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Bespoke Windows in Bromley and Dartford, to Maidstone and Sevenoaks

When you want something a bit different to fit an unusual space or create a striking focal point in your home, our bespoke windows are for you. Using uPVC or aluminium, we will work with you to design a unique window to meet your exact specifications. You can choose from over 150+ RAL colours and either our double glazing or comfort glass with decorative glazed sections. Down to the smallest details, our bespoke windows are unique to each homeowner.

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    uPVC bespoke window interior

    Glazing

    Choose from our EcoMax Glass™ and Comfort Glass options

    Non-Conventional

    Whether you want a round, half round or arched window shape, or an octagon, pentagon, square or triangle one, the choice is yours.

    What are bespoke windows?

    Bespoke windows are windows that are not the conventional rectangular casement window shape. This could be anything from round, half-round, arched, octagon, pentagon, square, or triangle. A beautifully crafted window can become the focal point of any room, with their exciting design tweaks setting your home apart from the crowd.

    Our made-to-measure window service really is exactly as it describes. With a plethora of window frame colour options, 2 high-performance materials, 2 advanced glazing options and a large collection of attractive window furniture elements, the styles and designs are endless. From custom triangle windows to curved windows, we can cater to even the most individual requirements! Whether your home is traditional or modern, you could enjoy the exciting and interesting touch of a bespoke shaped window.

    Why choose a bespoke window?

    Limitless window designs

    Bespoke windows are the most customisable windows, tailored to your home's unique style.

    Seamlessly matched to your existing aesthetics

    No matter the style or colour of your existing windows and doors, bespoke windows can be easily matched to any style you can think of.

    Energy saving design

    Thanks to the streamlined design and components, bespoke windows offer many incredible energy efficient features.

    Superior security

    Bespoke windows utilise some of the strongest hardware & multi-point locking systems around.

    Low maintenance

    Our bespoke uPVC windows can last up to 35 years, while our aluminium bespoke windows remain maintenance-free for at least 45 years.

    Peace of mind

    Backed by a 10-year guarantee and a commitment to exceptional craftsmanship and customer satisfaction.

  • Styles
  • Colours
  • Glazing
  • Frame Options
  • Furniture
  • Styles

    Colours

    Our realistic wood effect finishes are available in white, black, oak, cream, and natural. Use our Kolor Bond system to create the perfect shade for you. For the ultimate in customisation choose any RAL colour for your uPVC or aluminium windows.

    uPVC bespoke window colours

    White

    White

    Clotted Cream

    Clotted Cream

    Pearl Grey

    Pearl Grey

    Chartwell Green

    Chartwell Green

    Elephant Grey

    Elephant Grey

    Slate Grey

    Slate Grey

    Slate Grey Grained

    Slate Grey Grained

    Basalt Grey

    Basalt Grey

    Anthracite Grey

    Anthracite Grey

    Anthracite Grey Grained

    Anthracite Grey Grained

    Black Brown

    Black Brown

    Steel Blue

    Steel Blue

    Racing Green

    Racing Green

    Ruby Red

    Ruby Red

    Turner Oak

    Turner Oak

    Irish Oak

    Irish Oak

    Golden Oak

    Golden Oak

    Rosewood

    Rosewood

    Mahogany

    Mahogany

    Walnut

    Walnut

    Dark Oak

    Dark Oak

    Aluminium bespoke window colours

    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

    Both EcoMax double glazing and Comfort Glass is available in bespoke styles and we can also offer a 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.

    Our decorative glazing range includes classical stained glass, textured and patterned options. If you’re looking for charcoal, oak or stippolyte effects, we can easily fit this for a unique design to complement your home’s existing character.

    Frame Options

    Choose the perfect profile for your finished window

    We have a number of distinctive styles of frame to choose from. The chamfered option is a contemporary, straight-edged style while the ovolo option provides a more traditional, decorative finish. Our flush option sees sashes that finish flush with the external face of the window.

    Ovolo Frame

    Ovolo Frame

    Flush Sash Frame

    Flush Sash Frame

    Chamfered Frame

    Chamfered Frame

    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

    Pear Drop Handle

    Pear Drop Handle

    Monkey Tail Handle

    Monkey Tail Handle

    Furniture Colour Options

    Black Finish

    Black Finish

    Brass Finish

    Brass Finish

    White Finish

    White Finish

    Chrome Finish

    Chrome Finish

    Steel Finish

    Steel Finish

    The window styles, shapes and designs are endless

    We can create made-to-measure windows in either uPVC or aluminium. Depending on the material, you’ll have the choice of up to 150+ RAL colours and an array of woodgrain effects. So whether you’re looking for a contemporary window style or a traditional design, we can install the perfect solution.

    Bespoke windows come in all shapes and sizes. Whether you want oversized windows to maximise natural light intake, or small windows for installation in shower rooms, cloak rooms, or utility rooms, we’ll be able to meet your requirements. Some of the shapes available include round, arched top, triangular, hexagonal, and octagonal. But no shape is too niche for us; the designs are limited only by your imagination.

    You can choose to include stained glass, obscured glass, or textured glass sections to increase privacy or enhance your home’s individual character. This is a sure way to add a distinctive touch to your new windows.

    uPVC Bespoke Windows
    bespoke window
    Large aluminium bespoke window

    Tailor designed uPVC windows in Tonbridge, Rochester and Canterbury

    uPVC is incredibly versatile, so you’ll have plenty of choice. The frames can be finished in over 150+ RAL colours and a number of authentic woodgrain effects. From sleek black, to monochrome grey to a vibrant green frame, we have a style to complement any home.

