Flush casement windows are a popular choice for modern UK homes due to their sleek design, energy efficiency, and low maintenance. Unlike traditional casement windows, the sash sits flush within the frame, providing a clean, contemporary look. These windows are highly versatile, offering improved weather resistance and noise reduction.
Secure Glaze, a leading UK provider, specializes in flush casement UPVC windows, offering custom designs tailored to each home’s needs. With various glazing options like double and triple glazing, Secure Glaze ensures enhanced energy efficiency and security. Their expert installation team guarantees a seamless experience, providing high-quality products designed for style, safety, and durability. Choose Secure Glaze for an elegant, energy-efficient window solution that adds value and curb appeal to any property.
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Durable and Stylish Flush Casement Windows for Modern Living
Casement Window | Price of Windows | Double Glazing
With the growing popularity of modern windows in UK homes, homeowners are increasingly turning to sleek, stylish, and efficient solutions that elevate both form and function. Among the top choices gaining traction are flush casement windows, a refined evolution of traditional casement window styles. Defined by their clean, flat appearance where the sash sits flush within the frame, these windows offer a minimalist look that complements both contemporary and classic architecture.
At the forefront of this trend, Secure Glaze provides premium flush casement windows across the UK, blending cutting-edge design with robust security and outstanding energy efficiency. Whether you’re renovating a modern home or restoring a heritage property, our range of modern casement window styles delivers the perfect balance of elegance and performance. Discover why more UK homeowners are choosing Secure Glaze for window solutions that truly transform.
What is a Flush Casement Window?

A flush casement window is a style of window where the sash, the part that opens, sits completely flush with the frame, creating a smooth, flat surface on the outside. Unlike standard casement windows, where the sash slightly protrudes when closed, flush windows offer a neater and more contemporary appearance.
The defining feature of flush frame windows is their seamless finish. When shut, the sash aligns perfectly with the outer frame, giving a refined look that suits both modern builds and traditional renovations.
But these windows offer more than just aesthetics. Their tight-fitting design provides excellent weatherproofing, improved noise reduction, and enhanced insulation. The clean lines and minimalist form make them a top choice for UK homeowners seeking a balance between visual appeal and performance.
So, if you’re wondering what a flush casement window?, the answer lies in its elegance, functionality, and versatility for modern living.
Types of Flush Casement Windows Available in the UK

Side-Hung Casement Windows
Side-hung casement windows are hinged at the side and open outward, offering a classic and functional design. Ideal for areas requiring strong ventilation, they are a popular choice for living spaces and bedrooms. These modern casement windows provide easy access for cleaning and excellent airflow. Their design fits both traditional and contemporary home aesthetics with ease.
- Excellent ventilation
- Easy maintenance
Top-Hung Casement Windows
Top-hung windows are hinged at the top and open from the bottom, providing safe airflow even during light rain. They’re commonly used in bathrooms, hallways, and compact areas due to their space-saving functionality. These hinged casement windows are also ideal for homes looking for a subtle window style that still provides light and air circulation.
- Rain protection
- Space-efficient
French Casement Windows
French casement windows feature two side-hung sashes that open outward without a central bar. This creates a wide, unobstructed opening, perfect for scenic views or emergency escape routes. They bring a touch of elegance and are excellent for enhancing the appearance of larger rooms. These windows add sophistication to both modern and heritage homes.
- Uninterrupted views
- Elegant style
Double-Glazed Casement Windows
Double-glazed casement windows consist of two glass panes separated by a spacer. They provide enhanced insulation, reduced energy costs, and better noise control. These double-glazed casement windows are perfect for UK homes looking to improve efficiency while maintaining style and comfort. They’re a reliable upgrade for any home type.
- Energy efficient
- Noise reduction
Triple-Glazed Options
Triple-glazing casement windows include three layers of glass, offering the highest level of insulation and performance. Ideal for cold climates or busy city locations, they help maintain interior comfort and reduce external noise. Their advanced glazing makes them an energy-smart choice for modern households seeking sustainability and silence.
- Maximum insulation
- Superior quiet
Why Choose Flush Casement UPVC Windows for Modern Homes?

