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Made to Measure Windows to Match Any Home

All our windows are made to fit the specifications of your home, but if you are looking for something a little different or have an unusually shaped space to fill, we offer a bespoke window service.

Made in uPVC or aluminium, we can create any shape or design you require. Our bespoke windows add a special appeal to your home. Choose from our advanced EcoMax Glass or Comfort Glass options, and over 150 RAL colours and wood effect finishes.

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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?

    Our made-to-measure window service is available to fill the gap when it’s not a square or rectangle. We class bespoke windows as those that deviate from the conventional rectangular casement window shape. It might include round, half-round, arched, octagonal, pentagonal, square, or triangular shapes. A beautifully crafted window can become the focal point of any room.

    Beyond the window shape there are many other options to choose from, including window frame colour options, a choice of aluminium or uPVC, different glazing options and a large collection of attractive accessories. Whether your home is traditional or modern, we will be able to supply and fit any window shape you need.

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    What bespoke windows can do

    Limitless window designs

    Entirely tailored to your design requirements for shape and style.

    Energy saving design

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

    Exceptional home security is locked in

    Our bespoke uPVC windows are able to last up to 35 years, aluminium around 45 years.

    Low maintenance

    Our bespoke uPVC windows offer a maintenance-free design that won't rot, crack, warp, or fade throughout their lifespan.

    10 years’ product guarantees

    All new windows carry a standard guarantee for 10 years on fit, function and finish.

    Environmental protection

    As well as offering EcoMax Glass, our bespoke uPVC windows incorporate a recycled section and are fully recyclable.

  • Styles
  • Colours
  • Glazing
  • Frame Options
  • Furniture
  • Additional Features
  • Styles

    Colours

    A wide range of traditional and statement colours from the RAL colour palette are available in aluminium, as well as a range of authentic wood stain finishes. Dual colour options are also available. Find bespoke window colour inspiration here!

    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

    Our uPVC and aluminium windows come with EcoMAX Glass™, one of the most sustainable glass units on the market. You can also choose Comfort Glass for higher levels of thermal efficiency, security, and noise reduction, or decorative glazing, such as stained glass, floral patterned, or modern etched glass.

    Frame Options

    Choose the perfect profile for your finished window

    Choose from chamfered, a contemporary, straight-edged style, ovolo, a more traditional, decorative finish or flush sashes that blend with the external face of the window.

    Chamfered Frame

    Chamfered Frame

    Flush Sash Frame

    Flush Sash Frame

    Ovolo Frame

    Ovolo Frame

    Furniture

    Authentic furniture for your sliding sash windows

    A range of window furniture options adds a personal touch to your windows. Choose from elegant designs for handles and 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

    Additional Features

    Authentic Timber Look Cill

    Radlington Cills are deeper nosed cills, one at the standard 30mm height and another at a 55mm height; they are reproductions of timber cills.
    Window with a white cill

    Overhead Ventilation

    In overhead, concealed ventilation the external trickle vent is hidden on the head of the outer frame, providing a much-improved finish.
    Window with an overhead concealed vent

    Bespoke uPVC windows in Essex, Suffolk, Surrey

    uPVC is a popular window material choice for any style of window. It is an established material and manufacturing process that can easily be adapted to any shape—it also tends to be the least expensive option. uPVC still provides the exceptional performance you’d expect of a replacement window.

    Our triangle, thin and curved uPVC windows can last up to 35 years, and are effectively maintenance-free. We finish all of our uPVC windows in an anti-fade protective coating that also eliminates any possibility of the material cracking, splitting or warping.

    Bespoke uPVC windows are a versatile option. They can be designed in many different colours, including Chartwell green, Anthracite Grey, and classic white. If you’re looking for a more classical style, we also offer uPVC wood effect finishes in traditional timber palettes. They’ll easily add character to both historic and newer properties.

    uPVC is an excellent choice to boost your home’s energy efficiency as its multi-chambered profile keeps the warmth inside your home. Additional features add to the energy performance, including a warm edge spacer bar, and EcoMax double glazing and Comfort Glass options.

    uPVC Bespoke Windows
    Bespoke arched uPVC white windows
    Large aluminium bespoke window

    Slimline bespoke aluminium windows made to measure in the South East

    Aluminium windows have a distinctive, thin-framed design which adds a contemporary touch to your home. Their smooth finishes can be specified in 150 RAL colours and a range of elegant wood effect finishes, to complement perfectly any style of home.

