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Bay Windows in Bromley and Dartford, to Maidstone and Sevenoaks

Bay windows became popular during the Victorian era. Their protruding design allows a wealth of natural light to enter a building creating an airy and spacious ambience inside. Their curved design creates a convenient window alcove where you can relax with a book or even install a window seat.  The interior angle of the bay windows can be specified as 90, 135, or 150 degrees depending on your requirements, adding additional living space to your home. We can replace your existing bay windows with modern alternatives. If you don’t have bay windows, we can build a roof and base to easily install them.

We offer bay windows in three high-performance materials; uPVC and aluminium. Available in over 150+ RAL colours and a variety of wood effects, they can effortlessly suit any style of home. They can be fitted with either casement or sash windows, depending on your personal preferences. Not only will they add style, but our double glazing or comfort glass bay windows will significantly improve your property’s energy efficiency, security and weather resistance.

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    Desired Aesthetic

    Incorporate casement, sliding sash or heritage window styles for the look you want

    The Look You Want

    Choose from a range of colours and finishes to suit the exterior of your home.

    Strong

    The windows are connected using a strong, structural bay pole assembly or, for square bay windows, corner posts

    What are bay windows?

    Bay windows are characterised by their designs protruding from the main walls of the room. With the windows angled away from the house, the space in your room instantly feels greater. They usually have an inside angle of 90, 135 or 150 degrees. However, we can create any combination of windows for you. Using our unique bay post technology, we can achieve the angle that is perfect for your home. They can also be used to incorporate stylish seating areas that provide the ideal place to settle down with a book and take in your beautiful outside views.

    Why choose a bay window?

    More space & light

    Designed to protrude from the building, bay and bow windows flood spaces with natural light to create the sense of more space.

    Extra character & kerb appeal

    From restoring traditional property features to adding character to more modern homes, a new bay or bow window is the perfect option.

    Energy saving design

    Thanks to the streamlined design and components, today's bay and bow windows offer many incredible energy efficient features.

    Superior security

    Featuring locks embedded into the frame, bay and bow windows add an extra level of security as they can't be picked or drilled from the outside.

    Enhanced comfort & value

    Offering better levels of ventilation, due to the additional space and light bay windows provide, they can add considerable value too.

    Peace of mind

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

    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
    Bespoke Windows

    Bespoke Windows

    • Available in high-performance uPVC or aluminium
    • U-values as low as 0.8 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
  • Styles
  • Colours
  • Glazing
  • Frame Options
  • Furniture
  • Styles

    Colours

    Our realistic wood effect finishes are available in white, black, oak, cream, and natural. or the ultimate in customisation choose any RAL colour for your uPVC or aluminium windows.

    uPVC bay 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 bay 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 double glazing and Comfort Glass are available in bay and bow window 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. Allowing you to fully customise your windows to your personal style, we offer a variety of charming Georgian bar options too. For complete peace of mind, we also offer toughened glazing options to enhance your home security even further.

    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

    Modern and traditional bay window styles

    As bay windows have a distinctive curved design, they will add style to any home. And with a plethora of customisation options, we can design both modern and heritage styles to meet any personal preferences. Depending on the material you opt for, you could have the choice of over 150+ RAL colours and a range of authentic wood effects. You could even opt for a dual colour design for the ultimate versatility.

    With three materials available, and either double glazing or comfort glass options, you can be sure to get a made-to-measure design that’s unique to your home. We can include decorative glazing, such as stained or etched glass, and any of our window furniture pieces for the finishing touches.

    Bay windows will give the illusion that the room is larger than it is as they expand further than the pre-existing wall and let in much more natural light. So not only will they add kerb appeal on the outside, but on the inside of your home you’ll also reap the benefits.

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    uPVC bay windows in Tonbridge, Rochester and Canterbury

    uPVC is the best choice for homeowners looking for a cost-effective option. Although it still offers superb performances in all aspects. With a multi-chambered frame and A energy ratings as standard, it will enhance your home’s energy efficiency. The modern profile of uPVC frames is also incredibly durable, so they’ll continue to perform like new regardless of the weather conditions outside.

    With a protective coating, the frames won’t fade, crack or split over their lifetime, which exceeds 35 years. A key benefit of our uPVC windows is that they don’t need any upkeep, so they’re ideal for the busy lifestyle of homeowners nowadays.

    Our uPVC windows offer a plethora of flexible designs. With over 150+ RAL colours and a number of authentic wood effect finishes, they can easily add style to any type of property.

    uPVC Bay & Bow Windows

    Ultramodern and slimline aluminium bay windows

    If you’re looking for a modern bay window design, then aluminium is an excellent choice. It has unique slimline frames which will add a contemporary touch to your home. The thin-frame design will also let in even more light for a bright and airy home. You can choose from over 150+ RAL colours, with a smooth finish that is sure to add value to your home.

    Aluminium is known to be one of the strongest materials used in the industry, meaning your home will be protected from forced entry. The resilient frames have also been tested to extreme weather conditions, and have proven time and time again that they won’t rust, corrode or split. With a lifespan of at least 45 years, they’re a great investment for any home.

    They use a thermally broken frame which can achieve A+ energy ratings. With naturally insulating features, upgrading to our premium aluminium bay windows will eliminate energy wastage. This will significantly improve your home’s energy efficiency, whilst reducing your carbon footprint.

    Aluminium Bay Windows
    Grey aluminium bay window
    Full aluminium bay window installation

    Improve your home’s energy efficiency with replacement windows

    As with all our replacement window options, our bay windows are sure to improve the thermal performance of your home. Whether you’re looking to upgrade non-performing bay windows, or get new ones, when professionally installed by our team of industry experts, you’ll see a noticeable difference in the warmth of your home. You’ll be able to save money on your heating bills as less energy will be required to warm the rooms.

    Depending on the material and specification you opt for, U-values as low as 0.8 W/m2K can be attained. This is because we include a range of advanced features, such as warm edge spacer bars, beaded frames and advanced glazing panels. They work together to keep the heat within your home and stop any cold elements from entering. Improve your home’s carbon footprint by upgrading to our industry-leading bay windows.

    Bay windows have a flexible design, so we can install them with either our double glazing or comfort glass. Double glazing utilises two panes of glass that surround a chamber filled with argon gas. This is able to actively retain heat inside, whilst stopping draughts from entering your home. You’ll benefit from a more comfortable temperature inside of the room all year round. Comfort glass includes an additional laminated layer. It is much more energy-efficient than a standard glazed window. Due to it having extra thermal materials, it’s ideal for properties in noisy areas as it excels in its noise reduction performances.

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    Improve your home security by upgrading to robust bay windows

    When it comes to security, our bay windows incorporate state-of-the-art locking systems to protect your property. This includes multi-point locks which bolt the windowpane to the frames at several points, increasing its resilience from forced entry. All of our window specifications are continuously tested to meet strict standards, giving you peace of mind.

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    White aluminium bow window
    White aluminium bay window

    Planning permission for bay windows

    Bay windows are the only style that require planning permission because they are classed as an extension. This is because the window protrudes further than the existing wall of a home.

    If you want to replace an old bay window, then you won’t need to get planning permission. However, if you are looking to install new bay windows where the existing window isn’t a bay style then you will need to apply for planning permission. As leading installers, we can advise on the best solution for your individual requirements. Get in contact with one of our experts or visit a showroom to discuss a bay window installation for your home.

    Your Window and Door Journey with FineLine

    Replacing your windows and doors is easy.

    01

    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.

    02

    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.

    03

    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.

    04

    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.

    05

    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.

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