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Custom-Made Bespoke uPVC Windows

Create custom windows that are any shape or size. Our custom-designed window services are perfect if you have an elaborate idea or if you have an unusual space that could benefit from a window. Whether you have a dark room that could do with some light or want to create a fabulous foil point for your home we will work with you to bring your ideas to life.

Choose from a chamfered or ovolo profile depending on whether you want your windows to feel traditional or contemporary. With a range of colours to choose from and an array of authentic wood effect finishes, they not only look great, your uPVC bespoke windows also offer impressive thermal efficiency, home security and weather resistance.

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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.

  • Colour and Finish Options for Bespoke uPVC Windows
  • Glazing
  • Frame Options
  • Furniture
  • Additional Features
  • Advice + Guidance
  • Colour and Finish Options for Bespoke uPVC Windows

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

    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

    Glazing

    Our uPVC 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.

    Ovolo Frame

    Ovolo Frame

    Flush Sash Frame

    Flush Sash Frame

    Chamfered Frame

    Chamfered 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

    Advice + Guidance

    Replacement uPVC bespoke windows in Ipswich, Oxford, Essex and Suffolk

    Made from durable uPVC, your shaped windows will provide your home with superb security and protection from the elements. The robust frames won’t weaken or split when exposed to extreme forces, and with secure multi-point locking mechanisms, these windows will deter intruders and keep your home and family safe.

    You don’t have to compromise on your home’s comfort when choosing stylish windows. Bespoke uPVC double glazed windows can either be fitted with advanced ECOmax double glazing, or Comfort Glass. Both offer exceptionally low U-values and achieve energy A ratings. Upgrading to custom-made uPVC double glazed windows will ensure a comfortable home all year round.

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    Curved sliding sash window
    uPVC bespoke window gable style

    Made-to-Measure Bespoke uPVC Window Styles

    uPVC is the most versatile window material and can be moulded into any shape. Available in many contemporary or traditional colours, including flat grey, or classic white. If you have an older property or are looking to add character, we can also finish your bespoke frames in one of our authentic woodgrain foils. With a variety of modern and classical window furniture options and decorative glazing, your custom-made windows can be completely unique to your home.

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    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.

    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.

    Frequently Asked Questions

    Find all the answers to our most frequently asked questions below.

    How much will new bespoke uPVC 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.

    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 colours are available for uPVC windows?

    A wide range of colours is available for uPVC windows, but choosing can be difficult. We’ve some advice on that subject… Read on.

    Which are the best windows and doors for homes by the beach?

    Both uPVC and aluminium windows are suitable for properties situated near the coast. Please see our recent article for more information.

    Begin Your Project

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







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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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      We’re one of the largest regional retail companies

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      Vetted for professionalism, competency & compliancy

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      Showrooms make it easy to choose

      The best place to narrow down your options and pick up on any points of interest.

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      What folks say about us

      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.

      Our Accreditations

      FENSA Approved
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      TSI Approved Code
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