What Is Sash Window Style: Exploring the World of Sash Windows

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Experts in Sash Windows Repair & Restoration, Timber Windows & Timber Doors in east midlands

Why Trust Sash Window Refurbish?

Sash Windows Refurbish specializes in providing repair and restoration services for wooden windows and doors in the UK, as well as various types of carpentry. During the process of fulfilling orders, we utilize a range of tools and paints, including saws, sprays, primers, resins, and adhesives. With more than 20 years of experience in carpentry, we have tested and used various brands and types of work tools, making us well-equipped to offer helpful advice on selecting the right tools and paints for your needs. Read more ...

A Comprehensive Guide to Sash Windows

Sash windows, also known as sliding sash windows, are a significant element of architectural heritage. They have stood the test of time, offering not only a touch of traditional charm but also remarkable practicality. For those uninitiated, let’s start with the basics.

Glazing Bars in Sash Windows

Glazing bars, the horizontal and vertical bars that divide the window into smaller panes of glass, are a defining characteristic of sash windows.

A cross-section of typical Glazing Bars

These bars not only add a decorative touch but also provide structural integrity. Understanding the significance of glazing bars is crucial when appreciating the craftsmanship behind sash windows.

Advantages of Sash Windows

Embracing Traditional Charm with Sash Windows

One of the most appealing aspects of sash windows is their ability to evoke a sense of timeless charm. The smooth sliding mechanism and the classic design make them an attractive choice for homeowners seeking to preserve the heritage aesthetics of their properties.

Ideal Choice for Homes in Conservation Areas

Sash windows are a preferred option for homes located in conservation areas. Their traditional appearance seamlessly blends with the historical surroundings, ensuring architectural coherence while adhering to preservation regulations.

Enhancing Ventilation with Sash Windows

Sash windows are renowned for their excellent ventilation capabilities. The ability to open both the top and bottom sashes allows for efficient airflow, promoting a healthier indoor environment. This natural ventilation not only reduces the reliance on artificial cooling systems but also enhances the overall comfort of the living space.

Different Types of Sash Windows

Georgian Sash Windows: Timeless Elegance

Georgian sash windows, characterized by their six-over-six pane configuration, exude timeless elegance. This design, originating from the 18th century, continues to captivate homeowners with its symmetrical layout and proportionate divisions.

Victorian Sash Windows: Classic Beauty

Victorian sash windows, prevalent in the 19th century, feature larger panes and intricate detailing. The ornate craftsmanship, often including stained glass elements, adds a touch of classic beauty to Victorian-era homes, making these windows highly sought after by enthusiasts of historical architecture.

Edwardian Sash Windows: Graceful Design

Edwardian sash windows, popular during the early 20th century, represent a transition from the ornate Victorian style to a more restrained and elegant design. Characterized by simple lines and large, unobstructed glass panels, these windows embody a sense of grace and sophistication.

Yorkshire Sliding Sashes: Regional Excellence

Yorkshire sliding sashes, a regional variation of sash windows, are notable for their distinctive horizontal sliding mechanism. Unlike traditional vertical sliding sashes, Yorkshire sashes open from side to side. This unique design is particularly prevalent in the northern regions of England and adds a touch of regional excellence to architectural aesthetics.

Sash Window Frame Materials

uPVC Frames: Modern and Durable

Modern sash windows often feature frames made from uPVC (unplasticized polyvinyl chloride), a highly durable and low-maintenance material. uPVC frames offer excellent thermal insulation, ensuring energy efficiency while requiring minimal upkeep.

Aluminium Frames: Sleek and Contemporary

Aluminium frames provide a sleek and contemporary look to sash windows. Known for their strength and durability, aluminium frames are resistant to corrosion and offer exceptional stability. Additionally, their slim profile allows for larger glass areas, maximizing natural light intake.

Timber Frames: Time-Tested Craftsmanship

Traditionalists and heritage enthusiasts often opt for timber frames, appreciating the authenticity and warmth that wood brings to a property. Timber frames, crafted from various wood species such as oak, pine, or mahogany, require regular maintenance but offer unmatched aesthetic appeal and a connection to historical building practices.

Double Glazing Options for Sash Windows

Standard Double Glazing: Enhancing Insulation

Standard double glazing involves two panes of glass separated by a layer of air or gas, typically argon or krypton. This configuration significantly improves insulation, reducing heat loss and noise infiltration. Homes with standard double glazing experience enhanced comfort levels and energy efficiency year-round.

