Flush casement windows offer the timeless look of traditional timber with the reliable performance of modern uPVC. At AK uPVC Solutions, we supply high-quality flush windows that sit perfectly level with the outer frame for a sleek, clean finish. Whether you are looking to retain the character of a heritage home in Buckingham or want a minimalist look for a new build, our windows are crafted for your specific home, delivering excellent energy efficiency and security.

Authentic Style
Modern Performance
Secure & Strong
Our flush sash windows are crafted for both beauty and endurance, providing a warm, comfortable home environment.
Using advanced multi-chambered profiles and high-grade glazing, our flush windows minimize heat loss. This helps keep your home warm in winter and reduces energy costs.
Fitted with premium weatherseals, our windows prevent draughts and moisture ingress, ensuring your property remains dry and comfortable in all weather.
Security is at the heart of our design. We use robust multi-point locks as standard, offering reliable protection and peace of mind for your property.

We offer a wide selection of colours and finishes to match your home’s unique style. Whether you prefer classic white, contemporary grey, or a rich woodgrain finish, we can help you find the perfect look. Customize your windows with various glazing options to suit your personal preference.

At AK uPVC Solutions, we are a family-run business dedicated to providing honest advice and high-quality workmanship for your home.
Frequently Asked Questions
Flush casement windows feature a sash that sits level with the outer frame when closed, providing a sleek, traditional appearance reminiscent of classic timber windows.
Pricing varies based on your specific requirements, such as size, finish, and glazing. As we provide made-to-measure solutions, we offer free, no-obligation quotations to give you an accurate price for your project.
Yes, they are highly secure. Our flush sash windows include robust multi-point locking systems as standard and are engineered for long-lasting security.
The primary difference is the design. A standard casement window has a sash that sits proud of the frame, whereas a flush sash window sits perfectly level with the frame for a more traditional, uncluttered look.
Our flush sash windows are extremely energy efficient. They feature multi-chambered profiles that minimize heat loss, helping to keep your home warm and your energy bills low.