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steps to exterior white patio leading into dining area
exterior view patio with furniture and open windows into dining area
Woman reading on couch with open patio doors and garden views
folding doors open onto patio area
open bi-fold patio doors with dining table and chairs

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    Klosen – Slimline Bifold Doors

    Create an aura of space and elegance by installing prestigious slimline bifold doors into your home. Slimline bi fold doors fold as to open, adding a modern edge to your property with an exsquitist, stylish touch. Turn a regular entrance way into one of allurement and envy.

    Key features & benefits

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    Thermal Insulation

    The material has built-in thermal properties which will improve heat insulation for your home.

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    Natural Light

    A thin frame and maximized glass will enable a source of natural light into your home, making your rooms brighter.

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    Aesthetic Design

    The slimline range will integrate a beautiful aesthetic with traditional surroundings that will make your home contemporary.

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    Strong & Seamless

    Aluminum is a strong & lightweight material which will allow a smooth but sturdy function.


    Sometimes referred to as aluminium bi fold doors, and also written as ‘bi-fold’ or ‘bifold’, slimline aluminium doors define themselves as durable and a popular alternative to the traditional door. Engineered with the homeowner in mind, slimline bi fold doors add sophistication to the entrance way of your home, property or commercial building.

    Fashioned out of high-quality aluminium components, these doors are designed to create space in any room, with large panels of glass. With a strong, discreet user-friendly lightweight outer frame, our doors also flood your property with natural light.

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    Choosing a slimline bi fold door is a contemporary choice for blending luxury with assistance to modern day living. With an air of prestige, they benefit its owners with additional light to produce a spacious and well-lit entrance way and offer unrestricted views. Installing a slimline bi fold door into your home usually drives up property value as well; a feature that is often overlooked by homeowners in attempt to improve their home.

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    Our Customer Reviews

    Great Price & Quick Delivery

    This company have been amazing and came to our rescue when another company let us down repeatedly over a period of 4 months during our building work. We got a great price, a quick delivery time and the same product but this time with lovely fitters who knew exactly what they were doing. Now we will will have a warm house for christmas HOORAY !! We went for 3 large sliding doors and the quality of the product is excellent . Many thanks to Audrey Cieran and the team I would recommend highly
    - Esther Young


    Delighted with the product and the service provided by Klosen. The installation team were excellent and very helpful.
    - Sara Hyem

    Very Happy

    We’ve been very happy with the work Klosen recently completed for us. They installed a variety of windows and sliding doors for us on our new build project. All of the information we requested early on was provided promptly and they were great with our architect. Very happy with the end result and the colour they helped us chose.
    - Sarah Munton

    Types of  Slimline Bifold Doors we offer

    If you are unsure about opting for a slimline bifold door in your home, we also offer slimline sliding doors. These operate similarly but with larger panels that slide open and close and do not fold. Both are designed to be effortless and we work with a variety of brands to bring you the beta aluminium doors on the market.

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    Get in touch with us today to receive your free quotation!


    How long does installation take?

    Installation varies depending on the size of the doors, the brand, finish and the amount you are installing. You will get an estimated installation time before work begins.

    How much do slimline bifold doors cost?

    Cost of slimline bifold doors depends on the measurements of your entrance, the brand, style and finish. Once we have this information we are able to provide a no-obligation quote for you.