Flush Sash Windows
Window Warehouse is a Portsmouth-based uPVC flush sash window supplier. We supply flush sash windows across South East England including Southampton, Poole, Weymouth, Hampshire, Surrey, London, Dorset, Berkshire, Essex, Kent, Wiltshire and Sussex. Find a double glazing installer near you today.
- Available in both double glazed and triple glazed options.
- 70mm thick uPVC profile with outer frame in either 56mm or 72mm.
- These windows can reach U-values as low as 1.1 W/m2K.
- The truly flush sash is just 61mm.
- Multi point locking for a secure and protected home.
The Classic Look Without the Hassle
Timber frames offer a timeless, traditional aesthetic, but they come with the problem of rotting frames, peeling paint, and costly maintenance. Our uPVC flush sash windows are the perfect solution. Designed to perfectly replicate the authentic look of traditional timber, they give your home that stylish, classic charm. However, unlike timber, our double glazed windows are incredibly durable and require virtually no upkeep. You get all the style you desire with the peace of mind of a modern, low maintenance window.
Advanced Security for Your Peace of Mind
Your home should be your safe place. That is why our replacement windows are designed with the latest in security technology to give you complete confidence. Every flush sash window replacement features strong multi-point locking as standard, creating multiple secure points along the frame to make it highly resistant to forced entry. With internally beaded glazing, the glass is secured from the inside, providing an extra layer of protection. These features ensure your new double glazed windows will keep your family and belongings safe and secure.
Built to Last, Guaranteed for 10 Years
Choosing new windows is a significant investment, and you deserve a product and a partner you can trust. With over 35 years of manufacturing experience, we have the expertise and knowledge to ensure every window we produce is of the highest quality. We stand behind our design and the durability of our products, which is why every one of our flush sash windows comes with a full 10-year guarantee. This is our promise to you that you are investing in a reliable, long-lasting solution for your home.
Fully Customisable Flush Sash Windows
Our uPVC flush sash windows offer a customisable solution to suit your property and personal style perfectly. we offer sash windows across the South of England, including Aldershot, Andover, Basingstoke, Bournemouth, Dorchester, Farnborough, Fleet, Poole, Southampton, Weymouth and Winchester. With a wide range of colours, authentic finishes, and decorative designs available, you can truly make your new double glazed windows your own. Beyond aesthetics, our commitment to high-quality construction ensures you will enjoy your windows for years to come. That's why we back every installation with a comprehensive 10-year guarantee for complete peace of mind.
Improved Comfort and Energy Efficiency
Flush sash windows are not just about looks; they are designed for superior performance. Our double glazed windows feature excellent thermal efficiency, creating an effective barrier against the outside elements. This helps to keep your home warmer in the winter and cooler in the summer, preventing heat from escaping and cold draughts from entering. By improving your home's insulation, our energy efficient windows can help you reduce your reliance on heating and potentially, in turn, lower your energy bills.
Why Choose Window Warehouse?
When it comes to such an important home improvement project, choosing the right supplier is essential. As a manufacturer with over 35 years of experience, we have a level of expertise that sets us apart. We handle every step of the process with care, ensuring our uPVC flush sash windows meet the highest standards of quality and manufacturing. By choosing Window Warehouse, you are not just getting a product; you are partnering with a reliable, local expert dedicated to making your window replacement journey as smooth and stress-free as possible. We also have a dedicated network of installers who are trusted within the industry to deliver the best results possible.
You can contact our team to discuss your project, or use our online quoting tool for a custom quote.
View Our Brochure
You can discover the individual benefits of our flush sash windows in our latest supplier brochure.
Hardware options are an essential part of the overall look of your flush sash windows. Depending on what you choose, your double glazed windows can adopt either a more contemporary look, in keeping with your new build, or a more traditional aesthetic which is perfect for traditional and heritage properties. There are many ways to customise your new double glazed windows. You can choose a window style that suits you by selecting design features for nearly every aspect of your flush sash windows, from the handles to locks and even the hinges.
Complete the look of your flush sash windows with our beautiful window hardware options today.
Inline Espag Handle
Offset Espag Handles
View Our Inspiration Gallery
Take a look through our inspiration gallery where you can find our uPVC flush sash windows installed in properties just like yours!
View GalleryLatest Product Video
Take a look at our latest uPVC flush sash window product video for an even deeper understanding of our product.
View VideosFrequently asked questions
Can’t find the answer you’re looking for? Reach out to our customer support team.
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What are flush sash windows?
- Flush sash windows are a type of window where the opening sash sits perfectly flush within the frame, creating a clean, flat, and seamless exterior finish. This design is inspired by traditional timber windows but is crafted from modern, low-maintenance uPVC.
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Are uPVC flush sash windows energy efficient?
- Our flush sash windows are energy rated up to an A for energy efficiency, with U-values as low as 1.1 W/m2K with the triple glazed option.
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How much do new flush sash windows cost?
- The final price of your flush sash windows depends on several factors, including the size and number of windows, your chosen colour and finish, and any additional hardware or glazing options. Contact us for a free, no-obligation quote.
