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Velux Sloping and Vertical Combination Window

Advanced technology protects from the elements

Award winning quality and finish

£418.58 ex. VAT£502.30 inc. VAT

Please select your options to purchase
Lead Time: 3-5 working days


Velux Sloping and Vertical Combination Window

Combine vertical and sloping white polyurethane or white painted roof windows to expand your view and increase daylight. Ideal for one and a half storey properties and suitable for roof pitches between 15 and 55 degrees..

Follow the steps to find the best solution for your room:

  • Decide on your combination - Single, Twin or Triple.
  • Select your white polyurethane or white painted roof window(s) in size MK04, MK06 or MK08.
  • Choose from Top Hung, Centre Pivot or Velux Integra.
  • Select your bottom vertical element(s) - size MK31 or MK35. The white painted vertical element is bottom-hung and opens inwards for added ventilation and cleaning. The white polyurethane vertical element is a fixed unit.
  • Select the appropriate flashing system for your roof window size, combination and roofing material.

If selecting twin or triple combinations, Velux recommend the use of an EBY trimmer for added support and a harmonious internal finish.

Please Note: The Velux Sloping & Vertical Combination Roof Window in a white painted finish with either Noise Reduction or Triple Glazing has a lead time of approximately 16 working days.

Please Also Note: You are only purchasing the bottom roof window. You will need to purchase the top roof window seperately. Click here for our Velux range.


Download the Velux: MyDaylight app where you can easily redesign your existing space, add daylight, get a realistic simulation of it and then ‘try it out’ with the 360° feature or in virtual reality.

For Velux: MyDaylight download to Android, click here.

For Velux MyDaylight download to IOS, click here.

  • For Roof Windows and Flashing, Velux offer a 10 year guarantee as standard.

    For more information click here.

  • For Velux technical data, click here.

  • If you are not satisfied with any LB Supplies products you can return them within 14 days of purchase as long as they are unused and in their original condition and packaging. If you purchased from our website and would like to return your products, please download the LB Supplies returns form below and include it with the return. Once we′ve received your unused products, we′ll refund you the amount of the original purchase, excluding any delivery costs, using your initial method of payment. Some products may incur restocking charges. For all returns and any exchanges, you are required to cover the cost of the return delivery to our offices.  For your own security, we recommend using a recorded delivery service when sending goods to us.

    Click here for a product returns form.