Exceptional Energy Efficiency
Flush UPVC windows with double or triple glazing help reduce heat loss and maintain indoor temperatures. These energy-efficient windows lower utility bills and support eco-friendly living. Whether you choose double glazing or triple glazing, the airtight flush fit frame improves insulation and keeps your home warm year-round.
Enhanced Security Features
Flush casement UPVC windows offer strong internal beading and secure locking systems. The flush fit design eliminates gaps, making forced entry more difficult. With advanced hardware and robust frame construction, these windows provide reliable protection for modern homes. Ideal for families prioritizing safety without compromising on appearance.
Low Maintenance and Durability
Flush UPVC windows are built to resist fading, warping, and weather damage. Their smooth, seamless finish requires little maintenance—just a wipe-down to stay clean. Unlike timber frames, they don’t need regular painting or varnishing, making them ideal for busy households seeking practical, stylish, long-lasting solutions.
Sleek, Seamless Appearance
Flush glazed windows sit level with the frame, creating a minimalist and modern look that suits contemporary homes. This flush design enhances kerb appeal while blending effortlessly with various architectural styles. Whether renovating or building new, flush-fit windows deliver a clean, streamlined aesthetic that elevates any home exterior.
Secure Glaze: Transforming UK Homes with Flush Casement Elegance
For years, Secure Glaze has been at the forefront of delivering high-quality casement windows that UK homeowners can rely on. We take pride in our legacy of excellence, offering unmatched craftsmanship and contemporary designs tailored to modern homes. Our windows combine durability with sleek, minimalist aesthetics, perfect for any property looking to elevate its style and performance.
Exceptional Craftsmanship and Quality
At Secure Glaze, every window is carefully crafted to meet the highest standards of quality and design. Our flush casement UPVC windows are manufactured using cutting-edge technology and superior materials, ensuring long-lasting functionality and timeless elegance.
- Precision-engineered designs
- Top-quality materials for durability
Modern Aesthetics for Every Home
Whether you’re updating a traditional property or creating a new build, our windows provide the ideal balance of classic style and modern features. Our flush-fit windows and its frame designs are sleek and contemporary, enhancing your home’s external appearance.
- Sleek flush designs
- Perfect for contemporary and period properties
Enhanced Security Features
Our flush casement windows are designed with advanced multi-point locking systems to ensure superior security for your home. These locking mechanisms make your property more resistant to break-ins and provide peace of mind.
- Multi-point locking systems
- Increased home security
Energy Efficiency and Insulation
Our flush casement UPVC windows are engineered to provide optimal insulation, reducing heat loss and improving energy efficiency. Whether you opt for double glazing or triple glazing, these windows contribute to lower heating bills.
- Enhanced thermal performance
- Energy-efficient design
Seamless Installation and Customer Satisfaction
Secure Glaze is committed to delivering a smooth and hassle-free experience. From expert consultation to flawless installation, we ensure every detail is taken care of, ensuring that your windows fit perfectly and perform to the highest standards.
- Expert installation teams
- Exceptional customer care
By choosing Secure Glaze flush casement windows prices, you’re investing in more than just windows; you’re investing in a long-lasting solution that improves the look, security, and comfort of your home. Let us help transform your space with flush casement UPVC windows that combine modern design with superior performance.
Order Your Flush Casement Windows Online with Secure Glaze
“Your Dream Windows, Just a Few Clicks Away”

At Secure Glaze, we make it easier than ever to upgrade your home with premium flush casement windows online. With our streamlined online platform, you can browse a wide range of flush UPVC windows online, select your desired style and finish, and receive a personalized quote—all from the comfort of your home. No more trips to the showroom or lengthy waiting times—just convenience, efficiency, and quality, all in one place.
Easy Online Ordering Process
Ordering your flush casement windows online with Secure Glaze is simple. Our user-friendly website allows you to explore various options, including frame designs, glazing types, and finishes. You can easily customize the details based on your preferences and your home’s needs. After selecting your window, get a quick quote tailored to your specifications, ensuring transparency and no hidden fees.
- Customizable window choices
- Instant personalized quotes
Expert Assistance at Every Step
We understand that choosing the right windows can be a big decision. That’s why our team is available to provide expert advice throughout the process. Whether you have questions about flush UPVC windows, installation, or choosing the right style, our professionals are just a call or email away.
- Dedicated customer support
- Expert guidance and advice
Fast and Reliable Delivery
Once you’ve placed your order, we ensure timely delivery to your doorstep. Our efficient logistics team ensures that your flush casement windows cost arrive safely and on time. We also provide detailed installation guides or connect you with certified professionals to get your windows installed without hassle.
- On-time delivery guarantee
- Installation assistance options
With Secure Glaze UK, ordering your new flush UPVC windows has never been more convenient. Experience the ease of online ordering and enjoy the beauty and functionality of high-quality windows in your home.
Casement Windows vs Sash Windows: Which One is Better?

