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Aluminium Casement Windows in Bromley and Dartford, to Maidstone and Sevenoaks

Aluminium casement windows combine the popular casement style with the most modern material available. This creates a window which is undeniably contemporary, with its slim frames that allow an abundance of natural light to flood into your home. You’ll have the choice of over 150+ RAL colours and a number of authentic woodgrain effects, dual-colour options are also offered for the ultimate versatility. You can choose to incorporate any of our window furniture pieces and decorative glazing for a unique design that will add style to any home.

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    Why choose aluminium casement windows?

    Sleek & slender sightlines

    Our sleek and slender frames mean maximum uninterrupted views of the outside

    Thermally advanced design

    Featuring a unique polyamide thermal break, our thermally broken aluminium frames achieve A+ energy ratings and low U-values with ease.

    Effective protection against corrosion

    Finished in an anti-fade, anti-rust and anti-corrosion coating, our aluminium casements are exceptionally strong and weather-resistant.

    Long lasting security

    Able to last up to 45 years, our aluminium casements are tested to PAS 24 as standard.

    100% recyclable

    Durable, strong and endlessly recycled, aluminium is one of the most sustainable construction materials available.

  • Colours
  • Glazing
  • Furniture
  • Colours

    Our aluminium casement windows can be specified in 150+ RAL colours. Whether you prefer a bold and vibrant colour to make your home stand out from the crowd or an understated tone or natural hue, you’re sure to find the perfect colour to match your home’s style.

    White

    White

    Ivory White

    Ivory White

    Light Cream

    Light Cream

    Mid Cream

    Mid Cream

    Green Grey

    Green Grey

    Grey

    Grey

    Smoke Grey

    Smoke Grey

    Warm Grey

    Warm Grey

    Shadow

    Shadow

    Slate Grey

    Slate Grey

    Anthracite Grey

    Anthracite Grey

    Midnight Grey

    Midnight Grey

    Deep Black

    Deep Black

    Dark Brown

    Dark Brown

    Chocolate Brown

    Chocolate Brown

    Warm Red

    Warm Red

    Ocean Blue

    Ocean Blue

    Mid Green

    Mid Green

    Any RAL Colour

    Any RAL Colour

    Glazing

    We offer double glazing and Comfort Glass options that are designed to outperform triple glazing thanks to the inclusion of a tough laminated layer and an effective low-e coating. You can also personalise your new casement windows further with our range of textured and patterned glazing for added privacy or decoration.

    The benefits of upgrading your glazing are truly limitless - the most notable features include increased warmth, reduced energy bills & beating future energy price hikes. For complete peace of mind, we also offer toughened glazing options to enhance your home security further.

    Furniture

    Stylish furniture to make your windows even more complete

    We offer a range of furniture for your windows to look the part. Whether you want the traditional look with monkey tail handles in a vintage finish, or contemporary brushed steel, our elegantly designed handles bring form to functionality and are designed to fit naturally into the user’s hand. You can also choose from our selection of window restrictors and pegs.

    Furniture Handle Options

    Window Handle

    Window Handle

    Monkey Tail Handle

    Monkey Tail Handle

    Pear Drop Handle

    Pear Drop Handle

    Furniture Colour Options

    Black Finish

    Black Finish

    Brass Finish

    Brass Finish

    White Finish

    White Finish

    Chrome Finish

    Chrome Finish

    Steel Finish

    Steel Finish

    Replacement aluminium casement windows in Kent and surrounding areas

    Experience unparalleled warmth and energy efficiency with our windows boasting exceptional U-Values of 0.9, earning them an impressive A+ energy rating. Our innovative Aerogel technology, featuring the lowest thermal conductivity among all solid materials, ensures your home feels cosier than ever while reducing heating bills. Additionally, our windows are equipped with a special polyamide thermal barrier integrated into the frames, effectively trapping heat indoors and keeping the cold at bay.

    Safety is of utmost importance. With finger-safe hinges and side hung hinges that meet fire exit regulations, we prioritise the well-being of your family. Furthermore, our windows are fitted with multi-point locking systems, securing the window frame to the pane at multiple points, thus greatly enhancing durability and protection against forced entry.

    Benefitting from advanced manufacturing processes, our aluminium windows require minimal maintenance. Forget about repainting or varnishing the frames; a simple wipe down with a damp cloth occasionally is all that's needed to remove dirt. With a lifespan of at least 45 years, our windows will continue to perform flawlessly and maintain their pristine appearance.

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    Black aluminium casement window
    Large black aluminium casement window

    Contemporary designs and styles for aluminium casement windows

    With over 150+ RAL colours and finishes to choose from, our sleek and stylish slimline aluminium casement windows can be customised to suit any home. Whether you prefer the modern appeal of Anthracite Grey, the timeless elegance of Chartwell Green, or the classic charm of Cream frames, our aluminium windows offer incredible versatility.

    They come with sustainable EcoMAX double glazing as standard, or you can choose our advanced Comfort Glass option, with both featuring innovative specifications that prioritise insulation. The design incorporates two panes of glass surrounding an argon gas-filled chamber, ensuring optimal thermal performance by keeping warmth inside and cold air out. For enhanced performance, Comfort Glass surpasses triple glazing with the inclusion of a durable laminated layer and an effective low-e coating. Not only do these windows provide excellent thermal insulation, but they also minimise external noise, creating a peaceful environment within your home.

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    Replacing your windows and doors is easy.

    Choose the right windows and doors

    Fill out a form online or visit one of our 10 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:







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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:

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      Our Accreditations

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