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uPVC bay windows with A rated energy efficiency

An elegant variation of the traditional casement style, uPVC bay windows are the perfect way to enhance the appearance of your home. Bay windows are angular in appearance and usually have three window panels. However, dependent on your space, we can install more than three panes for a larger bay window style. This design makes them perfect for creating a large windowsill or even a window seat. As they protrude from your home, they give the illusion that your room is larger as well as giving greater views outside. Bow windows offer a curvaceous variation on the classic angled bay window design, typically designed with four to five sections.

With our slim uPVC window frames, you can fill your home with light which will add to the airy feel. Bay windows can include either casementsliding sash or heritage window styles, dependent on your preferred aesthetic. By using Georgian or leaded bars, they can really spruce up the look of your home and add an authentic Victorian appearance. With the choice of a chamfered or ovolo sculptured frame, you can make these windows perfectly suit your home.

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    Why choose uPVC bay windows?

    Adaptable stylings

    We offer two popular profile choices; contemporary Chamfered style or the traditional Ovolo sculptured style.

    Modern energy performance

    Available with 3, 5 and 6 insulating chambers, our multi-chambered uPVC bay & bow windows attain A energy ratings with ease.

    Superior security

    Featuring locks embedded into the frame, optional security enhancements include fixing the hardware into the steel reinforcements and PAS 24 window security compliance.

    Low maintenance

    Our uPVC bay & bow windows offer a maintenance-free design that won't rot, crack, warp, or fade throughout its lifespan.

    Sustainably sourced

    As well as offering EcoMax Glass as standard, our uPVC bay & bow windows are created from 80% recycled manufacturing off cuts.

  • Colours
  • Glazing
  • Frame Options
  • Furniture
  • Advice + Guidance
  • Colours

    Our uPVC bay and bow windows can come in a whole range of colours including classic white or heritage Chartwell Green. With a wide range of contemporary, timeless, traditional & statement colours to choose from, we also offer a range of wood effect finishes for an authentic look.

    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

    We offer EcoMAX Glass™ as standard on all of our uPVC window products. We also install advanced 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 bow and bay 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.

    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

    Chamfered Frame

    Chamfered Frame

    Flush Sash Frame

    Flush Sash 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

    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

    Advice + Guidance

    Replacement uPVC bay windows with great security

    Our range of uPVC bay windows utilise our popular casement window profile which is completely draught-free. With multi-chambered profiles, they’ll keep the warmth inside of your home, meaning you’ll save money on your heating bills.

    Finished in an anti-fade and protective coating, they’re also weather resistant. So, they won’t corrode, weaken or split over time, even when subjected to harsh conditions. Maintenance-free, they’re a lasting investment that will stay looking as good as the day they were installed with just a simple clean.

    We know that home security is a priority for any homeowner, which is why we fit our bay and bow windows with multi-point locks as standard. The windows have been rigorously tested to common burglary techniques to ensure they resist forced entry. For absolute peace of mind, additional security enhancements include fixing the hardware into the steel reinforcements and PAS 24 window security compliance.

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    White uPVC bow window
    Garden view of a white bay window

    uPVC bay windows will add additional space and elegance

    Whilst bay windows originate from the Victorian era, they can effortlessly achieve modern styles too. With a wide range of contemporary, timeless, traditional & statement colours available in uPVC, we can create the perfect solution to add kerb appeal to your property. If you’re looking for the classical timber aesthetic, we also offer a range of authentic wood effect frames for a heritage window style. With a plethora of attractive window furniture pieces, they’ll add the finishing touches to complete the replacement window design.

    Our uPVC bay window specifications include our high-performance EcoMax Glass as standard. A energy rated, you’ll instantly notice the benefits of its energy efficiency capabilities. For homeowners who reside in busier areas, or in homes more exposed to harsh climates, we can fit your windows with our innovative Comfort Glass. This adds an additional layer for heightened insulation abilities.

    Whilst traditional bay windows have 3 windowpanes, we can fit more windows for larger spaces. This is ideal for big rooms and will let an abundance of light brighten the room.

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    Your Window and Door Journey with SEH BAC

    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.

    Frequently Asked Questions

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

    How much will new uPVC bay windows cost?

    There are many aspects to consider when purchasing new windows, such as material, thermal performance and whether it's been accredited by industry bodies to ensure its quality. To accommodate the majority of budgets, we offer a range of comprehensive finance options, including 2 years interest free credit & buy now pay later. Find more information on double glazed window prices here.

    What is the difference between a bay and a bow window?

    Typically, bay windows feature an angled projection with three openings. Bow windows provide a curved, semi-circular projection with 4 to 5 openings.

    What colours are available for uPVC windows?

    Over the last 20 years or so, uPVC windows have gone from strength to strength in terms of performance and style. Not only are they incredibly energy efficient, they're also available in a variety of classic, modern and eclectic shades. Read more

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

    Both uPVC and aluminium windows hold an array of benefits for properties situated near the coast. Read on to learn exactly what these benefits are.

    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.

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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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