    Aluminium is among the more robust construction materials, making it a superior choice for replacement windows. Able to last at least 45 years, they’ll protect your home from unwanted intruders, without weakening over time. Our high-quality aluminium resists corrosion, is effectively maintenance-free, and offers good energy efficiency.

    Aluminium Bespoke Windows

    Energy-efficient custom-made unique windows

    Whether you’re replacing tired windows or installing new, unique windows from scratch, you’ll also benefit from increased thermal insulation. New double glazing units include warm edge spacer bars and beaded, multi-chambered frames for a draught-free and more efficient design.

    Our EcoMax double glazing can achieve energy A ratings with two dense layers of glass around an argon gas void. Comfort Glass combines two glazing panels with a built-in laminate layer and a transparent Low-E coating that stops 56% more internal heat from escaping, making it a much more effective insulator than triple glazing.

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    uPVC bespoke window gable style
    White uPVC bespoke window

    Shaped double-glazed windows will upgrade your home security

    As with all of our windows, security is always a priority and your bespoke window will include all of the safety features of our traditionally shaped windows. Durable designs, they resist forced entry, whilst also protecting you from the elements.

    Our bespoke windows are fitted with multi-point locking systems and are tested to meet security standards. As your unique window will be tailor-made to your individual specifications, we can include additional security elements for greater peace of mind.

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    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

    Popular Colours:

    Deep Black
    Anthracite Grey
    Smoke Grey
    White
    Bay Windows

    Bay Windows

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

    Popular Colours:

    White
    Elephant Grey
    Anthracite Grey Grained
    Black Brown
    Heritage Windows

    Heritage Windows

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

    Popular Colours:

    No. 10 Black
    Eclectic Grey
    Corse Lawn
    White
    Tilt and Turn Windows

    Tilt and Turn Windows

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

    Popular Colours:

    White
    Black Brown
    Anthracite Grey Grained
    Elephant Grey
    Conservation Windows

    Conservation Windows

    • Multi-point locking system
    • Achieve A++ energy ratings
    • Multi-point locking system

    Popular Colours:

    White
    Black Brown
    Anthracite Grey
    Elephant Grey
    uPVC Flush Sash Casement Windows

    uPVC Flush Sash Casement Windows

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

    Popular Colours:

    White
    Anthracite Grey Grained
    Elephant Grey
    Black Brown
    Bespoke Windows

    Bespoke Windows

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

    Popular Colours:

    White
    Deep Black
    Anthracite Grey
    Smoke Grey
    uPVC Windows

    uPVC Windows

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

    Popular Colours:

    White
    Anthracite Grey Grained
    Black Brown
    Elephant Grey
    Aluminium Windows

    Aluminium Windows

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

    Popular Colours:

    Deep Black
    Anthracite Grey
    Smoke Grey
    White

    Your Window and Door Journey with SEH BAC

    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.

    Man working on machine

    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.

    Two people who identifies as men Installation windows.

    FAQs

    How much will new bespoke windows cost?

    Thermally sound, industry-accredited custom-made windows must be individually priced to take into account manufacturing to size and any features you wish to specify. We offer a range of finance options to spread the cost of new windows. You can read more about what affects the price of double glazed windows on our site.

    How do I know if my windows need replacing?

    There are always obvious signs like poor fit, rot in wood, loose fittings, and inconsistent lock operation, but sometimes it’s just time for a change. New windows can have a big impact on the outward appearance of your home. See our blog for more on this.

    Which window material is best?

    All our windows are designed for visual appeal as well as security, thermal efficiency and durability. Complete with industry-leading and highly accredited hardware, any of our award-winning replacement windows could transform your home. Read more

    What is A rated double glazing?

    Energy efficiency is often the top priority and it’s no wonder as the bills keep rising. The British Fenestration Rating Council (BFRC) rates window energy performance and publishes results to help you decide which windows are best for you. Read more.

    Begin Your Project

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







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

      This site uses Akismet to reduce spam. Learn how your comment data is processed.

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      Multi-award winning company

      Here at SEH BAC, 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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      The best place to narrow down your options and pick up on any points of interest.

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      Astonishingly good or room for improvement, it’s all here. Thank you to all our customers old and new. We really appreciate your reviews. Really. Yes, really, really.

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