Golden Ratio Sash Windows and Doors
Casement Windows London
Bespoke crafted timber casement windows
Casement Windows London
At Golden Ratio Windows, we are London’s premier specialists in the bespoke design, manufacture, and installation of premium timber casement windows. With years of experience serving properties across the capital, our master craftsmen combine traditional joinery methods with modern technology to deliver beautiful, high-performance wooden windows tailored to your home.
Whether you are upgrading a contemporary build or restoring a heritage period property, our made-to-measure casement windows offer the perfect blend of timeless elegance, enhanced security, and outstanding thermal efficiency.
The Benefits of Our Timber Casement Windows
Superior Energy Efficiency: Upgrading to our advanced double-glazed casement units eliminates drafts and significantly reduces heat loss, ensuring a warmer home and lower energy bills.
Fully Draught Proofed: High-quality compression seals are discreetly fitted into every frame to prevent any rattles or cold drafts.
Noise Reduction: Our premium glazing options help soundproof your home against the busy London streets.
Uncompromising Security: Your safety is our priority. All our windows feature insurance-approved, multi-point locking systems and robust ironmongery.
Exceptional Ventilation: Hinged at the side or top, casement windows open fully to catch side breezes, providing excellent airflow and natural light.
Bespoke Styles Tailored to Your London Home
We understand that every property is unique. That’s why we offer a comprehensive range of customisable styles to seamlessly match your architecture:
Flush Casement Windows: The traditional choice where the window sits flush within the frame for a clean, flat exterior. Perfect for both historic homes and sleek modern properties.
Period Casements (Georgian, Victorian & Edwardian): We accurately replicate authentic period details, including exact glazing bars, inner-mouldings, and traditional hardware, ensuring your new windows honor your home's original character.
Double / French Casements: Featuring two sashes that open out from the center, functioning much like French doors to offer unobstructed panoramic views.
Casement Bay Windows: Maximize interior space and light with bespoke angled or square bay window configurations.
Casement Windows
Manufactured and fitted to the highest standards...
At Golden Ratio Windows, we manufacture and fit the highest quality casement windows in a variety of styles and budgets for new and replacement windows. We offer a range of services when it comes down to casement windows including supply only, supply with measure up service, supply and fit with open creation and much more!
We work closely alongside our customers during the planning and design process of all casement windows and french doors, to ensure all measurements are taken accurately, as well as creating a style perfectly suited to your household in particular. This allows us to meet or even exceed your high expectations, leaving you with nothing but joy over your new windows or french doors.
If you are looking for a professional team to assist you with casement windows, look no further than Golden Ratio Windows in London. Give us a call today on 02034881695 or 07507391329 for a no-obligation quote, or to talk to a member of our team in more depth!
If a sash window repair is what you are looking for then check out our repair service page.
Expert Insight: Is Accoya® the right choice for your project?
| Performance Factor | Accoya® Timber | Hardwood (Oak/Sapele) | Softwood (Pine) |
|---|---|---|---|
| Expected Lifespan | 50+ Years (Above ground) | 30-40 Years | 10-15 Years |
| Swelling & Shrinkage | Minimal (75% less than others) | Moderate (can stick in winter) | High (prone to warping) |
| Maintenance Cycle | 10-12 years (Paint lasts longer) | 5-7 years | 3-5 years |
| Sustainability | Cradle-to-Cradle Gold Certified | Variable (Slow growth) | Standard FSC |
| Best For… | Heritage Windows & Bi-folds | Heavy-duty Entrance Doors | Budget-conscious repairs |
Accoya® is widely considered the superior choice for London joinery due to its dimensional stability. Unlike traditional timbers, Accoya does not swell or shrink with seasonal changes, ensuring that your doors and windows never stick, even during the dampest London winters...
Approved Accoya Timber Sash Windows
Accoya is an ultra-high performance wood made from sustainably sourced timberand modified through a patented acetylation process, delivering unmatched durabilityand dimensional stability.
We are approved manufacturers of Accoya products. Find out more about Accoya window styles.
Sash Repair Portfolio
Please take take a look at some of our recent work completed. Everything completed to the highest standard.
Here at Golden Ratio Windows we have built up an excellent reputation in our local area by offering the most comprehensive and expert service in London. From the planning stage to the finished article; we are with you every step of the way, making sure that whatever the task, you are completely satisfied with the end result. You can also rest assured that you will be receiving a professional, yet personal service for each job that we attend.
With so many years working in the trade, we are happy to answer any queries and provide quotes for any work that you are looking to have done. If you are in need of any work in London or the surrounding areas, then give us a call on 02034881695, or send us a message through our contact page.
CONTACT US