    Not only will bespoke uPVC windows add style to your home, they also excel in their performance, whilst being the most cost-effective window material. This is due to it being readily available thanks to modern manufacturing processes.

    With robust multi-chambered frames, thermal insulation and home security will be significantly improved. We finish our uPVC frames in a protective anti-fade coating, so they’ll continue to look like brand new for at least 35 years. Even better, they won’t rot, corrode or warp and require only the occasional wipe with a damp cloth to remove any dirt every once and a while.

    Aluminium Bespoke Windows

    Custom-designed slimline aluminium windows

    If you’re looking for an ultramodern aesthetic, then bespoke aluminium windows are an excellent choice. They boast unique thin frames, which from the outside will add a contemporary touch to your home. From the inside, this means you’ll be able to enjoy wider views of the outdoors and they’ll let in more natural light.

    Modern aluminium can be installed in over 150+ RAL colours and a number of wood effects. Whichever bespoke design you choose, their smooth and slimline appearance will add kerb appeal to your home.

    Aluminium windows are a great investment as they have a lifespan of at least 45 years. With an anti-fade coating, they’ll continue to look like brand new without requiring any maintenance. In addition, our high-quality aluminium won’t rust, corrode or warp. A naturally insulating and incredibly durable material, you’ll benefit from increased energy efficiency and home security.

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    uPVC bespoke window gable style
    White uPVC bespoke window

    Add style and energy efficiency with bespoke windows

    Our bespoke windows may look different from the conventional, but their energy efficiency capacity is equally just as high. Like all our window options, our bespoke 'A' energy rated windows will help to boost your home’s thermal performance, saving you money on your heating bills whilst improving your standard of living.

    Whichever window material you opt for, you can be sure that they’re fitted with a number of advanced features to heighten its thermal performance. This includes warm edge spacer bars, high-tech glazing and intricately beaded frames.

    Our custom-made windows can be fitted with either our double glazing or comfort glass and can achieve very low U-values. Double glazed tailor made windows use two panes of glass that encompass an argon gas filled chamber. This specification is able to break up the airflow so the warmth is kept inside and the draughts kept out.

    For homeowners looking for even further energy efficiency, our comfort glass window options includes an additional pane of glass. With 5x better thermal capabilities than a standard glazed windows, it’s the ideal solution for properties exposed to tough weather conditions or in noisy areas.

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    Custom-shaped windows will heighten home security

    When you need an unusually shaped window, our bespoke window design service is the perfect choice to add both style and security. We use only the highest-quality materials and when combined with industry-leading manufacturing techniques, your home’s security won’t be compromised. We test all of our made-to-measure windows to strict security standards.

    We fit all of our windows with state-of-the-art locking systems, including multi-point locks which bolt the pane to the frame at several points. This means that in the unlikely case that someone tries to break into your home, they won’t succumb to strong forces. In the same way our bespoke windows offer excellent weather resistance. Whether it be extreme winds or heavy rain, they won’t let you down.

    As they’re uniquely designed to individual requirements, we can include additional security features for homeowners looking for greater peace of mind.

    Custom arch shaped uPVC window in white
    Bespoke made curved arch window in uPVC

    Explore local double glazing options in Kent

    Discover top-quality double glazing solutions in the picturesque locations of Kent. Our windows, designed to enhance energy efficiency and aesthetic appeal, are available in Dartford, Maidstone, Bromley, Canterbury, Sevenoaks, Tonbridge, Folkestone, Sittingbourne, Ramsgate, Margate, Tunbridge Wells, and Ashford. Explore our dedicated local landing pages to find tailored information about double glazing options in each of these vibrant areas. From modern designs to classic styles, our windows are crafted to suit the unique character of your home.

    Whether you're looking for exceptional thermal performance or a stylish upgrade, our double glazing solutions cater to your specific needs. Navigate through our comprehensive range and connect with the perfect windows for your property in Kent and its surrounding regions.

    Compare Window Styles

    Casement Windows

    Casement Windows

    • Available in high-performance uPVC or aluminium
    • U-values as low as 0.8 W/m2K
    • Multi-point locking system
    Bay Windows

    Bay Windows

    • Available in high-performance uPVC or aluminium
    • U-values as low as 0.8 W/m2K
    • Multi-point locking system
    Heritage Windows

    Heritage Windows

    • Made from uPVC to replicate timber
    • Achieve A++ energy ratings
    • Multi-point locking system
    Tilt & Turn Windows

    Tilt & Turn Windows

    • Available in high-performance uPVC or aluminium
    • U-values as low as 1.0 Wm2K
    • Multi-point locking system
    Conservation Windows

    Conservation Windows

    • Made from uPVC to replicate timber
    • Achieve A++ energy ratings
    • Multi-point locking system
    Sliding Sash Windows

    Sliding Sash Windows

    • uPVC authentic timber-alternative sash window
    • U-values of 1.4 W/m²k or lower
    • Multi-point locking system
    Flush Sash Windows

    Flush Sash Windows

    • uPVC authentic timber flush sash window
    • U-Values as low as 1.3 W/m2K
    • Multi-point locking system
    uPVC Windows

    uPVC Windows

    • Robust and durable frames
    • Available in seven styles
    • 20 years life expectancy, maintenance free
    Aluminium Windows

    Aluminium Windows

    • Minimalist frames and sightlines
    • Available in four styles
    • Available in four styles Over 30 years life expectancy, minimal upkeep

    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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      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
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      Ultraframe designer winner
      Conservatory and orangery awards winner 2019
      NHIC 2018 Consumer confidence award
      G17 Installer of the year
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      Improving South East homes for more than 50 years

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