When it comes to choosing windows for your home, the decision often boils down to casement windows vs sash windows. Both options offer distinct advantages, but they cater to different needs in terms of aesthetics, functionality, cost, and efficiency. Let’s compare these two popular window types to help you make an informed decision.
Aesthetics
- Casement Windows: Modern, sleek, and minimalist. Casement windows UK are ideal for contemporary homes and properties that prioritize clean lines and understated elegance.
- Sash Windows: Classic and timeless, sash windows are traditionally associated with period homes and offer a more decorative, historical charm.
Functionality
- Casement Windows: Hinged at the side, casement windows open outward, providing excellent ventilation. They also offer easy cleaning and maintenance.
- Sash Windows: Sash windows are vertically sliding, which is perfect for traditional homes, but can be more challenging to maintain, especially when it comes to keeping the tracks clear.
Cost
- Casement Windows: Generally more affordable than sash windows, especially when considering the upvc casement window options. They are also more durable, lowering long-term repair costs.
- Sash Windows: Typically, sash windows come at a higher price point due to their intricate design and often require more maintenance and repairs.
Efficiency
- Casement Windows: UPVC casement windows offer superior energy efficiency, especially when double or triple glazed, ensuring better insulation and reduced energy costs.
- Sash Windows: Though they can be energy-efficient when modernized, older sash windows often suffer from drafts and leaks, requiring regular maintenance to maintain efficiency.
Recommendation
- Casement Windows: Perfect for modern homes seeking energy efficiency and low maintenance.
- Sash Windows: Ideal for homeowners of period properties who wish to preserve the charm of traditional designs while offering a more historical look.
Benefits of Choosing Secure Glaze Flush Casement Windows
Choosing Secure Glaze flush casement windows offers numerous advantages for homeowners in the UK. These windows combine security, style, and energy efficiency, making them a top choice for modern properties. Here are the key benefits:
Maximum Security with Advanced Locking Systems
Our flush casement windows are equipped with multi-point locking systems, providing enhanced security to keep your home safe from intruders. The modern design ensures the windows are securely locked at multiple points, offering peace of mind.
A-rated Energy Efficiency for Lower Energy Bills
Secure Glaze windows are built to be energy-efficient, with A-rated performance that helps keep your home warm in winter and cool in summer. This reduces the need for constant heating or cooling, which can lead to significant savings on energy bills.
Stylish and Modern Designs That Boost Kerb Appeal
The sleek and minimalist design of our flush casement windows adds a contemporary touch to your property. Whether you’re renovating or building a new home, these windows will enhance the aesthetic value and kerb appeal of your property.
Customisable UPVC Options for a Perfect Fit
We offer a variety of finishes and colours for our flush UPVC windows, allowing you to personalise your windows to match your home’s style. Our customisation options ensure a perfect fit for every property.
Expert UK-based Installation Team
Our dedicated and professional installation team is based in the UK and is fully trained to ensure the proper fitting of your windows. We pride ourselves on providing an efficient, hassle-free installation experience, ensuring your new flush casement windows are installed with precision and care.
Serving UK Homeowners with Quality and Class

At Secure Glaze, we are proud to serve homeowners across the UK, delivering top-quality flush casement windows that combine style, security, and energy efficiency. We have established a reputation for excellence in the window installation industry, with a commitment to customer satisfaction and a passion for transforming homes with our superior window solutions.
Areas We Serve:
| London | Manchester | Birmingham |
| Liverpool | Edinburgh | Glasgow |
| Cardiff | Bristol | Sheffield |
Whether you’re in a bustling city or a quieter countryside area, Secure Glaze brings high-end windows to homes all over the UK, ensuring top-notch service no matter your location.
Real-Life Testimonials:
“We recently had Secure Glaze install flush casement windows in our home in Manchester, and the results were incredible. The whole process was seamless, from the initial consultation to the final installation. Not only do the windows look fantastic, but we’ve also noticed a significant difference in energy efficiency!”
– Tom and Lisa, Manchester
“We wanted modern windows for our new build in London, and Secure Glaze delivered exactly what we envisioned. Their team was professional, and the quality of the windows exceeded our expectations. Our home feels safer and looks stylish!”
– Sarah, London
Conclusion: Reinforcing Trust and Local Credibility
Secure Glaze is not just a leading name in the window industry; we’re a trusted part of your local community. With years of experience in the UK, we pride ourselves on our high customer satisfaction rates and reliable service. We understand the needs of UK homeowners and are committed to offering quality solutions backed by expert advice and top-tier installations.
Our flush casement UPVC windows are designed to elevate homes while providing peace of mind with their unmatched security features and energy efficiency. Secure Glaze ensures that homeowners across the UK receive windows that offer both functionality and modern elegance.
“Get Your Flush Casement Window Quote”
FAQs
What is a flush casement window?
A flush casement window features a sash that sits level with the frame, offering a sleek, modern look. It combines traditional charm with modern performance, ideal for contemporary homes.
How much do flush casement windows cost in the UK?
Prices typically range from £250 to £700+, depending on size, glazing type, and material. Custom finishes or triple glazing may increase the cost.
Are flush casement windows energy efficient?
Yes, flush casement windows, especially when double or triple-glazed, significantly reduce heat loss. This helps improve insulation and lower energy bills over time.



