At Novaseal, we pride ourselves on offering high-quality uPVC bow and bay windows tailored for the unique architecture and aesthetics of properties in Guernsey. Our windows not only enhance the charm and value of your commercial spaces but also deliver on durability and thermal efficiency. Whether revamping a classic office façade or elevating a new development, our bespoke uPVC bow and bay windows provide the perfect blend of functionality and style, moulded to your exact specifications.
Having served the business community in Guernsey for years, Novaseal understands the demands of local climates and architectural styles. Our uPVC bow and bay windows are made from high-quality materials, providing durability, energy efficiency, and lasting appeal.
Bow and bay windows project outward from a home’s exterior, adding style, natural light, and extra interior space.
Bay Windows
Typically three panels: a large centre window with two angled side windows (30°, 45°, or 90°)
Angular design
Creates extra floor space, ideal for window seats or reading nooks
Bow Windows
Made of four or more panels forming a gentle curve
Smooth, rounded appearance
Lets in more light and suits traditional or Victorian-style homes
Shape: Bay windows are angular; bow windows are curved.
Panels: Bay windows typically have 3 panels; bow windows have 4–6.
Style: Bay windows suit modern and traditional homes; bow windows offer a classic, elegant look.
Light: Bow windows allow the most light due to their design.
We are proud to supply Deceuninck’s Traditional 2500 range. As a leading name in uPVC window manufacturing, Deceuninck is recognised for its commitment to quality, innovation, and long-lasting performance. Their Traditional 2500 uPVC bow and bay windows are engineered to deliver exceptional durability and thermal efficiency, helping to reduce energy use and lower heating costs. Built to be highly weather-resistant, these windows are designed to stand up to everything the Guernsey climate has to offer.
Deceuninck Traditional 2500 Collection
Find out about the numerous advantages of choosing uPVC bow & bay windows for your next project. Contact the Novaseal team on 01329 233500 to discuss the options available or use our design tool to generate an online quote.
There are numerous benefits to installing uPVC bow & bay windows in your customers’ homes. Firstly, these windows allow for increased natural light, creating a brighter and more inviting living space. The wide views provided by these windows also enhance the overall aesthetic appeal of the property. Additionally, these windows are energy-efficient, with excellent insulation properties that may help to reduce heat loss and lower energy bills.
Energy Efficiency
Energy efficiency is an important consideration for homeowners today. With Novaseal’s uPVC bow and bay windows, your customers can enjoy improved thermal performance and comfort. Our premium windows, combined with high-quality glazing options, minimise heat loss and maximise insulation. This helps homes stay warmer in the winter and cooler in the summer, reducing reliance on heating and air conditioning. By choosing energy-efficient windows, your customers can lower their energy bills while also reducing their carbon footprint.
Premium Materials
At Novaseal, we are dedicated to providing high-quality products that last. Our uPVC bow and bay windows are crafted from premium materials to ensure strength, durability, and long-term performance. The robust uPVC frames retain their shape and functionality over time, even when exposed to harsh weather conditions. By choosing windows made from superior materials, your customers can be confident they are investing in a reliable, long-lasting solution for their home.
Strong and Long-Lasting
At Novaseal, we use durable profiles designed to stand the test of time. Engineered to maintain their shape and structural integrity, our uPVC bow and bay windows remain secure and fully functional for years. By choosing windows with robust, long-lasting profiles, your customers can enjoy peace of mind, knowing their investment is built to withstand the elements.

If you’re a tradesperson in Guernsey looking to provide your customers with high-quality uPVC bow & bay windows, look no further than Novaseal. Use our online quoting engine to get free, no obligation prices. Alternatively, contact us today for more information or to request a quote. Our friendly and knowledgeable team will be happy to assist you in finding the perfect window solution for your customers.