Slim Double Glazing: Balancing Style and Efficiency

Slim double glazing retains the benefits of standard double glazing while incorporating thinner profiles. This option is ideal for homeowners seeking a balance between energy efficiency and preserving the delicate sightlines of historical sash windows. Slim double glazing provides adequate insulation without compromising the window’s aesthetic appeal.

Vacuum Glazing: Cutting-Edge Thermal Performance

Vacuum glazing represents the pinnacle of technological advancement in window insulation. This innovative solution consists of two panes of glass with a vacuum layer in between, eliminating heat transfer through conduction and convection. Vacuum glazing offers unparalleled thermal performance, making it an excellent choice for eco-conscious homeowners seeking maximum energy efficiency.

Cost of Sash Windows

The cost of sash windows in the UK can vary widely based on several factors such as the size of the windows, the materials used, and the level of customization. On average, you can expect to pay anywhere from £500 to £1,500 per window for uPVC sash windows, and between £800 to £2,500 per window for wooden sash windows. Higher-end options or custom designs can exceed these price ranges. Obtaining quotes from multiple suppliers or contractors is advisable to get an accurate estimate tailored to your specific requirements.


Are sash windows Georgian or Victorian?

Sash windows are a style of window found in both Georgian and Victorian architecture. They were popular during both periods and continued to be used in various architectural styles afterwards.

What is the difference between Edwardian and Victorian sash windows?

Edwardian sash windows are characterized by larger panes of glass and simpler designs compared to the ornate and intricate styles often seen in Victorian sash windows. Edwardian windows reflect the design preferences of the early 20th century.

What are sliding sash windows?

Sliding sash windows, also known as sash windows, consist of two vertically sliding panels, or sashes, that can move up and down within a frame. They are opened by sliding one or both panels vertically, allowing for efficient ventilation and airflow control.

What are dummy sash windows?

Dummy sash windows are non-functional replicas of traditional sash windows. They are designed to maintain the aesthetic appeal of a building while providing the benefits of modern, fixed windows. Dummy sashes do not move and are purely decorative.

What does sash window look like?

A sash window consists of two vertically sliding panels, usually made of glass, within a wooden or metal frame. The panels can be opened by sliding them vertically. Sash windows often have multiple panes divided by glazing bars, creating a distinctive grid pattern. Their classic design enhances both historical and contemporary architectural styles.

About the author

Glen Ramsey, who presently holds the positions of customer support and content manager, is a cherished member of the Sash Window Refurbish team. He is in a unique position to provide advice on all questions pertaining to the renovation of historic windows because he has a wealth of experience in all elements of window renovation, dealing with clients regularly and assisting them in choosing the best window-related course of action. He oversees the creation of information for all of our platforms in his capacity as content manager, including web content and other materials. Glen has witnessed the whole gamut of Sash Window Refurbish's window restoration activities, from our work on significant listed Georgian homes to a wide variety of smaller-scale private residential projects.


My technician Andrew replaced all my sash windows that had rotten sills. Accessing the rotten sills was not an easy task. He explained to me what needed to be done in order to fix the problem. He is a great person and I’m happy that he was the one who did the job. He is reliable, tidy, friendly and very professional. I highly recommend him.



I hired Andrew and Alex a while back to repair my damaged sash windows. They were was very considerate and very patient as he did his job. A few days ago, I had another problem with one of my sash lock keys and I called him again to come and fix the problem. I’m very impressed that Liam responded quickly and he not only fixed the problem but he also gave me a spare key. What a great after sales service!

Alan W.


I’m very impressed with the new windows that Andrew installed and also the reconditioning job that he did on other sash windows. The quality of his work is by far more superior than what we got when we hired another company a few years back. We will certainly hire him again if any window work arises

Kelly (Sleaford)


Our decorator referred us to Andrew because some of the work needed a window expert. Andrew together with our decorator did a fantastic job. The work was done efficiently and to the highest standards. Andrew is understanding, committed and very professional. I recommend him without any hesitation.

Steaven Reader


Alex did a great job in fixing windows in our terraced house. The windows were broken, frames damaged and the wood was also rotten. Alex's job was high quality and he did it pretty fast. I was also very impressed that he was considerate of my son’s asthma condition and maintained cleanliness. Top work.



Andrew just recently replaced three sash windows in my Edwardian house. He also repaired and replaced some sills and draught proofed three windows. In addition to that, he also did some carpentry work. What I like the most about Liam is that he did a clean job. He is very professional and always updated me about the timescales and costs. He also did his job with minimal disruptions. I highly recommend him.

Cris M.