We supply and install elegant flush casement windows in uPVC and timber, designed to replicate the refined appearance of traditional joinery while delivering a clean, modern finish. Sitting flush within the frame, these windows create a smooth, understated look that adds a sense of quality and character to both period and contemporary homes.
Available in a wide selection of colours, realistic wood‑effect finishes and authentic detailing, flush casement windows can be tailored to suit a variety of architectural styles. This flexibility makes them an ideal choice for homeowners seeking heritage aesthetics without compromising on modern performance.
Alongside their visual appeal, flush casement windows are engineered to provide excellent thermal efficiency and reliable security. Their robust construction and advanced glazing options help improve insulation and comfort while supporting long‑term durability and peace of mind.
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Flush casement windows feature clean, minimalist sightlines, blending a modern finish with traditional design principles. Sitting flush within the frame, they allow natural light to flow freely into your rooms, creating a bright and refined interior appearance.
Available in both uPVC and timber, flush casement windows can be customised in a wide range of finishes. Depending on your chosen material, you may select from an extensive RAL colour palette or a choice of realistic wood‑effect finishes. To complete the design, traditional detailing such as astragal bars and a selection of window furniture can be incorporated into each made‑to‑measure window, ensuring the final result reflects your home’s character and your personal style.
Flush sash windows are popular with homeowners in the Midlands looking for a window style that combines the traditional appearance with modern levels of security. They’re fitted with sophisticated locking mechanisms which are continuously tested to strict industry standards, including PAS 24 regulations, giving your home the ultimate protection. Incredibly robust and sturdy, your home will be protected from harsh weathers too for a long time to come.
Get a QuoteColour Options
Flush sash windows can be finished in over 150+ RAL colours and a number of traditional timber effects, ensuring a design that can complement any type of property. You could also choose a dual colour option depending on the material you opt for, so that the exterior and interior frame are different colours. Take a look below to see some of the different shades that are available for you to choose from.
Red
Anthracite Grey
Black
Chartwell Green
Golden Oak
Cream
Oak
Rosewood
Glazing Options
Our flush sash windows are fitted with A+ energy rated double glazing as standard. You can choose to upgrade to triple glazing for heightened noise reduction and energy efficiency capabilities, depending on your chosen window material. You can also opt for self-cleaning, anti-glare or decorative glazing options.
We offer Pilkington SaniTise glass, a world-first glazing solution which is lined with a photocatalytic coating which has antimicrobial features. It reduces the risk of microbial transmission, protecting from viruses spreading from commonly touched surfaces, like glazing products.
Pelerine
Contora Texture
Contora
Stippolyte
Stippolyte Texture
Digital
Charcoal
Taffeta
Oak
Chantilly
Minster
Mayflower
Florielle
Everglade
Minster Texture
Accessories
Flush sash windows can be fitted with any of our window furniture options. Modern window designs perfectly suit chrome sleek handlebars, whereas traditional window styles can easily compliment vintage styles such as pear drop and monkey tail handles.
Monkey Tail Handle
Dummy Stay
Security
Flush sash windows are one of the most secure options available on the market. They meet PAS 24 certifications and are continuously tested to strict industry standards. We fit all of our flush sash windows with pioneering multi-point locking mechanisms, which bolt the sash to the frame at several points which maximises their resilience from harsh forces. For homeowners looking for even greater peace of mind, you can choose to include additional security features into your custom-designed replacement windows.
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Our uPVC and timber flush sash windows are made using high-quality materials and modern manufacturing techniques to increase their energy efficiency performances. Both material options offer A+ energy ratings and low U-values, meaning that the cold elements are kept out of your home and the warmth is retained. Not only will you save money on your heating bills, but your property’s carbon footprint will be significantly reduced.
Get in touchOur premium uPVC flush sash windows are almost impossible to tell apart from natural timber flush sashes thanks to a stylish smooth corner weld feature. Designed to replicate beautiful timber finishes and slim sightlines fused with the low maintenance benefits of uPVC, plus the option of matching welded cills, they’re often approved for installation in restrictive West Midlands conservation areas.
Creating a distinct style statement, our seamless weld differs from standard uPVC finishes as it eliminates unsightly uPVC corner welds – making it perfect for heritage and period properties in need of ‘like-for-like’ flush timber window frames, as well as modern properties seeking unique character and kerb appeal.
Get A QuoteYes, flush casement windows can be fitted with high‑performance double glazing, allowing you to enjoy traditional styling alongside modern thermal efficiency. Double glazed units help reduce heat loss, improve comfort and support lower energy usage compared to single glazing.
Flush casement windows are side‑hung and typically open outwards using modern hinge systems. When closed, the sash sits flush within the frame, creating a smooth, flat external appearance that reflects traditional timber joinery while benefiting from modern engineering.
uPVC flush casement windows can add value by enhancing both the appearance and performance of a property. Their traditional design suits period and heritage‑style homes, while the benefits of uPVC — including improved security, energy efficiency and low maintenance — make them a practical, long‑term investment for homeowners.
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uPVC Windows
Thanks to advances in double glazing technology, modern uPVC windows deliver strong energy efficiency, security and long‑term performance.
Find out moreTimber Windows
For those seeking to improve the environmental performance of their home, timber windows provide a strong and sustainable replacement choice.
Find out moreWith a team bringing together over 35 years of industry experience, Astoria Windows has built a strong reputation for delivering high‑quality home improvement solutions you can rely on. Having completed over 25,000 installations, it’s likely we’ve worked on homes near you across Shrewsbury, Telford, Wolverhampton and the surrounding areas throughout Shropshire and the West Midlands.
Our long‑standing success is driven by a genuine commitment to customer care. From initial consultation through to installation, our experienced team works closely with each homeowner to ensure every project is delivered to exact requirements. Our fully trained installers and dedicated customer service team take pride in providing a smooth, professional experience and consistently high standards of workmanship on every installation.
At Astoria Windows, we provide complete peace of mind by operating to recognised industry standards. We are a FENSA‑registered installer, ensuring that all window and door installations comply with current building regulations. For added reassurance, every installation is also covered by a 10‑year insurance‑backed guarantee, provided as standard.
With a team bringing together over 35 years of industry experience, we have built a strong reputation for quality workmanship, reliable service and honest advice. Much of our work comes through recommendation, and our customer reviews reflect the care and attention our team brings to every project. We take pride in the trust homeowners place in us and in the long‑standing relationships we’ve built by delivering consistently high standards.
Our Exclusive Signature Club is free to join and entitles members to a fantastic range of discounts and offers above and beyond that of any standard promotions. It’s simple to sign up, simply fill in the form and we will send you your very own Signature Club card in the post along with our latest Signature Club promotions.
