Double sliding door

Open up your home to the outside

At VELFAC we believe in light and air, and in windows and doors that create comfortable and beautiful homes and encourage an excellent indoor climate – and that’s why we created our double sliding door.
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Up to 2.5m opening Low treshold Easy to operate Min. 40y life expectancy Made to measure Slim frame design Low maintenance


VELFAC composite windows and patio doors bring together the best of both worlds; the durability and versatility of aluminium and the beauty and warmth of natural wood.


Description and benefits

Double sliding door

Thanks to the unique construction, VELFAC double sliding doors can create an extra-wide, uninterrupted opening of up to 2.5 metres. Ideal for kitchens, dining rooms or garden rooms, each glass pane of the double sliding glass doors moves in two different directions on the track, letting more light into your home and connecting any room to the outside. VELFAC sliding exterior doors are a practical solution to open up your living space, especially when you need to save space.


One of the main benefits of a sliding double door is that it takes up very little space when open, also making it the ideal choice for narrow terraces or balconies – anywhere where space is at a premium.


The signature slim VELFAC frame design delivers a flat, seamless façade when the door is combined with other VELFAC windows, whether fixed or opening. The slim frame also improves energy efficiency meaning no cold spots, and full use of floor space right up to the glass.


VELFAC double sliding doors , also known as double leaf sliding doors, are available in two different versions:



The low threshold version is particularly useful to create an easy access for wheelchairs or prams.

Shape, sizes, colour and prices

Shapes and sizes

All VELFAC windows and doors are tailor made so they can be designed to meet your tastes and needs thanks to our bespoke service. 

VELFAC units can be specified in a wide range of shapes and sizes, used to add architectural impact, or combined to create distinctive bespoke features.


Learn more

Colour options

You can also specify frame colour inside and out, opening function, glass options and accessories, giving you the freedom to install exactly the perfect solution for your needs and taste.

Learn more

Prices - bespoke high quality windows and doors

Our windows and doors are sold exclusively through our distributors, a UK wide network of professionals selected for their excellent product and technical knowledge.

Since we don’t work with standard sizes or configurations, each quotation will be created specifically for your project. To learn more about how to keep your budget low when ordering VELFAC windows and doors, read our page

Get a quote from a VELFAC distributor

Warranty, delivery & installation

Windows and door warranty
VELFAC products are designed and manufactured to exceptional levels of quality, resulting in low maintenance operation and long life span.


We are so sure about the quality and durability of our products to offer a comprehensive product warranty of 12 years in the case of windows and 5 years in the case of casement, sliding and external doors.


See our product warranty

Delivery and installation 
Your VELFAC distributor can install your windows for you, ensuring the installation of the product is performed to the highest standard. If preferred, you can manage the installation yourself, using our recommended installation guide.

More about delivery and installation

Tested and certified

Certifications, marks and memberships

All VELFAC products and processes are thoroughly tested and quality assured.  

See our certifications

Windows and doors tested to the extreme
Hundreds and thousands of customers test VELFAC windows and doors every day. Throughout Europe, millions of windows have stood the test of time, but despite this track record, we still maintain a demanding testing programme to ensure our system continues to meet - and exceed - all necessary standards.

More about out test programme

Technical info on double sliding doors

Visit our technical database
See our product details, explore opening functions and download drawings, instruction and other documents for the VELFAC windows system.

See technical information on our double sliding door

See examples of double sliding doors

Frequently asked Questions


When you are considering a double sliding door, there may be many relevant questions that you want answered. We have gathered some of the frequently asked questions about double sliding doors right here.


Please remenber that if you have any questions you are more than welcome to contact us. We are ready to help. 

Double sliding doors with or without frames?

"Frameless" doors may allow an higher level of noise to penetrate from outside, and can also have a reduced thermal insulation compared with more visible frames windows and doors systems. VELFAC sliding doors have a slim profile of 54mm which allows an uninterrupted view without compromising on performance.

Which glass is best for sliding doors?

With VELFAC doors you can specify different types of glass depending of you specific needs.


  • If the design of your project requires a reduction in solar heat through the glazing, e.g. on South or West facing façades, then you should choose VELFAC SUN. VELFAC SUN is a neutral colour coating, which is very close to the appearance of standard glass, and delivers a natural internal finish and a clear view of the external environment, but offers greater protection against unwanted solar gain.

  • VELFAC DÉCOR opaque glass should be used in areas where privacy and security are required. VELFAC Décor is available in five different designs: Satin, Pacific, Cotswold, Carré or Matt Laminated

  • VELFAC SOUND - ideal to reduce noise coming from the outside

  • VELFAC SAFETY glass can be supplied as laminated or toughened, both types offering significant safety benefits. Safety glass breaks harmlessly, therefore reducing the risk of injury to residents.


See more on glass options

How to adjust double glazed sliding patio doors?

We have created some short videos to show you how to adjust VELFAC windows and doors and make them run optimally. You can find them here 

Are sliding doors practical to use?

Sliding doors offer more controlled ventilation than bifolding doors because allow you to open the doors partially to ventilate each room without making your whole house cold.


VELFAC sliding doors are also very easy to operate even with only one hand, despite the size or weight of the door.

What set VELFAC doors apart?

VELFAC sliding doors are in line, meaning that when the VELFAC doors are closed, the sliding section and the fixed section are flush. The VELFAC sliding door has the same sightline of the windows, giving a uniform design.

Uniform frame appearance

All VELFAC windows and doors have the same frame appearance,

whether they are fixed or opening, adding a sleek, flush and uniform finish to every home.


Related products

Single sliding door

VELFAC single sliding patio doors, also known as single leaf sliding doors, combine performance, functionality and style. If you are looking to increase the levels of natural light in your home whilst also benefiting from outstanding thermal efficiency, this is the product for you.



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Get a quote on VELFAC windows and doors

Tell us about your project, and we will make sure you get a no obligation quote from your local distributor.


Certified & quality tested

All VELFAC products are thoroughly tested and quality assured. VELFAC meet - and exceed - all necessary standards.