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Aluminium bi-fold doors are an amazing addition to homes in Dartford.

We supply and install aluminium bi-fold doors in Dartford in many configurations and colours.

Our FENSA approved installers and expert design team are ready to help you get the best bi-fold doors for you.

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  • Materials
  • Materials

    Key Benefits

    Professional Installers

    All of our bi-fold door fitters and installers are FENSA approved. That means you can trust our team to make sure you get the most out of our bi-folds security and thermal features for your Dartford home.

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    Black aluminium bifold doors installed in a kitchen
    Black aluminium bifold door interior

    Thermal efficiency

    Our thermally broken bi-fold door frames will keep the warmth inside. As a natural insulator, it can achieve A+ energy ratings and U-values of 1.32w/m2k. So you can save money on your Dartford home's energy bills.

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    Custom designed

    All of the bi-fold doors are made in premium aluminium. This material can come in over 150 RAL colours to suit any taste and style you require.

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    Light grey aluminium bifold door
    Black aluminium bifold doors installed in an extension

    How do bifold doors work?

    Bi-fold doors work in a concertina, they are made from panels that are on runners so you can open an entire section of your home easily while saving space.

    How secure are bifold doors?

    Bi-fold doors are very secure. They come with multi-point locking systems and toughened glazing so you can be sure they keep your Dartford home safe.
    We use Origin bi-fold doors as they offer the best bi-fold doors on the market.

    How big are bi-fold doors?

    All bi-fold doors are custom made to make sure they fit any opening perfectly. As long as you have an opening about as big as two standard doors there will be a bi-fold door that can fit.

    How much value do bifold doors add?

    Experts say that bi-fold doors can add up to 10% to the value of a home. This is because they add a wow factor to any property.

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    Aluminium Bi-Fold Door Prices Dartford

    Talk to one of our aluminium bi-fold door experts to get an accurate price. Call or send us a message online and we will be happy to help.

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    Close up of aluminium bifold door

    Your Window and Door Journey with FineLine

    Replacing your windows and doors is easy.


    Choose the right windows and doors

    Fill out a form online or visit one of our 11 showrooms to see our range of high-quality windows and doors up close and speak to our expert team for any advice on materials, styles, colours, energy efficiency and glazing. Once you are happy with your choice, we’ll provide you with a free no-obligation quote.


    Place your order with us

    When you want to go ahead with your order, the details have been approved, and we have received your order deposit, our administration team will provide your contract to a surveyor.


    Your surveyor assessment

    The surveyor will contact you to arrange a date that is convenient to come to your home and review the project scope, take accurate measurements and discuss any other matters that need to be considered. We will then confirm the surveyor’s assessment.


    Confirm an installation date

    Our installation department will contact you to arrange a date for your window and/or door installation and your products will be ordered and manufactured, using cutting-edge techniques and industry-leading materials.


    You're ready for your installation

    On the day, our skilled team will arrive at the agreed time to install your products, ensuring minimal disruption. They’ll explain the locking and opening systems and share maintenance tips to keep your products looking brand new. Once your installation is complete, we will contact you to confirm that everything has been finished.

    Begin Your Project

    Get your free quote – with no-obligation to buy. Simply fill in the form below to get started:

      By submitting your details you confirm that you agree to the storing and processing of your personal data by FineLine as described in the privacy statement.


      Get inspired with our product brochures

      Ready to make your dream home a reality but don’t know where to start? Find all the inspiration you need.

      Download a brochure
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      Recommend a friend and we’ll give you a free amazon voucher when that person places an order with us.

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      Multi-award winning company

      Here at FineLine, we’re proud to have won many prestigious awards for our products as well as our work in the community:

      Installer awards 2022
      G21 Finalist
      SEHBAC showroom winner
      Ultraframe designer winner
      Conservatory and orangery awards winner 2019
      NHIC 2018 Consumer confidence award
      G17 Installer of the year
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      We’re one of the largest

      regional retail companies

      Vetted for professionalism, competency & compliancy

      Improving South East homes for more than 50 years

      With show centres across the South East, you’re not far away from achieving your dream home:

      See our show centres

      Our Accreditations

      FENSA Approved
      TSI Approved Code
      Ultra Installer
      QA National Warranties